Top Pick: Eden Sleep Organic Mattress
Toxin-free and eco-friendly.
No fiberglass, antimony, modacrylic, or respirable crystalline silica.
No pesticide residues, high VOC chemicals, or toxic flame retardants.
Uses natural wool in the fire barrier.
18 month home trial.
Perfect for front, back, and side sleepers (single and couples).
Need a cheaper mattress? If the Eden Sleep mattress is too expensive for you, then I strongly suggest checking out the SweetNight Twilight because it’s a fraction of the price and it’s fiberglass free – check the exact price here (and use the code DAN at the checkout to get the maximum discount) or see item #9 on this list for full details.
- Article medically reviewed and fact-checked by Dr. Dimitar Marinov (M.D, Ph.D, RDN).
Fiberglass isn’t something that you want to have inside your mattress.
Because many people have found out the hard way that unwittingly removing the cover or having a hole appear in the outer part of the mattress can release millions of fiberglass fragments into your home.
And as the video that I’ve embedded into the buyer’s guide part of this review illustrates, fiberglass can cause skin irritation and breathing difficulties so severe in both adults and children alike that some families have apparently been forced to move out of their home.
Whilst others have spent in excess of $10,000 to have professional cleaning companies remove the stubborn fiberglass shards from just above every surface in their home.
So taking the time to find a fiberglass free mattress is well worth the effort.
But having spent countless hours trying to find out which mattresses do not contain fiberglass, I can tell you that it’s no easy task.
Because many manufacturers will attempt to hide the fact that their mattresses contain fiberglass as far as is legally possible by using different wording or trying to fob you off with copy and paste technical jargon when you contact their customer service reps.
That’s why I’ve put together this hand-picked list of the best fiberglass free mattresses that you can buy online for adults, kids, and babies in 2021.
However, I also encourage you to check out the buyer’s guide to learn how to spot a mattress that contains fibreglass for yourself.
And please do drop your questions and thoughts in the comments section at the end of this review and I’ll get back to you ASAP.
8 Best Mattresses Without Fiberglass Reviewed
The best mattress without fiberglass that you can buy online in 2021 is the Eden Sleep Organic Mattress because, in addition to being completely free from fiberglass and other harmful chemicals, it’s much more affordable than other organic mattresses.
However, if you’re looking for more specific requirements – such as a memory foam mattress, a vegan mattress, or a mattress for your child – then check out the other entries in this list.
Click any of the red ‘check price’ buttons to check for discounts and to buy directly from the mattress company’s website.
1: Eden Sleep Organic Mattress – Best Overall (NEW for 2021)
I have chosen the Eden Sleep Organic Mattress as the best fiberglass free mattress to buy online in 2021 because this toxin-free mattress does NOT contain fiberglass, pesticide residues, or high VOC chemicals.
Instead of fiberglass, Eden’s fire barrier is made from 100% natural New Zealand wool to meet flammability standards without risking your health.
The following screenshot of the email that I received from Eden’s customer support confirms that the Eden mattress does NOT contain fiberglass:
Furthermore, the use of hypoallergenic materials like natural latex and organic cotton means that the Eden is perfect for sensitive sleepers and those with issues like dust mite allergies because the mattress is less likely to harbor allergens and cause irritation.
Beyond these special features, the qualities of the Eden makes this mattress suitable for just about everyone – including front, back, side, and combination sleepers (both as single sleepers and couples alike).
The Eden is already very well priced for a mattress of this quality, but if you click the button below you can get a further $200 OFF your new Eden mattress when you buy through that link now.
- Type: organic hybrid spring-latex mattress.
- Firmness: medium-soft (with optional pillow top for extra comfort).
- Thickness: 13 inch profile.
- Materials: organic cotton, natural NZ wool, Dunlop latex foam, steel coils.
- Side sleepers – the Eden mattress is ideal if you’re a side sleeper because the medium-soft firmness and natural Dunlop latex combine to create a sleep surface that adapts to the contours of your body to allow your hips and shoulders to sink more deeply into the materials for reduced pressure and enhanced comfort. You can also get the Eden with a pillow top for even more cushioning if you want maximum pressure relief.
- Lighter weighted sleepers – if you weigh less than 150 lbs then the Eden is ideal for you because the medium-soft feel and adaptive latex foam allows you to sink more deeply into the materials to help dissipate the pressure inside your joints so that you’ll feel more comfortable when compared to sleeping on a firmer mattress that would otherwise increase pressure in your joints. Adding the pillow top can maximize pressure dissipation if you’re a lighter weighted sleeper.
- Skinny sleepers – the Eden mattress is ideal if you have a lower body fat percentage because the medium-soft firmness works with the Dunlop latex to help dissipate the pressure on the more prominent regions of your body like your elbows, knees, shoulders, and rib cage. The pillow top option can once again maximize this pressure-relieving capability by adding a greater depth of material cushioning.
- Back sleepers – if you sleep on your back then the 8 inches of coils will help to keep you in good posture whilst the latex adapts to the contours of your body to help avoid pressure point based back pain.
