Which Memory Foam Mattresses Do Not Contain Fiberglass?


I contacted a bunch of the “Bed-in-a-Box” companies selling memory foam mattresses on Amazon and asked them these questions:

Do any of your memory foam mattresses contain fiberglass, modacrylic, or silica in the covers or any other part of the mattress? What countries are your memory foam mattresses made in?

What I found regarding which Memory Foam Mattresses contain Fiberglass

On September 16th, 2019, I contacted all of these memory foam mattress manufacturers and allowed more than two weeks for responses. Most replies came in a day or two, a few took up to 5 days, and the rest didn’t even bother to respond. Blank rows in the table below denote a memory foam mattress manufacturer that ignored me and didn’t respond to my questions.

Manufacturer Fiberglass? Modacrylic / Silica / Rayon / Polyester FR Chemical Spray? Countries of Origin
AmazonBasics n/a n/a n/a Various – China, Malaysia, etc
American Bedding
Best Price Mattress No Silica No China, Serbia, South Korea, Spain, Thailand, Vietnam
Casper Sleep No Yes No USA, Canada, or Europe.
Classic Brands
Dreamfoam Bedding No Silica, Rayon, Polyester No USA
Early Bird
Eco Terra No No No Sri-Lanka, USA
Linenspa Some No Yes
LUCID Some Unstated Some Unstated
Molblly Yes Unstated Unstated China
Nectar No No No China
Perfect Cloud
Sealy Unstated Unstated Unstated USA
Signature Designs Unstated Unstated No Unstated
Signature Sleep Yes Modacrylic Unstated China
Sunrising Bedding No No No China, Malaysia
Tempur-Pedic Unstated Unstated Unstated Unstated
Tuft & Needle No Polyester No USA
Zinus Yes No No China, USA

Based on what I found the best Memory Foam Mattress brands on Amazon that do NOT contain fiberglass are Nectar and Sunrising Bedding, and while not technically a memory foam mattress Eco Terra would be another good choice if you don’t mind a Latex mattress.

To see more memory foam mattress information and the actual responses to my questions made by Memory Foam Mattress manufacturers, see below.


AmazonBasics memory foam mattresses are made by various manufacturers so it would be hard to track down who made what, and even If I did it could change at any time. I would just play it safe and just always assume that an AmazonBasics memory foam mattress could contain fiberglass.

Best Price Mattress

Best Price Mattress’ response:
“Our memory foam mattresses contain a silica based fire sock that encases the foam inside the mattress. Our materials are globally sourced in countries such as Thailand, Spain, Serbia, Vietnam, China and South Korea.”

A bit shady – Their website says mattresses are “Designed in USA” but fails to mention that it could actually be constructed in Canada, Europe, or USA.

Casper Sleep

Casper Sleep’s response:
“None of our mattresses contain any of the materials you listed in your question above, nor do our mattress covers. Our mattresses are designed in the USA… Due to how we function, many of our products are manufactured locally per the domain… We operate in Europe, Canada and America currently, so it’s dependent upon where you purchase our mattress to an extent.”

However, Casper Sleep’s website FAQ clearly states:
“The Casper mattresses do not contain any flame retardant chemicals. Our flame retardant is a proprietary woven silica sock that’s just under the cover. In the event of a fire, the sock melts on itself and suffocates the oxygen needed for the fire to burn.”

Dreamfoam Bedding

It appears that Dreamfoam Bedding is owned and/or operated by Brookyln Bedding because that’s who responded to me via email after using the contact form on Dreamfoam Bedding’s website.

Dreamfoam Beddings’s response:
“We do not use any chemical fire sprays or chemical retardants in our mattresses. Brooklyn Bedding only uses the highest quality fire-retardant socks, made of Non-Woven Silica/Rayon/Polyester/Cotton Blend. For more information regarding our fire retardant fibers, you can research Jones Fiber. Our mattresses are made here in the U.S. in Phoenix, Arizona.”

