Best Mattress Without Fiberglass 2024

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Overall Best Mattress Without Fiberglass – Zoma Boost

Best Mattress Without Fiberglass for Side Sleepers – Saatva Classic

Best Motion Isolation Mattress Without Fiberglass – AS3

Best Organic Mattress Without Fiberglass – Birch Natural

Best Budget Mattress Without Fiberglass – Bear Original

Key Takeaways

  • Material Composition: Look for mattresses made from fiberglass-free materials such as organic cotton, natural latex, or CertiPUR-US certified foam to ensure safety and comfort.
  • Certifications: Prioritize mattresses with certifications like OEKO-TEX Standard 100 or GREENGUARD Gold, indicating that they are free from harmful substances, including fiberglass.
  • Customer Reviews: Pay attention to reviews from verified buyers to ensure that the mattress you choose does not contain fiberglass and meets your comfort and safety requirements.

Fiberglass use is common in mattresses for safety reasons. If there were ever a fire in your home, the fiberglass prevents your bed from going up in flames so you can escape.

While fiberglass is important for safety’s sake, it can irritate your body and lungs. And if your mattress were to tear, fiberglass can get all over your bedroom and it’s very difficult to clean.

But, not all mattresses contain fiberglass! While fiberglass is a common fire barrier, you can find beds with other fire barriers. Use our guide to find the best mattress without fiberglass to improve your sleep and health at night!


Overall Best Mattress Without Fiberglass

1. Zoma Boost

zoma boost
  • Price Range: $1749 - $2748
  • Made in USA: Yes
  • Motion Isolation: Absorbs motion giving you a comfortable sleeping experience
  • Available Sizes: Twin, Twin XL, Full, Queen, King, Cal. King, Split King
10 Years
Sleep Trial
100 Nights
Recommended For
  • Athletes seeking optimal recovery
  • Individuals who value durability and assurance
  • Sleepers desiring enhanced comfort and temperature regulation
  • Hyper Cooling for Optimal Recovery
  • Undisturbed Sleep with Motion Isolation
  • Targeted Support for Active Lifestyles

Zoma Boost claims the top spot on our list of the best mattresses without fiberglass, and it’s no wonder why our testers were unanimously impressed. From its remarkable motion isolation to its cutting-edge cooling features, Zoma Boost outshone all competitors in this category.

Crafted with an ultra-cool fabric cover, the Zoma Boost feels like a refreshing breeze against your skin, offering a stark contrast to the thick, heavy covers commonly found on other mattresses. But it’s not just about aesthetics; the Zoma Boost is engineered for comfort from the inside out.

The top layer boasts 2 inches of hypersoft foam, providing a luxurious, cloud-like comfort that envelops your body and melts away tension. Beneath that, graphite-infused memory foam deepens the mattress’s embrace while ensuring it remains cool throughout the night, catering to athletes’ need for restorative sleep.

The mattress’s transition layer, made of Reactiv™ foam, offers a responsive bounce that counteracts the sinkage of the top foams, facilitating easy movement across the bed. Meanwhile, the support core comprises motion-isolating pocketed coils that conform to your body’s contours, ensuring minimal disruption as you move during the night.

For individuals conscious about their health and environment, Zoma Sleep has the CertiPUR-US® certified foam layers guarantee peace of mind, assuring users of the mattress’s safety and minimal off-gassing.

In our evaluation, motion isolation emerged as a game-changer for those prioritizing uninterrupted rest. A tester shared, “I’m an active sleeper, but this Zoma product absorbed my movements seamlessly. No more waking up because of a partner’s tossing and turning – this mattress lets you move freely without disrupting your sleep or theirs.”

Hyper Cooling for Optimal Recovery: The Zoma Boost’s Hyper Cooling Memory Foam, infused with graphite, actively dissipates heat, ensuring consistent comfort and temperature regulation throughout the night – vital for aiding recovery during sleep.

Undisturbed Sleep with Motion Isolation: Testers were impressed by the Reactiv™ Foam’s superior motion absorption, allowing athletes to rest easy without disturbances, thereby supporting their physical well-being.

Targeted Support for Active Lifestyles: Zoma Boost’s Zoned Edge Coil Support provides durable and targeted support, aligning with athletes’ bodies during rest, crucial for recovery after intense workouts and maintaining peak performance.

Hyper Cooling Memory Foam: Infused with graphite, the memory foam actively dissipates heat, ensuring a cool and comfortable sleep environment throughout the night. Testers praised the refreshing feel of this advanced cooling technology.