- Front sleepers – if you’re a front sleeper under 230 lbs then the coils, latex, and firmness of the Eden should be sufficient enough to keep your hips supported and your spine correctly aligned whilst also softening the pressure points on your ribs.
- Restless and combination sleepers – if you tend to toss and turn at night then the latex in the Eden’s comfort layer can help to soften the pressure points that could be causing you to wake up and move around; whilst the bounce of the springs and the responsiveness of the foam gives you the buoyancy to switch positions effortlessly when you do need to move around.
- Edge sleepers – the edge-to-edge coils in the support core and the reinforced edges means that the edge of the mattress won’t compress as readily as an all-foam mattress might. So if you’re an edge sleeper that sleeps closer to the edge of the bed then you’ll feel well supported and less like you’re going to roll out.
- Sleepers with allergies – if you have allergies, sensitive skin, or conditions like asthma then the Eden could be the ideal mattress for you because it’s made from hypoallergenic materials, doesn’t contain pesticide residues, is fiberglass free, has a non-toxic fire barrier, and is free from high VOC chemicals that might otherwise cause irritation or an allergic reaction.
- Warmer sleepers – the breathability of the latex and aeration provided by the coil core means that the Eden is able to dissipate your body heat to help regulate your temperature very well if you tend to sleep warm.
- Sweaty sleepers – the organic cotton cover and natural New Zealand wool creates a breathable sleeping surface that’s also able to wick away moisture to help you stay cool and dry if you suffer from night sweats.
- Heavy weighted front sleepers over 230 lbs – if you are a stomach sleeper over 230 lbs then you may find that the medium-soft firmness isn’t enough to stop your lower back from arching. In which case the best alternative is the luxury firm version of the Idle Latex Hybrid mattress because the extra surface tension can help to maintain good posture.
- 18 month home trial – the Eden mattress comes with an industry-leading 18-month trial which means that you can try this mattress for 1.5 years and return it if you’re not happy for a FULL refund.
- Lifetime warranty – Eden’s Warranty Without End™ means that defective mattresses will be repaired or replaced for as long as you own the mattress. This even covers indentations, body impressions, and sagging greater than 0.5 inches (whereas most warranties only cover dips over 1-1.5 inches).
- Affordable organic mattress – organic mattresses typically cost several $1,000s but the Eden offers high-quality organic materials at an affordable price so that you can sleep in a non-toxic and healthy mattress without breaking the bank.
- Optional pillow top – the Eden gives you the option of adding a pillow top so that you can avail of an extra 2 inches of natural latex to help increase pressure relief (ideal for side sleepers and lighter weighted sleepers under 150 lbs).
- Get $200 OFF – if you click the button below you can get $200 OFF your new Eden mattress purchase for a limited time only.
2: Naturepedic EOS Classic – Ideal for Couples
Naturepedic do not use flame retardant chemicals in their mattresses.
Instead, they meet flammability standards by using a combination of organic wool, organic cotton fabric, organic cotton batting, and plant-based non-GMO PLA batting rather than using a flame barrier soaked in chemicals.
This means that there’s no fiberglass or other potentially harmful or undesirable chemicals found in Naturepedic’s mattresses such as antimony, modacrylic, respirable crystalline silica, boric acid, or rayon.
Furthermore, Naturepedic’s mattresses have been certified by MADE SAFE® – which means that the mattresses do not contain harmful ingredients or release vapors, gases, or by-products that could harm human health (view certificate).
More specifically, the MADE SAFE® certification means that the mattress has been screened for carcinogens, fire retardants, heavy metals, neurotoxins, harmful VOCs, and more.
Moreover, the EOS Classic mattress has some of the most highly regarded certifications such as the GOTS, GOLS, and GreenGuard certifications to ensure that you’re sleeping on a mattress that’s non-toxic and healthy for you.
Beyond this, the EOS Classic Organic Mattress can be customised to suit your sleeping style and preferences.
This means that the EOS is perfect for single sleepers, but also for couples especially – since you can choose to have different firmnesses on each half of the mattress if you and your partner have different preferences.
Click the button below to check the price of the EOS and buy it now directly from Naturepedic – or see below for more details.
- Hybrid spring-latex – 3″ GOLS certified organic latex comfort layer with 8″ encased coil support core and an organic cotton and wool quilt with PLA padding for added moisture wicking to keep you cool and dry.
- 12 inch profile – deeper profile for greater capacity for pressure relief and support.
- Split firmness options – choose from a uniform firmness or two different firmnesses in the queen, king, and Cal. king sizes.
- Side sleepers – the plush firmness option may be better for side sleepers under 230 lbs for added pressure relief on the hips and shoulders, whilst heavier weighted side sleepers may prefer a medium.
- Front sleepers – if you sleep on your front then the firmer options may suit you better to help keep your hips properly aligned to guard against back pain.
- Back sleepers – the medium level of firmness may suit you the best if you’re a back sleeper in the 130-230 lbs range, whilst firmer options might be preferable if you weigh more, and the plusher or cushioned-firm if you weigh less.
- Combination sleepers – the combination of responsive latex and support coils gives this mattress enough buoyancy to allow you to switch positions without getting bogged down in the materials – especially if you go for a firmer feel to increase the surface tension of the mattress.