Eco Terra

While Eco Terra is technically a manufacturer of Latex mattresses and not memory foam I still decided to see what they had to say.

Eco Terra’s response:
“We source our latex in Sri-Lanka, but the mattress is assembled and handcrafted here in our warehouse in Camarillo, CA. The mattress does not contain any fiberglass, etc. It’s made of all natural latex, organic wool and cotton. We only use organic wool as natural fire barrier.”


Linenspa’s response:
“There are no harmful chemicals or fire retardants used in the manufacturing of the product. The only one with the fiberglass fire retardant and that is the 5″ gel memory foam mattress. The rest have a non removable cover… They are a treated cotton”

I must note that lots of Amazon reviews for Linenspa beds have complaints about bedbugs arriving in the package..


LUCID’s response:
“Here is a list of mattresses that have a treated cotton fire-retardant cover instead of a fiberglass fire retardant:
5 inch Gel Infused Memory Foam, 6 inch Gel Infused Memory Foam, 8 inch Gel Infused Memory Foam, 10 inch Gel Infused Memory Foam, 10 Inch Plush Gel Infused Memory Foam”


Molblly’s response:
“The inner cover of our memory foam mattress contains fiberglass… In addition, we are a large mattress manufacturer in China and our mattresses are also made in our factory in China.”


Nextar’s response:
“None at all… NECTAR does not contain any flame retardant chemicals. Rather a proprietary sock that’s just under the cover. In the event of a fire, the sock melts on itself and suffocates”


Sealy’s response:
“Sealy mattresses are designed and built in the U.S.A.”

Aside from revealing the country mattresses are manufactured in, Sealy dodged the other questions and didn’t reveal any info about Fiberglass use or Modacrylic/Silica/Rayon/Polyester.

Signature Sleep

Signature Sleep’s response:
“Our Signature mattresses are manufactured in China… The FR barrier sock is made with a knitted process with 50% Modacrylic/50% Glass yarns (+/-10%). The Glass and Modacrylic yarns are used in the thread form on a small rolls and the final product is a kind of knitted (or woven) fabric.”

Signature Sleep was perhaps the most forthcoming of all the memory foam mattress manufacturers, they didn’t try to dodge questions and were the only manufacturer to give the amounts of Fiberglas and Modacrylic used based on percentages.

Sunrise Bedding

Sunrise Bedding’s response:
“We don’t have any fiberglass or chemical materials in the cover. Sunrising Bedding 8 inch and 10 inch mattress cover is made of pure Cashmere wool. Our mattress is manufactured in Malaysia.”

However, Sunrise Bedding’s website FAQ clearly states:
“The mattress is made in China. But it is CertiPUR-US certified that means it is made of safe materials and qualified for physical performance. We ensure it the same quality as U.S. mattresses.”


Tempur-Pedic completely dodged the questions and replied to me with a cookie cutter cut-n-paste reply that revealed no information about the country of origin nor materials used in their memory foam mattress manufacturing processes. They basically said it’s all a proprietary secret and that it’s legal and safe according to state and federal regulations.

Tuft & Needle

Tuft & Needle’s response:
“We manufacture our mattresses here in the US and do not use fiberglass, modacrylic, or silica in any components of our Original T&N or Mint mattress models… Our firesock is actually crafted with a polyester/cotton blend knit fabric, treated with a food grade salt.”


Zinus’ response:
“All our mattresses contain glass fiber.”

Regarding where Zinus mattress are made their website states:
“Right now, our product designers are based in South Korea and our manufacturing factories are in Xiamen, China.”

Popular brands from Amazon that were skipped due to not having a website are: Olee Sleep, PrimaSleep, Ssecretland, Vesgantti, Vibe, and YiiYYaa. Nightsbridge by Corsicana was skipped because they’re not sold on Amazon like Corsicana’s other brands.

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