Motion Isolation with Reactiv™ Foam: The Reactiv™ Foam not only absorbs motion but also provides responsive relief, preventing the feeling of being stuck in bed. Testers highlighted the exceptional motion isolation, allowing for undisturbed rest even if your sleep partner moves.

Durable Zoned Edge Coil Support: Zoma Boost incorporates Zoned Edge Coil Support, designed to keep sleepers balanced and promote proper spine alignment. Athletes appreciated the robust support, emphasizing the mattress’s durability and its positive impact on their sleep quality.

Advanced Cooling Cover: The mattress features an advanced cooling cover that contributes to uninterrupted slumber by regulating temperature. Testers found the cover to be supremely comfortable, enhancing the overall sleep experience.

Hyper Cooling Bliss: Experience a consistently cool sleep surface throughout the night, perfect for athletes seeking temperature-regulated comfort.

Responsive and Unrestricted: Enjoy a responsive surface that adapts to your movements, ensuring you never feel trapped, allowing for effortless shifts during the night.

Balanced Support: Benefit from balanced support designed to promote proper spinal alignment, enhancing recovery and overall sleep quality.

Comfort Beyond the Surface: Revel in an additional layer of comfort with the advanced cooling cover, contributing to a luxurious feel and an enhanced sleep experience.


  • Hyper Cooling Memory Foam: Enjoy a consistently cool sleep surface, perfect for athletes seeking temperature-regulated comfort.
  • Motion Isolation with Reactiv™ Foam: Experience minimal disturbances for undisturbed rest, crucial for recovering athletes.
  • Durable Support with Zoned Edge Coil Support: Benefit from balanced support designed to promote proper spinal alignment, enhancing recovery and overall sleep quality.
  • Advanced Cooling Cover: Enhance the overall sleep experience with an additional layer of comfort.
  • Free Shipping, 100Night Trial, and 10Year Warranty: Enjoy hassle-free shopping with a risk-free trial and a warranty, providing peace of mind for buyers.


  • Price: As a premium mattress, Zoma Boost comes with a higher price point, potentially limiting accessibility for budget-conscious shoppers.
  • Single Firmness Option: With a specific firmness level, it may not cater to individuals with preferences for extremely soft or very firm mattresses.
  • Heavy Weight: The mattress’s durable construction and advanced features contribute to its weight, making it challenging to move or rotate without assistance.

Best Mattress Without Fiberglass for Side Sleepers

2. Saatva Classic

saatva classic
  • Price Range: $974 $2079
  • Made in USA: Yes
  • Motion Isolation: Not one of the best features
  • Available Sizes: Twin, Twin XL, Full, Queen, King, Cal. King, Split King, Split Cal. King
Sleep Trial
365 Nights
Recommended For
  • Individuals seeking optimal recovery and restorative sleep.
  • Individuals who prioritize temperature regulation for a cool sleep environment
  • Those who are health and environment concious
  • Innovative Coil-on-Coil Construction
  • Customizable Firmness Options
  • Organic Cotton Cover

Saatva Classic mattress has proven to be a pinnacle of traditional innerspring comfort meticulously evaluated and celebrated by our discerning team of experts. With its innovative coil-on-coil construction, this mattress embodies timeless comfort and steadfast support, setting it apart from memory foam and hybrid counterparts.

Our team explored the Saatva Classic across three distinct firmness options – Plush Soft, Luxury Firm, and Firm – ensuring a personalized sleep experience tailored to a diverse range of preferences. Available in two height options – 11.5 inches and 14.5 inches – the Saatva Classic allows for customizable comfort and support. Unlike conventional online mattresses, the Saatva Classic arrives with a touch of elegance through complimentary white glove delivery, ensuring a seamless setup experience.

In our comprehensive assessment, the Saatva Classic emerged as a top performer, excelling across various metrics. From its innovative coil-on-coil design to the thoughtfully curated materials, every aspect has been scrutinized to deliver a sleep experience that surpasses expectations.

Saatva stands apart from typical bedinabox brands, with a focus on quality craftsmanship and posture correction.

We included Saatva on our list of best mattresses without fiberglass due to several standout qualities. It has CertiPUR-US standing in the market.

Also, upon testing, the robust innerspring foundation became evident, showcasing its responsive and lively nature.

Saatva seamlessly integrates foam and a plush, breathable pillow top to eliminate any sensation of steel coils, resulting in a harmonious blend of resilience, softness, and pressure relief for a truly comfortable and rejuvenating sleep experience.