- Edge sleepers – the reinforced edge support means that you can sleep close to the edge of the bed without risking roll-off.
- Skinny sleepers – the plush level of firmness allows for greater pressure relief and material sinkage to take the pressure away from your bones and joints.
- Couples – in addition to the split firmness option, the individually encased coils can help to reduce motion isolation so that you don’t wake each other up, whilst the reinforced edges allow you to make full use of the mattress area.
- Warmer sleepers – the porous latex and the coil core combine to allow for excellent airflow to help regulate your temperature and keep you cool.
- Sweaty sleepers – the PLA layer near the cover is made from non-GMO sugarcane that wicks away moisture to help keep you dry.
- Allergy sufferers and sensitive sleepers – the lack of toxic chemicals and potentially anti-fungal qualities of the organic latex makes the mattress less likely to trigger asthma symptoms, airway irritation, and skin irritation.
- Higher cost – with this being an organic mattress, you might want to go for the 0% APR financing option to help make this mattress more affordable for you.
- Ships to Canada as well as the USA – making it one of the best mattresses that you can buy for Canadians.
- Swap the layers yourself – you can unzip this mattress (with no fiberglass to worry about) and switch the layers of the mattress around yourself to adjust the comfort preferences for years to come.
- Multiple organic and safety certifications – including GOTS, GOLS, GreenGuard, and MADE SAFE®.
- 20 year warranty – 10 year non-prorated, years 11-20 are graded prorated (50% in year 11, with a 5% decrease thereafter).
- Free shipping and returns – for continental US regions only.
- 90 night sleep trial – return your mattress inside the 30-90 day trial period if needed.
- Pay on 0% APR – financing options available to make your mattress more affordable (click the button below for more details).
3: The Idle Latex – Best Sleep Trial (18 Months!)
I personally contacted Idle Sleep and asked them if their mattresses contain fiberglass.
And I was told that the Idle Latex mattress does not contain fiberglass and that the Dunlop version is made with all-natural materials.
More specifically, the fire barrier is made from wool, the cover is organic cotton, and the foam is made from pure latex serum that’s eco-friendly and certified as organic by GOLS.
And I’ve included this model in this list of the best fiberglass free mattresses because it comes with one of the longest sleep trials that I’ve seen to date – allowing you to return the mattress within 18 months if you don’t like it.
Furthermore, this hybrid spring-latex mattress comes in a range of firmnesses: medium, luxury firm, or medium on one side and firm on the other (dual sided).
You can also choose the Dunlop latex option if you need more support or the Talalay latex option if you’re a side sleeper and/or need more pressure relief and would like to sleep cooler.
- Front and back sleepers – the Dunlop and firmer levels of firmness might be better for you if you need more support and greater surface tension to keep your hips better aligned to guard against back pain.
- Side sleepers – the Talalay latex option with the medium level of firmness is likely to be the best option if you’re a side sleeper to get the required pressure relief on your hips and shoulders.
- Combination sleepers – the greater surface tension afforded by the medium and firmer feel plus the denser Dunlop latex makes this a good mattress if you switch positions often during the night because the material won’t bog you down.
- Edge sleepers – reinforced coils in the edge of this mattress helps to guard against sagging and roll off.
- Caution for lighter weighted side sleepers – if you’re a side sleeper under 150 lbs and have a skinny body type then the generally firmer feel might not be to your liking; even with the pressure relief afforded by the Talalay latex and medium firmness combination.
- Multiple organic and natural certifications – including GOLS and CertiPUR-US® (CertiPUR-US® ensures that the mattress is free from harmful chemicals like formaldehyde and that VOCs are minimised to an acceptable level of fewer than than 0.5 parts per million).
- 18 month sleep trial – return your mattress for a full refund within 30 days to a year and a half of buying if required.
- Lifetime warranty – covers body impressions too.
- 0% APR – pay on finance to increase affordability.
4: Natural Bliss – Best Vegan Mattress
If you need a mattress that doesn’t contain fiberglass and is also vegan then the Natural Bliss from Plush Beds is likely going to be the best mattress for you.
Because this mattress doesn’t contain wool or any other products derived from animals.
Instead, the patented Eco Fire Barrier is made from natural plant fibers, whilst the rest of this all-latex layered mattress consists of natural latex and a GOTS certified organic cotton cover to minimise toxins even more.
This mattress is available in soft, medium, medium-firm, and extra-firm – making it suitable for just about every sleeping position as well as for couples too.
- Side sleepers – the soft level of firmness is likely the best level of firmness to provide pressure relief on your hips and shoulders.
- Front and back sleepers – the medium and firmer firmnesses are likely going to be better if you sleep on your front or back to help maintain proper hip alignment and posture.
- Couples – the all-foam design can help to absorb motion transfer better than a spring mattress might so that you don’t disturb each other as you move around.
- Latex allergies – if you have an allergy to natural latex then this might not be the mattress for you because I wasn’t able to find out if this mattress has been stripped of the problematic latex proteins (unlike the Beausommet which has the latex proteins removed).