  1. Cover: Crafted from organic cotton, the cover is breathable and luxuriously soft to the touch.  Treated with antimicrobial properties for a clean and hygienic sleeping surface.
  2. Comfort Layer: Features a 3-inch Euro pillow top for enhanced cushioning and targeted pressure relief.
  3. Zoned Support Layer: Utilizes a thin layer of memory foam to provide zoned support, particularly for the hips and lower back.
  4. Support Layer:  Consists of individually wrapped pocketed coils, offering optimal bounce, airflow, and support.
  5. Foundation Layer: Constructed with steel coils and high-density foam edge support for enhanced stability and durability.

The Saatva mattress typically feels luxurious and supportive, with a comfortable blend of cushioning and responsiveness. Its Euro pillow-top provides a plush surface, while the coil-on-coil construction offers sturdy support.

Overall, the feel can vary depending on the firmness level chosen, but it often strikes a balance between contouring to the body’s curves and providing ample support.


  • Traditional innerspring feel with innovative coiloncoil construction.
  • Multiple firmness options catering to diverse preferences.
  • Choice of height options for customizable comfort.
  • Organic cotton cover with antimicrobial treatment for breathability and hygiene.
  • Euro pillow top for added cushioning and pressure relief.
  • Zoned support layer with memory foam for targeted comfort.
  • Individually wrapped pocketed coils for enhanced bounce and support.
  • Steel coils and high-density foam edge support for stability and durability.
  • Uncompressed delivery with complimentary white glove service.


  • Moderate motion isolation, potentially less ideal for couples.
  • Firmness may not suit those seeking a softer sleep surface.
  • Limited firmness options for individuals with specific preferences.

Best Motion Isolation Mattress Without Fiberglass

3. AS3

amerisleep as3
  • Price Range : $1049 $2198
  • Made in USA: Yes
  • Motion Isolation: Absorbs motion giving you a comfortable sleeping experience
  • Available Sizes: Twin, Twin XL, Full, Queen, King, Cal. King, Split King
20 Years
Sleep Trial
100 Nights
Recommended For
  • Versatile Sleepers
  • Active lifestyles
  • Eco-Conscious Consumers
  • Enhanced Cooling
  • Targeted Support
  • Sustainable Materials

The AS3 mattress stands out as a top choice for discerning shoppers, particularly those seeking mattresses without fiberglass. Our team concluded that its popularity stems from its versatile design, catering to a wide range of body types and sleep preferences. Whether you’re an athlete in need of post-workout recovery or simply seeking a restful night’s sleep, the AS3 delivers unparalleled comfort and support.

A standout feature of the AS3 is its innovative Refresh Cover, engineered to provide a cool-to-the-touch feel throughout the night. Crafted from high-energy transfer fibers, this cover effectively dissipates heat, maintaining a refreshing sleep surface that’s 7 degrees cooler over eight hours. Moreover, the Refresh Cover utilizes minerals to convert body heat into far infrared energy, promoting optimal circulation for enhanced muscle recovery and sleep quality.

Our team was particularly impressed by the AS3’s adaptability to diverse needs. Its “medium” feel strikes the perfect balance between softness and support, thanks to the BioPur® memory foam core and HIVE® technology. The mattress conforms to the body’s contours, relieving pressure points and promoting ergonomic alignment for a restorative sleep experience.

Versatile Comfort: The AS3’s adaptable design caters to various body types and sleep styles, ensuring a personalized sleep experience for every user.

CuttingEdge Cooling Technology: The Refresh Cover and BioPur® memory foam work synergistically to maintain a consistently cool sleep surface, promoting uninterrupted rest.

Targeted Support: With HIVE® technology, the AS3 provides zoned support to alleviate pressure points and promote spinal alignment, crucial for a rejuvenating sleep.

BioPur® Memory Foam: This plantbased foam core offers plush comfort and breathability, preventing heat buildup and ensuring optimal airflow throughout the night.

HIVE® Technology: Strategically placed hexagonal segments provide targeted support to key areas like the head, back, and legs, enhancing overall comfort and alignment.

BioCore® Base Layer: The durable base layer maintains the mattress’s shape and integrity over time, ensuring longlasting performance and support.

Balanced Comfort: Experience the perfect blend of softness and support as the AS3 conforms to your body’s contours, relieving pressure points and promoting restful sleep.

Responsive Support: HIVE® technology ensures targeted support where you need it most, accommodating various sleeping styles for a personalized sleep experience.