- Massive range of organic and eco-friendly certifications – including GOTS, USDA, GreenGuard Gold, Oeko-Tex Standard 100, eco-INSTITUT, and Forest Stewartship Council.
- Toxin free – no mercury, lead, heavy metals, CFCs, chloroform, cyanide, or PBDE flame retardants.
- 100 night sleep trial – full refund available.
- 25 year warranty – better than the 10 year industry average.
- Pay on 0% APR – click the button below to learn more.
5: Amerisleep AS Range – Best Memory Foam Mattresses
Memory foam mattresses are the most likely to contain fiberglass and a host of other unwanted chemicals.
So tracking down a high quality, fiberglass free memory foam mattress took me a long time.
However, I was specifically told by an Amerisleep customer service representative that none of Amerisleep’s memory foam or hybrid mattresses contain fiberglass – with my deeper research yielding no conflicting claims.
Amerisleep’s AS range consists of 5 mattresses that cater to every type of sleeping position.
The medium firmness of the AS3 is likely going to be suitable for most sleepers in the 130-230 lbs range with the AS1, AS2, AS4, and AS5 offering different firmnesses for other sleeping preferences.
The hybrid range may be better for you if you want to minimise memory foam content and guard against sinkage/sag.
- Front, back, and side sleepers – the AS3’s medium firmnesses will suit most average weighted sleepers.
- Stomach and back sleepers – the AS1 or AS2 might be more suitable for you if you need a firmer mattress to guard against back pain.
- Side and lighter weighted sleepers – the added softness of the AS4 or AS5 might be better for you if you’re a side sleeper or a sleeper under 150 lbs that requires deeper material compression and pressure relief.
- Heavier weighted sleepers – Amerisleep’s mattresses can accommodate sleepers over 230 lbs but the added firmness of the AS2 (or even the AS1 if you’re very heavy) might be better because the added firmness can guard against sinkage/sag even more.
- Couples – the all-foam design and lack of springs makes for a quiet mattress that dampens movements very well.
- Smell – even with the Bio-Pur® foam and the CertiPUR-US® certification that ensures certain toxins are eliminated and that VOCs are kept to acceptable levels, you should expect a ‘new’ smell when you unbox your mattress due to the petroleum-based nature of the memory foam.
- Warmth – although Amerisleep’s mattresses will typically sleep cooler than most other memory foam mattresses due to their designs, they probably won’t sleep as cool as latex and hybrid spring-latex mattresses.
- Bio-Pur® foam – open celled design to aid with cooling and is made with plant based material to limit the amount of chemicals in the mattress.
- CertiPUR-US® certified – to ensure VOCs are minimised and toxins like formaldehyde are absent.
- Affordable – some of the models of the AS memory foam range cost less than 50% of some of the other mattresses on this list (click the button below to see the exact pricing).
6: Naturepedic Organic – Best for Babies and Kids
If you’re looking for a fiberglass-free mattress for your baby or child then the best ones that I could find came from Naturepedic.
Because they have a range of fiberglass free crib mattresses that are wipe-clean, with the Breathable and Breathable Ultra models providing removable washable surfaces too.
The kids fiberglass free 2-in-1 mattress is suitable for bunk beds, platform beds, and trundles – whilst the Verse has an upgraded support system that’s well suited to young children and older kids.
Click the buttons below to learn more.
7: GhostBed 3D Matrix® – Best Cooling Mattress
If you’re a hot sleeper, the best fiberglass-free cooling mattress is the GhostBed 3D Matrix® because this 12-inch hybrid mattress allows air to flow through the coil core for maximum breathability, whilst the patented thermal conductive gel polymer helps to dissipate heat, and the Ghost Ice Cooling Cover works with the cooling gel memory foam comfort layer to make the mattress cool to the touch.
I contacted GhostBed directly to find out if their mattresses contain fiberglass or not and the response was that whilst the GhostBed Original MIGHT contain fiberglass, the GhostBed Flex, GhostBed Lux, and GhostBed 3D Matrix mattresses do NOT contain fiberglass:
- Sleepers with back pain – the GhostBed 3D Matrix® has reportedly helped some GhostBed customers alleviate their lower back pain, thus potentially making the GhostBed 3D Matrix® a good mattress for combating back pain.
- Side sleepers – the plush firmness allows for more pressure relief on your hips and shoulders for contoured comfort.
- Lighter weighted sleepers – if you’re under 150 lbs then the softer firmness allows you to sink more into the mattress materials so that your body weight is more evenly distributed and the pressure is moved away from your joints and more angular regions of your body.
- Restless/combination sleepers – if you tend to toss and turn at night then the adaptive memory foam can help to soothe the pressure points that may be causing your restlessness, whilst the individually wrapped coils work with the Ghost Bounce Layer to ensure that you can move around easily in the mattress without getting stuck in the materials.
- Edge sleepers – the reinforced Spirited Edge™ support makes the GhostBed 3D Matrix® ideal if you tend to sleep closer to the edge of the bed because it prevents roll-off and sagging.
- Couples – if you sleep as a couple then the foam and individually encased springs do a great job at dampening movements so that you can both sleep undisturbed.