  • Versatile Comfort and Support
  • Enhanced Cooling Technology
  • Targeted Pressure Relief
  • Durable Construction


  •  Relatively Higher Price Point
  •  Heavier Weight for Setup and Moving
  •  Edge Support May Be Limited Compared to Specialized Mattresses

Best Organic Mattress Without Fiberglass

4. Birch Natural

birch natural
  • Price Range: $1498 $2498
  • Made in USA: Yes
  • Motion Isolation: Absorbs motion giving you a comfortable sleeping experience
  • Available Sizes: Twin, Twin XL, Full, Queen, King, Cal. King
25 Years
Sleep Trial
100 Nights

Our team has delved deep into the world of natural sleep solutions, and one mattress has truly stood out: the Birch Natural Mattress. Crafted with a meticulous attention to detail and a commitment to sustainability, this mattress offers more than just a good night’s sleep—it provides a sanctuary of comfort and support that our testers couldn’t get enough of.

What sets the Birch Natural Mattress apart is its dedication to using natural and certified organic materials. From its organic cotton cover to the hygroscopic organic wool and breathable natural Talalay latex, every component is thoughtfully chosen to enhance airflow and keep you cool throughout the night. Our testers were impressed by how effectively this mattress regulates temperature, ensuring a refreshing sleep experience even on the warmest nights.

But it’s not just about staying cool; the Birch Natural Mattress is optimized for pressure relief and comfort in all sleeping positions. With a mediumfirm feel, it strikes the perfect balance between plushness and support, making it ideal for side sleepers, back sleepers, and stomach sleepers alike. The premium hypoallergenic and organic materials, including latex sourced from rubber trees, provide the right amount of contouring to alleviate pressure points and promote a restful slumber.

What’s more, Birch goes above and beyond when it comes to certifications and safety standards. The Birch Natural Mattress is GREENGUARD Gold and GOTS certified, ensuring that it’s free of harmful substances like polyurethane foams, formaldehyde, and pesticides. Our team values the peace of mind that comes with knowing our mattress is sustainably sourced and ethically produced, setting the highest standards for safety and quality in natural sleep products.


Crafted with natural and certified organic materials, making it an ecofriendly choice for guest rooms

Optimized for pressure relief and comfort in various sleeping positions, ensuring a restful night’s sleep for guests

Breathable design with organic cotton cover, hygroscopic organic wool, and natural Talalay latex promotes airflow and temperature regulation, enhancing guest comfort

  •  Organic cotton cover: Provides a breathable and comfortable surface layer
  •  Hygroscopic organic wool: Enhances airflow and moisturewicking properties
  •  Natural Talalay latex: Offers contouring support and pressure relief for guests
  •  Certified organic and hypoallergenic materials ensure a safe and healthy sleep environment
  •  Medium- firm feel suitable for a wide range of preferences and sleeping styles
  •  Provides cradling comfort and support in all sleeping positions
  •  Individuals using this mattress experiences a cool and refreshing sleep surface


  •  Crafted with natural and certified organic materials, making it an ecofriendly choice
  •  Optimized for pressure relief and comfort in various sleeping positions
  •  Breathable design promotes airflow and temperature regulation
  •  Certified organic and hypoallergenic materials ensure a safe and healthy sleep environment


  •  Medium-firm feel may not be suitable for guests who prefer extremely soft or firm mattresses
  •  Limited firmness options available for guest customization preferences

Best Budget Mattress Without Fiberglass

5. Bear Original

bear original
  • Price Range: $786 $1690
  • Made in USA: Yes
  • Motion Isolation: Absorbs motion giving you a comfortable sleeping experience
  • Available Sizes: Twin, Twin XL, Full, Queen, King, Cal. King, Split king
Sleep Trial
120 Nights
Recommended For
  • Budget-conscious shoppers seeking a high-quality mattress
  • Sleepers in search of a supportive and balanced feel
  • Couples who prioritize motion isolation for undisturbed rest
  • Breathable TENCEL™ Cover
  • Optional Celliant Infused Cover
  • Cooling Gel Memory Foam

Our team at Zoma Sleep has thoroughly researched and analyzed the Bear Original mattress, and we’re excited to share our findings with you. Boasting a blend of innovative features and high-quality materials, the Bear Original is designed to provide a restful and rejuvenating night’s sleep.

At the heart of the Bear Original is its breathable TENCEL™ cover, crafted from naturally soft and long-lasting fibers. This unique cover promotes airflow and helps regulate temperature, ensuring you stay cool and comfortable throughout the night. For those seeking enhanced recovery and well-being, the optional Celliant Infused Cover with Sleep Recovery Technology™ offers an additional layer of temperature regulation and therapeutic benefits.