- Heavy weight front sleepers – if you weigh more than 250 lbs and you sleep mostly on your front then you might prefer the medium-firm feel of the GhostBed Original mattress for more support to help keep your hips aligned and free from back pain.
- 101-night sleep trial – more than 3 months to try out the GhostBed 3D Matrix® to ensure that you’re happy with it.
- Works with most frames – the GhostBed 3D Matrix® works with boxspring foundations, slatted frames, and adjustable bases.
- Mattress in a box – the GhostBed 3D Matrix® arrives in a compressed box to make moving the mattress to your sleeping space easier.
- Pay monthly – apply for 0% APR financing with Affirm at the checkout to spread the cost without the interest to increase affordability.
- Discounts available – buy the GhostBed 3D Matrix® mattress through the button below to save between $525 (twin xl) and $1050 (split king) depending on the size that you order for a limited time only.
8: SweetNight Twilight – Cheapest Fiberglass Free Mattress
If the other mattresses on this list are too expensive for you then the cheapest fiberglass free mattress that I could find is the Twilight hybrid mattress from SweetNight.
Now, just to be clear, I checked with their customer support and the MEMORY FOAM mattresses from SweetNight DO contain fiberglass – but the hybrid versions do NOT contain fiberglass (which means that you’ll be ok with the Twilight, Island, and Ocean Blue models).
In terms of the mattress itself, I feel that it should suit a wide range of sleepers including front sleepers, back sleepers, side sleepers, couples, and combination sleepers.
And due to its qualities and affordability, I rated it as the top mattress out of all of SweetNight’s options – see my full SweetNight mattress reviews page for more details.
Or see the summary below and use the button to click through to the sales page and order this mattress now.
- Side sleepers – the gel infused memory foam combines with the coils to provide a blend of pressure relief and support in the side sleeping position.
- Front and back sleepers – the slightly firmer bias and adaptive coil support core can help to maintain good posture when sleeping on your front or back.
- Edge sleepers – the edge to edge support can help to guard against roll-off and sagging when you sleep closer to the edge of the bed.
- Restless sleepers – the memory foam can help to alleviate the pressure points that can otherwise contribute to frequent waking, whilst the buoyancy of the coils can make it easy to switch positions without getting bogged down in the materials.
- Heavier weighted sleepers – the steel coils can help to support weights in excess of 230 lbs and guard against excessive sinkage.
- Couples – the foam and individually wrapped coils can help to dampen movements so that you can each sleep undisturbed.
- US only – you can only order this mattress in the US.
- CertiPUR-US® certified – to ensure that the mattress is free from toxic chemicals and that VOCs counts are kept to less than 0.5 parts per million to reduce off gassing (smells).
- 10 year warranty – covers you against defects for extra peace of mind.
- 100 day refund policy – get a full refund if you’re not happy with your mattress.
- Super cheap – the Twilight is one of the best mattresses for the money relative to the quality that you’re getting.
Fiberglass Free Mattress Buying Guide
So what is fiberglass and why is it found in some mattresses?
Fiberglass is a type of reinforced plastic that’s made from a range of natural minerals and manufactured chemicals (like silica sand, soda ash, limestone, alumina, borax, and feldspar ) and is used by some manufacturers in their mattresses as part of their fire barrier in order to meet flammability standards.
However, in the case of mattresses, rather than taking the form of an obvious solid sheet of plastic, the fiberglass is integrated more subtly.
More specifically, the fiberglass is typically infused or woven into the inner mattress cover – hidden from view – where most people will never realise that they are sleeping on a type of material that in certain forms can cause eye redness, inflammation of the nose and throat, and aggravation of pre-existing conditions like asthma and bronchitis .
Most people only become aware of the fiberglass in their mattress when they innocently unzip the cover for washing purposes – or a hole develops in the cover.
At which point, the room is filled with tiny shards of fiberglass that contaminate the surrounding bedding, furniture, and carpets – even working their way into the air conditioning where these glitter-like particles can spread through the entire house.
Whilst manufacturers often state on the label of the mattress not to remove the cover, many users don’t realise the potential severity of doing so in a mattress that contains fiberglass.
Because as the video below explains in more detail, whilst the Consumer Products Safety Commission sated that they are not aware of any health risks associated with the type of fiberglass used in mattresses (which is apparently different to the fiberglass used in insulation), several families report experiencing a reaction to the fiberglass that contaminated their home as a result of removing the cover of a fiberglass containing mattress.
At 3:05, you can see how one family actually had to move out of their home due to the impact the fiberglass had on their children’s health, whilst another victim states clearly that ‘his face is burning’ as a result of coming into contact with the fiberglass particles having removed the mattress cover:
1: Learn How to Avoid Mattresses With Fiberglass
The mattress brand that seems to come up over and over again in these fiberglass horror stories is Zinus.
However, there are many more brands that also use fiberglass in their mattress covers.
The table that I’ve included further down the page lists some of the brands that are known or highly likely to contain fiberglass.
However, this table is non-exhaustive and there are some shady tricks that mattress manufacturers pull to try and avoid saying explicitly that their mattresses contain fiberglass.
So here’s a list of the 6 steps that you should take to find out if a mattress has fiberglass in it.