Also, our team found that the mattress’s cooling gel memory foam works tirelessly to draw away unwanted body heat, while also promoting improved spinal alignment for a more comfortable sleep experience.

According to the reviewers, it is ideal for shoppers on a budget who refuse to compromise on quality, the Bear Original delivers exceptional value without sacrificing performance. Its balanced feel and motion isolation properties make it a perfect choice for couples seeking undisturbed rest.


  •  Exceptional Value: Bear Original offers high-quality features at an affordable price point, making it a top choice for budget-conscious shoppers in search of a fiberglass free mattress.
  •  Balanced Support: Our team selected Bear Original for its ability to provide a supportive and balanced feel, catering to a wide range of sleep preferences without compromising on comfort.
  •  Motion Isolation: With excellent motion isolation properties, Bear Original is ideal for couples seeking undisturbed sleep, making it a standout option in the fiberglass free mattress category.
  • Breathable TENCEL™ Cover: Crafted from naturally soft and breathable TENCEL™ fibers, the cover promotes airflow and temperature regulation for a cool and comfortable sleep.
  • Cooling Gel Memory Foam: Designed to draw away excess body heat and provide improved spinal alignment, ensuring a restful and comfortable sleep experience.
  • Bear Dynamic Foam: Offers balanced support and deeper compression for superior pressure relief, contributing to a more rejuvenating sleep.
  • HighDensity Support Foam: Provides long-lasting durability and support, ensuring the mattress retains its shape and integrity over time.

Bear Original offers a supportive and balanced feel, catering to various sleep positions and preferences.

The combination of cooling gel memory foam and Bear Dynamic Foam provides a comfortable and restorative sleep experience.

With excellent motion isolation capabilities, Bear Original minimizes disturbances from movement, promoting uninterrupted sleep.


  •  Affordable Price: Bear Original offers exceptional value for its price, making it an attractive option for budget-conscious shoppers.
  •  Balanced Support: The mattress provides balanced support and pressure relief, catering to a wide range of sleep preferences.
  •  Motion Isolation: With excellent motion isolation properties, Bear Original is ideal for couples seeking undisturbed sleep.
  •  Durable Construction: High-density support foam ensures long-lasting durability and support, making it a wise investment in quality sleep.


  •  Limited Firmness Options: Bear Original may have limited firmness options compared to other mattresses in the market.
  •  Potential OffGassing: Some users may experience slight offgassing upon unboxing, although it typically dissipates within a few days.
  •  Cooling Properties: While the mattress offers cooling gel memory foam, some users may prefer additional cooling features for hot sleepers.

Why Do Mattresses Contain Fiberglass, Anyway?

You may be wondering, why does my bed contain some weird plastic? What does that have to do with my sleep and comfort? Well, it doesn’t. Fiberglass in mattresses has to do with your safety.

The United States’s federal regulations state that mattresses must contain a flame barrier. Chemical flame retardants are banned in the US because they’re toxic to humans. So, mattress manufacturers turned to fiberglass.

Fiberglass is a cheap fire barrier that’s non-toxic and chemical-free. In the event of a fire, the fiberglass would melt and encase your mattress, preventing it from going up in flames. This gives people enough time to escape and has saved countless lives.

Why Should You Avoid a Mattress With Fiberglass?

There’s an easy reason people want to avoid a bed with fiberglass.

Technically, fiberglass in mattresses is non-toxic and shouldn’t irritate your body. It stays under the covers where you won’t come in contact with it. Still, the fibers can still escape from under the covers, especially if you unzip the cover or tear it.

Exposure to fiberglass can irritate your skin, eyes, nose, mouth, throat, and stomach. You may develop rashes or itchy skin, red or itchy eyes, a dry nose or mouth, and a sore throat. People who have allergies, asthma, or bronchitis may notice worsened symptoms as well after fiberglass exposure.

Fiberglass isn’t the only flame barrier out there, though. Flame barriers without harmful chemicals include wool, silica, and plant fibers. They’re as safe as fiberglass but won’t aggravate you or your body.

Signs of Fiberglass in a Mattress

There are several indicators that can help identify mattresses containing fiberglass. By being aware of these signs and conducting thorough research, buyers can make informed decisions and choose high-quality mattresses that meet their needs.

One of these is the presence of “Made in China” labels. Manufacturing practices in China often involve less stringent safety standards, potentially leading to health hazards, so be wary of mattress brands that make their beds overseas.