1.1: Learn the Alternative Terms
Here’s some of the terms that if you see them mentioned on the label/law tag or in the product description means the same thing as fiberglass:
- Glass wool.
- Glass fiber.
- GFK (German for ‘Glasfaserverstärkter Kunststoff’).
1.2: Be Aware of Other Harmful Substances
Depending on the type of mattress, there are many other chemicals that could potentially be present in varying amounts that you’ll want to avoid.
Some of the most notable ones include:
- Modacrylic – a controversial flame retardant that some say may cause skin irritation  and others say could be a carcinogen .
- Antimony – a toxic heavy metal often used as a flame retardant in the fire barriers of some mattresses which has been shown to irritate the eyes, skin, and lungs .
- Formaldehyde – sometimes found in the glues of cheap memory foam mattresses and is thought to be carcinogenic .
One component found in the fire barriers of some mattresses that causes confusion is silica.
Because whilst inhaling crystalline silica can lead to fatal diseases like silicosis, lung cancer, and chronic obstructive pulmonary disease (COPD) , the version of silica found in mattresses is amorphous silica which is widely regarded as non-carcinogenic .
However, a report from the CDC sates that even though amorphous silica is considered to be of ‘low toxicity’, inhalation of amorphous silica can irritate the eyes and may be harmful to the body when exposure is prolonged .
And critically, the same report says that ‘pure amorphous silica is rarely found’ and ‘usually contains some amount of crystalline silica’.
The bottom line is that whilst discovering that your mattress contains silica (usually in the inner cover as a fire barrier) doesn’t automatically denote toxicity – it could be a cause for concern depending on the manufacturing process.
1.3: Check the Label, Product Description, and Reviews
So how do you actually go about finding out if your mattress contains fiberglass or not?
If you already have the mattress or are looking at it in the store then you should look at the law tag.
Here, it should state if the mattress contains fiberglass and the percentage amount (‘glass fiber’ and ‘glass wool’ are the same as fiberglass).
The label may also say if the mattress contains modacrylic or silica.
For example, going back to the video I posted earlier, you can see that this law tag sates that the mattress in question contains 62% fiberglass, 30% modacrylic fiber, and 8% cotton:
Another ‘clue’ that the mattress contains fiberglass is when the tag or FAQ page of a mattress manufacturer says that ‘the cover must not be removed’.
But what if you can’t see the law tag?
Then you can reach out to the manufacturer or retailer and ask them if their mattress contains fiberglass or not.
If they try to fob you off with a copy and paste answer saying that ‘all mattresses are designed to meet flammability standards and blah, blah, blah’ then you need to keep pushing.
(I got this response a lot when I was researching for mattresses that don’t contain fiberglass).
Ask them specifically about the fiberglass – if they continue to avoid giving a direct answer then move on and don’t buy from them.
Alternatively, you can scour the FAQ pages, product description, and customer reviews for mention of fiberglass.
1.4: Check the Components of the Fire Barrier
Fiberglass is used as part of the fire barrier so if the customer service is being evasive you can ask them what their fire barrier is made out of.
If you go for an organic mattress then the fire barrier is often made out of wool and is unlikely to contain fiberglass.
1.5: Look For Quality Certifications
Whilst certifications alone are not enough to conclude that the mattress doesn’t contain fiberglass, going for an organic mattress is a good way to minimise the chance of encountering fiberglass.
Also, going for an organic mattress can also help to lessen the likelihood of sleeping on a mattress that contains toxic chemicals that won’t be disclosed on the law tag like formaldehyde.
However, trying to find a truly organic mattress is another headache in itself because there’s no clear way to check that a mattress is certified as organic and that the manufacturer isn’t trying to use ‘green-washing’ claims to mislead you.
Instead, you’ll want to look for a mattress that has some or all of the following certifications:
- USDA Organic – can indicate that the mattress contains 95% organic materials.
- GOLS (Global Organic Latex Standard) – certifies that the latex product contains at least 95% organic material.
- GOTS (Global Organic Textile Standard) – certifies that the product contains at least 70% organic fibers.
Outside of these organic certifications, you should look for the following certifications to confirm that toxic chemicals like formaldehyde are absent, and that VOC (volatile organic compound) emissions have been minimised to an acceptable standard.
- OEKO-TEX Standard 100 – this certification means that the entire product has been labelled as ‘harmless in human ecological terms’.
- CertiPUR-US – this certification means that the poly-foams used in the mattress do not contain certain harmful substances like formaldehyde and has minimal VOCs.
- Eco-Institut – this means that the mattress has been evaluated and labelled as having low-emissions and low-pollutants.
- GREENGUARD and GREENGUARD Gold – these certifications mean that the mattress has been tested and has met strict guidelines for chemical emissions.
1.6: Look for the Common Red Flags
The points below are not a definite indication that your mattress will contain fiberglass, but they are warning signs that are commonly associated with mattresses that contain fiberglass and are more likely to have toxic chemicals in them.
Many of these red flags can occur concurrently.
- Made in China – mattresses that are made in China are known for having fiberglass in them although this isn’t a guarantee.