Another clue is the use of polyfoam instead of proper memory foam, as some manufacturers may use polyfoam that contains fiberglass as a cheaper alternative. Additionally, cheap memory foam mattresses or all-foam mattresses with unusually low prices, especially under $400 for larger sizes, are likely to be fiberglass-filled or made with other potentially harmful materials.

It’s also important to be cautious of mattresses with non-removable covers, as mattress manufacturers often discourage removing the mattress cover to prevent exposing fiberglass.

Retailers may also engage in “greenwashing,” using misleading terminology to make mattresses appear more natural and non-toxic. Words like “glass wool,” “glass-reinforced plastic” and “glass fibers” are often employed to deceive customers seeking eco-friendly options.

To ensure a fiberglass-free and chemical-free mattress, it’s advisable to look for reputable certifications that attest to the mattress’s quality and non-toxicity.

Types of Mattresses Without Fiberglass

There’s no specific mattress type that uses fiberglass. So long as you double-check the mattress’s specifications, any type of bed is fair game. Let’s take a look!

Memory Foam

Memory foam mattresses are cushiony, pressure-relieving types of beds with a “hug-like” feel. The memory foam conforms under your body to soothe aches so you sleep undisturbed all night long. Aside from providing excellent pressure relief, most memory foam mattresses also absorbs movement at the point of impact, keeping motion from rippling across the surface and disturbing a partner’s rest.

While memory foam mattresses often contain fiberglass, this isn’t always the case. More and more memory foam mattress manufacturers use different fire barriers in their beds. This way, you don’t wake up feeling irritated or uncomfortable.

One potential drawback is heat retention. Memory foam tends to trap body heat, which can result in a warmer sleeping surface. This may be uncomfortable, particularly for individuals who naturally sleep hot or live in warmer climates. However, advancements in mattress technology have led to the development of gel-infused memory foam and open-cell foam, which aim to address this issue by improving airflow and heat dissipation.

Another consideration is the initial off-gassing odor that memory foam mattresses may emit. This odor is caused by the release of volatile organic compounds (VOCs) present in the foam. While the smell is usually temporary and dissipates over time, some individuals may find it bothersome. Opting for mattresses that are CertiPUR-US® certified can ensure that they have undergone testing for harmful chemicals and have low VOC emissions.

Despite these drawbacks, shoppers still choose memory foam mattresses for their unique benefits. Ultimately, the decision to choose a memory foam mattress depends on individual preferences and needs. Shoppers who prioritize pressure relief, motion isolation, and personalized comfort often find that the benefits of memory foam outweigh its potential drawbacks.


Natural latex mattresses are made from the sap of rubber trees. They’re another type of foam bed, only they’re springier and more durable than memory foam or polyurethane foam. They don’t have the same “hug-like” feel as memory foam beds which is great for some people. Plus, latex foam mattresses are cool and supportive.

Dunlop and Talalay are the two types of natural latex used in mattress manufacturing. Dunlop latex is the traditional ingredient inside an organic latex mattress and more widely available type. It is made by whipping latex sap and pouring it into a mold, followed by a vulcanization process.

Talalay latex, on the other hand, involves an additional step. After pouring the latex sap into a mold, it is vacuum-sealed and then flash-frozen before being baked. This freezing process creates a more consistent cell structure and results in a softer and more buoyant feel. Some of the best latex mattresses may use both as separate latex layers.

Natural latex beds are the least likely to contain fiberglass particles. Latex mattress manufacturers usually don’t add fiberglass to their beds for sustainability’s sake, particularly if they’re building a wholly organic mattress. Instead, you’ll find more natural fire barriers in your latex or latex hybrid bed, such as organic wool or plant fibers.

This doesn’t mean you have to choose a natural latex mattress, though, as some of the best mattresses without fiberglass contain other materials.


Innerspring mattresses are a classic type of bed that almost everyone has slept on at some point. These beds are known for their excellent support, bounce, and breathability. They feature pillow tops often made out of cotton, wool, down, or foam.

As a popular type of mattress, innerspring beds come in a wide range of prices. Generally, higher-end models are less likely to contain fiberglass and vice versa. But, this isn’t a universal rule when it comes to innerspring mattresses. So always double-check what fire barrier a bed contains before making a purchase.

Innerspring mattresses can also have several comfort issues. For example, innerspring mattresses may create pressure points, especially on heavier areas of the body, due to the coil system. This can lead to discomfort and disrupted sleep.