- Made out of poly-foam/memory foam – mattresses that contain or are made exclusively from cheap poly-foams are the most likely to contain toxic chemicals and fiberglass.
- Costs less than $600 – budget mattresses (often found on popular online retail sites) may be packed with cheap fillers, toxic chemicals, and could contain fiberglass.
- Is a bed-in-a-box – whilst there are many high quality bed in a box mattresses, the rise of the direct to consumer business model means that there are lots of online only mattresses companies that compress their mattresses into a box and cut corners elsewhere to keep costs down – which may also include using fiberglass.
Which Mattresses Contain Fibreglass?
Trying to find a mattress that doesn’t contain fiberglass on your own is a lot of hard work.
So if you’ve got your eye on a particular mattress brand but you’re worried about it containing fiberglass then check out the table below.
Where I went ahead and asked the manufacturer/customer service of several mattress brands if their mattresses contain fiberglass and combined this with the anecdotal reports from several mattresses users.
In some cases, my deeper research yielded results that went against the grain of the other claims out there.
For example, I discovered that Nectar’s mattresses DO contain fiberglass (as confirmed by customer support) – which is contrary to the other findings:
Where anecdotal reports conflicted with the information derived from customer support – or my findings were based exclusively on customer reports – I have used more cautious language in the table below.
|Brand||Contains Fiberglass?||Source of Claims|
|Best Price Mattress||Probably||Customer reviews|
|Dreamfoam Bedding||Unlikely||Customer support|
|Layla||Yes (spun fiber not exposed)||Customer support|
|Idle Sleep||No (Idle Latex)||Customer support|
|Nectar||Yes (layered – not woven)||Customer support|
|Puffy Lux Hybrid||Yes (but deeply embedded)||Customer support|
|Purple||Yes (but deeply embedded)||Manufacturer’s site|
|Sweetnight||Some (memory foam beds)||Customer support|
|Tuft and Needle||Unlikely||Customer support|
|Zinus||Yes (all)||Manufacturer’s label|
2: Choose the Right Level of Firmness
Even if you’ve found a mattress that’s fiberglass free, it’s not going to be much use to you if it’s uncomfortable for you.
Comfort is highly subjective and depends on how your preferred sleeping position, body weight, and body shape interacts with the materials and construction of the mattress – as well as the ‘firmness’ of the mattress.
Firmness is something that you often have control over – you can opt for soft, medium, firm, and variations in between like medium-soft and medium-firm.
In rarer cases, you may be able to order your mattress in extra-soft or extra-firm.
Here’s a summary that will help you find the best type of mattress firmness for your sleeping style.
- Soft – softer mattresses are typically better for side sleepers because they allow your shoulders and hips to sink further into the mattress to remove pressure on these areas. If you weigh more than 230 lbs then you may prefer a medium-soft or even a medium because your greater body weight will naturally cause deeper sinkage. if you weigh less than 150 lbs then a soft mattress might be better for you regardless of the position so that you can sink more into the materials and remove the compression forces on your joints.
- Medium – most front and back sleepers in the 130-230 lbs range will be comfortable in a medium firmness mattress; as will some side sleepers along with combination sleepers that tend to shift positions often during the night.
- Firm – firm mattresses are typically preferred by front sleepers who need more hip support to guard against back pain and heavier sleepers over 230 lbs that want to sink into the mattress less.
3: Check the Level of Support
Whilst mattress firmness is variable – support is non-negotiable.
That is, a mattress either supports your spine and joints properly or it doesn’t.
I would recommend going for a mattress that’s no thinner than 8 inches, with a preference for 10 and 12 inch mattresses for sleepers over 230 lbs to provide the sufficient capacity for material compression and support.
Whilst firmness is primarily influenced by the upper comfort layers, the support is dictated by the lower support core.
The best types of support cores are typically those with individually wrapped coils because they adjust to your body shape and reduce motion transfer better than mattresses with a fused spring core typically can.
Mattresses with a Dunlop latex core are also able to provide very good support, as are many high quality memory foam mattresses that use a denser poly-foam support core.
The worst mattresses for providing good support are typically cheap, low-density poly-foam mattresses that are 8 inches thick or thinner (and are also likely to contain fiberglass if they are made in China).
Support is critical if you’re a heavier-weighted sleeper over 230 lbs – look for a spring or hybrid bed with a high coil count (400-1000+ for a queen) and that uses individually wrapped coils, or an all-latex mattress that has a high density Dunlop latex support core.
4: Finalise Your Secondary Preferences
Beyond the firmness and support, you’ll want to take into consideration the following secondary preferences to ensure the maximum amount of comfort.
- Sleeping cool – if you’re a warmer sleeper then spring, hybrid, and latex mattresses are your best option because they have superior ventilation when compared to all-foam mattresses. And whilst many modern memory foam mattresses are infused with cooling gel, gel beads, and have corrugated foams, memory foam is typically known for increasing body heat and are best avoided if you are a hot sleeper.
- Allergy control – if you have respiratory allergies, asthma, or sensitive skin then in addition to avoiding fiberglass you’ll want to look for a mattress that has a hypoallergenic cover to reduce the chance of a reaction and to inhibit dust mite penetration. If you have a wool allergy then go for a vegan certified mattress, whilst those with allergies to natural latex should contact the manufacturer to ensure that the offending proteins have been removed from the latex.