Innerspring mattresses can also cause disturbances in sleep due to higher levels of motion transfer. They often lack the ability to contour closely to the body’s shape, resulting in less personalized support. This can lead to discomfort and inadequate spinal alignment, particularly for those with pressure point issues or back problems.


Hybrid mattresses combine components of both foam and spring mattresses to optimize your support and comfort. They have a coil support system—like innerspring beds—and a foam comfort layer—like memory foam and latex beds. Together, the best hybrid mattresses are springy, supportive, and breathable, yet still cushiony and pressure-relieving.

Unlike most innerspring beds, hybrid mattresses contain pocketed coils. The coils are wrapped in fabric to maximize motion isolation and prevent squeaks and coil breakage. This way, your spine stays in healthy alignment, and the individually wrapped coils also increase couples’ comfort.

Sturdy steel coils around the mattress perimeter can provide a ‘firmer’ feel for enhanced stability and prevent excessive sinkage. Reinforcing the mattress sides in this way allows for better edge support and maximizes the usable surface area of the mattress.

The foam layer in hybrid beds must be at least 2 or 3 inches thick to be labeled a hybrid, not an innerspring mattress. The thick layer of cushioning protects the heaviest parts of your body from pressure build-up, soreness, and achiness.

Key Takeaways

  • Fiberglass as a Mattress Flame Barrier: Fiberglass is commonly used in mattresses as a fire barrier to comply with federal regulations in the United States. Its purpose is to prevent mattresses from catching fire and to allow sleepers enough time to escape in case of an emergency. While it is considered non-toxic and non-irritating when contained, fiberglass can cause skin, eye, and respiratory irritation if it escapes the mattress.
  • Risks and Concerns with Fiberglass in Mattresses: Fiberglass particles can escape from the mattress cover, especially if the cover is unzipped or torn, leading to skin, eye, and respiratory irritation. Individuals with allergies, asthma, or bronchitis may experience exacerbated symptoms when exposed to fiberglass.
  • Fiberglass-Free Mattress Options: Be cautious when purchasing mattresses, particularly those with unusually low prices or non-removable covers. Natural latex mattresses are less likely to contain fiberglass and often use organic materials as fire barriers. Memory foam, innerspring, and hybrid mattresses mattresses, although some may contain fiberglass, are increasingly using different fire barriers to avoid potential irritation.

How to Choose a Mattress Firmness

Beyond picking what type of mattress you want, it’s important to choose the right mattress firmness. Mattress firmness affects how cushiony or hard your bed is which is crucial to your comfort at night. Mattress firmness is rated on a scale of 1 to 10, with 1 being the softest and 10 being the firmest.

Choosing a mattress firmness comes down to your sleeping position. How you sleep affects how much cushioning you need to sleep pain-free!

Side Sleepers

Side sleepers need soft to medium mattresses. When side sleeping, the hips and shoulder sink deepest into the mattress. A too-firm surface can let pressure build-up, causing discomfort. Thus, lots of cushioning are needed in a mattress for side sleeping to properly protect their hips and shoulders from pressure build-up and pain.

Still, a soft mattress isn’t to every side sleeper’s taste. Some may prefer a medium-soft to a soft mattress, and even a medium bed still offers just enough support to keep the spine aligned.

Some side sleepers may also prefer a bouncy mattress instead of an all-foam. We recommend hybrid mattresses for side sleeping, since a traditional innerspring mattress can feel too firm.

Back Sleepers

When back sleeping, it’s best to use a medium to firm mattress. Back sleepers need lots of spinal support to keep their spine aligned without causing lower back pain. A medium to firm mattress for back sleeping won’t cause you to sink—throwing the spine out of alignment—ensuring you stay comfortable all night long.

Stomach Sleepers

Stomach sleepers need medium-firm to firm mattresses to keep their spines aligned. However, stomach sleeping is arguably one of the worst sleeping positions. It’s hard on your back, can worsen wrinkles and acne, and may inhibit your breathing. Still, it’s difficult to change your primary sleeping position overnight. So, use a medium-firm to firm mattress in the meantime.

Combo Sleepers

People who flit between two or three positions are combination sleepers, so they need a versatile mattress to keep up with their every shift in sleeping position. Medium to medium-firm feels typically establish the best mattresses for combination sleepers. Many also enjoy the responsive surface of hybrid mattresses.

Heavier Sleepers

For those who weigh over 230 pounds, it’s important to find a mattress that can handle the added weight without sinking in too much. Look for mattresses that are on the firmer end of the recommended range for your sleep position, as this will provide the necessary support and prevent you from feeling like you’re sinking into the bed.

Lightweight Sleepers

If you’re under 130 pounds, you’ll want to look for a mattress that has a softer feel to it. This will help the mattress conform to your body and provide the necessary support for your smaller frame. Look for fiberglass-free mattresses that have a softer feel to them, as this will provide the necessary cushioning without feeling too firm.

Mattress Brands That Do & Don’t Use Fiberglass

Mattress BrandIs There Fiberglass Present?
Ashley MattressesYes
Best Price MattressYes
Big FigNo
Brentwood HomeNo
Brooklyn BeddingNo
Classic BrandsYes
Dynasty MattressNo
Eco TerraNo
Eight SleepYes
Full MoonYes
Latex for LessNo
My Green MattressNo
Natural FormNo
Nest BeddingNo
Perfect CloudYes
Signature SleepYes
Silk & SnowNo
Sleep InnovationsYes
Sleep NumberUnknown
Sleepy’s by Mattress FirmYes
Stearns & FosterYes
Sunrising BeddingNo
Tuft & NeedleNo
tulo by Mattress FirmYes

Frequently Asked Questions

Does every mattress have fiberglass? 

No, not every mattress contains fiberglass, but it’s very common. Since it’s not always clear whether a mattress has fiberglass or not, you must figure it out on your own. 

Read the fine print of a mattress online or check its label. If you see words such as “glass fibers,” “fibrous plastic,” or even just “fiberglass,” the bed contains fiberglass. 

What type of mattresses doesn’t have fiberglass?

Any type of mattress can be fiberglass-free. It really depends on the company and their standard when looking for a fiberglass-free bed. 

Still, memory foam mattresses commonly contain fiberglass whereas latex mattresses and eco-friendly mattresses are often fiberglass-free. Memory foam beds usually contain man-made materials while latex beds contain mostly natural materials. Still, any type of bed may or may not contain fiberglass. 

How do you know if my mattress has fiberglass?

Mattress companies rarely advertise their beds as having fiberglass. For shoppers, fiberglass is a no-no due to its irritating properties. So, you’ll have to dig a bit deeper to see what your bed contains.

Check a mattress’s care instructions or label (if you already own the bed) and see if it says “do not remove cover.” This usually means there’s fiberglass under the bed’s cover. It’s important to know that some mattress covers might have zippers and say “do not remove mattress cover.”
Mattresses with third-party certifications are less likely to contain fiberglass. Look for certifications such as Global Organic Textile Standard (GOTS), Global Organic Latex Standard (GOLS), CertiPUR-US®, or OEKO-TEX Standard 100.

Can fiberglass cause lung disease?

No, fiberglass is commonly misconstrued as being deadly or causing long-term health issues, but no evidence supports this. You may notice throat and mouth soreness after being exposed to fiberglass. People with preexisting asthma or bronchitis may have worsened symptoms when exposed to fiberglass as well. However, fiberglass won’t cause lung disease or cancers.

What is the difference between asbestos and fiberglass?

Asbestos and fiberglass are very different materials, despite fiberglass being called the “man-made fiberglass”. Asbestos is a fibrous silicate mineral, while fiberglass is a hard plastic reinforced with glass fibers. Asbestos is a naturally occurring material but fiberglass is man-made.

Both are fibrous and cause adverse side effects when in contact with them. However, asbestos is deadly, while fiberglass only causes mild and temporary symptoms. Chronic asbestos exposure can cause asbestosis, cancers, pleuritis, among other conditions. Fiberglass exposure causes skin, eye, nose, mouth, and throat irritation.


While fiberglass isn’t deadly, it still isn’t an ideal fire barrier in a mattress. Look for an eco-friendly mattress with wool, silica, or plant fiber flame barriers, like our options at Zoma! Beyond just choosing a different fire retardant, compare mattress types and firmnesses to find the best mattress for you!

This article is for informational purposes and should not replace advice from your doctor or other medical professional.

Michelle Zhang, Wellness Writer Michelle Zhang

Michelle Zhang is a regular contributor to our Zoma blog and is our go-to sleep researcher. In her time with Zoma, Michelle has researched and published many articles on widespread sleeping habits and troubles. In her time outside of Zoma, Michelle is an occupational therapist and long-distance runner. She believes leading a healthy lifestyle is the key to getting better sleep at night. Michelle's work has been featured on Men's Journal, The Frisky, and The Mighty.

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