- Edge support – if you’re the type of front sleeper that hugs the edge of the bed or you sleep as a couple that likes to spread out, then you’ll need a mattress with good edge support. Many hybrid and spring beds have good edge support on their own, but you should look for firmer coils around the perimeter; whilst all-foam mattresses will usually require higher density foam along the edges to guard against excessive compression and roll-off.
- Adjustments for couples – if you sleep as a couple then you’ll need a quiet mattress that doesn’t conduct movement easily. All-foam and all-latex mattresses are typically the best at doing this, whilst spring and hybrid beds with individually wrapped coils are typically superior to fused coil cores when it comes to stopping your bed partner from waking you up as they get into bed and shuffle around. If you each require different firmnesses, then going for a split firmness (as per the Naturepedic model listed above) can work better than a mattress with a single firmness.
5: Protect Your Money
Now that you’ve got all of the core criteria by which you can potentially identify your ideal mattress, the final step is to protect yourself from ending up out of pocket.
Here’s what you need to consider.
- A minimum sleep trial of 30 days – even with the help of guides like this, it’s still possible that you could end up with a mattress that’s not comfy. So you should look for a mattress that offers a minimum of a 30 day sleep trial – since it can take up to a month or more for your mattress to adjust to your body type and dominant sleeping position. Look for free shipping and returns so that you’re not left out of pocket if you have to return your mattress.
- 10 year non-prorated warranty – most mattresses last around 5-7 years. But you’ll want to cover yourself with a warranty that’s either entirely non-prorated or has graded non-prorated coverage to ensure that you’re not left shelling out excessively if you end up with a defective mattress.
- Financing – if you want to avoid fiberglass then the best step that you can take is going for an organic mattress. However, these types of mattresses can be expensive – so look for 0% APR financing options to increase affordability.
- Ordering online vs in store – you can save a lot of money by shopping online and a generous sleep trial is typically a better safeguard against discomfort than simply lying on the mattress in the store for 5 minutes (which is too short a time frame to accurately gauge comfort levels).
Here are the answers to some of the most common questions related to fiberglass and mattresses.
What Should I Do if Fiberglass is Released Into the Room?
If you’ve completely removed your mattress cover or fiberglass is escaping through a hole then ideally, you should encase the mattress in plastic wrapping to prevent further release and then remove the mattress from your house. Completely removing the escaped fiberglass particles from your house can be difficult and may require the help of a professional cleaning company.
How Do You Clean a Mattress That Contains Fiberglass?
If you’ve looked at the law tag on your mattress only to discover that it contains fiberglass, then you absolutely must NOT remove the cover. In which case you should spot clean your mattress cover. Better yet, purchase a mattress protector to make cleaning easier and limit the chance of the cover tearing and releasing fiberglass particles.
Who Makes the Best Fiberglass Free Mattresses?
The best fiberglass free mattresses is made by Eden Sleep because the mattress is non-toxic and very well priced.
Click the button below to get $200 OFF your new Eden mattress now.
Sources and References
 Wikipedia – Fiberglass. Accessed 4/7/20.
 Mesothelioma.net – Fiberglass Connection to Mesothelioma. Accessed 4/7/20.
 Strobel – Modacrylics. Accessed 4/7/20.
 PubMed – Toxicology and Carcinogenesis Studies of Acrylonitrile (CAS No. 107-13-1) in B6C3F1 Mice (Gavage Studies). Accessed 4/7/20.
 NCBI – The Exposure to and Health Effects of Antimony. Accessed 4/7/20.
 Cancer.org – Known and Probable Human Carcinogens. Accessed 4/7/20.
 Silica-Safe.org – What Are the Health Effects [Of Silica]? Accessed 4/7/20.
 PubMed – Health Hazards Due to the Inhalation of Amorphous Silica. Accessed 4/7/20.
 CDC (Centers for Disease Control and Prevention) – Occupational Health Guideline for Amorphous Silica. Accessed 4/7/20.
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Dan is the founder and head content creator at Bedroom Style Reviews.
He has been working as a professional online product reviewer since 2015 and was inspired to start this website when he ended up sleeping on a memory foam mattress that was too soft and gave him backache.
Through in-depth research and analysis, Dan’s goal with this website is to help others avoid such pitfalls by creating the best online resource for helping you find your ideal mattress, bedding, and bedroom furniture.
Dan is a qualified NVQ Level 2 Fitness Instructor with 6 years’ experience helping clients improve their health through diet, exercise, and proper sleep hygiene.
He also holds several college and university-level qualifications in health sciences, psychology, mathematics, art, and digital media creation – which helps him to publish well researched and informative product reviews as well as articles on sleep, health, wellbeing, and home decor.
Dan also has direct personal experience with insomnia, anxiety, misophonia (hypersensitivity to sounds), and pain from both acute and long-standing sporting injuries – he enjoys writing insightful articles around these subjects to help fellow sufferers of such conditions.
Learn more about Dan here.