by Our #1 Recommended Mattress
Fiberglass-free pick: Amerisleep AS3
Amerisleep states directly: "Fiberglass-free mattress is eco-friendly and non-toxic." The AS3 uses Bio-Pur plant-based foam (CertiPUR-US certified, low VOCs) with a Refresh Cover featuring far infrared technology, and a Bio-Core base for durability.
Firmness: Medium 5/10 · Trial: 100 nights · Warranty: 20 years (10 full replacement + 10 prorated) · Made in USA of US and imported components.
Last Updated: March 2026 - Content reviewed and verified by our editorial team.
Saatva Classic. From $1,095
365-night trial · Lifetime warranty · Free white-glove delivery
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SweetNight is a new mattress brand on the market that has created a few ripples recently. It is one of the better budget-friendly options where you don't have to compromise on quality.
Their mattresses offer excellent comfort and support. The company sells both all-foam and hybrid mattresses. These mattresses are suitable for combination sleepers and sleep positions.
The company is CertiPUR-US certified and doesn't use harmful chemicals to develop its mattresses and other design accessories.
However, SweetNight mattresses do have fiberglass in them. The company claims that this fiberglass is deeply infused into the comfort layer of the mattress. Therefore, it won't come out of the mattress by any means.
Our favorite fiberglass-free mattress for 2026 (#1 rated)
Is SweetNight Fiberglass free mattress?
Still, their mattress does have fiberglass, especially the all-foam variants. The company sells hybrids, but these mattresses don't have fiberglass. So, going for the hybrid mattresses is a better option to consider if you want to buy SweetNight.
However, we would suggest you go for Saatva mattresses. These mattresses don't have fiberglass and are handcrafted with top-notch workmanship.
Why Do We Recommend Saatva Instead of SweetNight Mattress?
SweetNight is a good mattress company that sells quality mattresses. Their memory foam mattresses and especially SweetNight Ocean Blue mattress is pretty good in terms of performance and longevity.
However, SweetNight memory foam mattresses contain fiberglass, especially the all-foam versions. You can try out their hybrids, as they don't have fiberglass. But what if you are looking for an all-foam mattress?
Well, that is why we highly recommend you to god or Saatva, and none of their mattresses has fiberglass. The company doesn't use cheaper alternatives to make their mattresses fire retardant. Also, Saatva mattresses come with an industry-leading lifetime warranty and a 365-year sleep trial.
What Are SweetNight Mattresses Made of?
SweetNight mattresses come in two different forms. They sell all-foam and hybrid mattresses. Their all-foam mattresses have a comfort layer made of gel-infused memory foam, and the base layer is made of high-density support foam (check the 8 amazing high density foam mattresses).
The hybrid mattress has an additional layer between the comfort and base layers. It features individually wrapped steel coils that are made of quality steel.
The quality of the materials SweetNight has used in their mattresses is impressive. They use fiberglass as a cheap fire retardant to cut costs.
Why Does Sweetnight Use Fiberglass?
As we have just mentioned, the company used fiberglass to cut costs. Federal law bound mattress makers to make their mattresses fire retardant for the safety of the consumers.
Most mattress manufacturers go for cheaper alternatives, and there is nothing better than fiberglass to make a mattress fire retardant cheaply.
Of course, there are other alternatives available as well. These include the likes of natural thistle, organic wool, latex, and others (check the best selling organic mattresses). Still, sourcing these materials isn't cheap.
As a result, this additional cost goes into the overall price of the mattress. Therefore, most mattress manufacturers don't opt to go down this route, and SweetNight is one of them.
What Does Saatva Use as A Fire Retardant?
Saatva is a quality mattress brand that has been around for many years. The company understands the ins and outs of mattress manufacturing. That is why it doesn't use low-quality materials to construct its mattresses.
Similar is the case with fire retardants. Saatva uses organic wool and natural thistle to make their mattresses fire retardant. Now, sourcing these materials is not cheap, and that's why Saatva mattresses have a slightly bigger price tag if you compare their mattresses with the likes of SweetNight and others.
How to Check If Sweetnight Mattress Has Fiberglass?
Mattress makers put fiberglass on top of the comfort layer right next to the cover of the mattress. That's why they ask you to remove the cover. Most such brands make their mattress covers non-removable. So, that is one indication that your mattress does come with fiberglass.
You can check the label of your mattress, which contains a list of materials used in the construction of the mattress. If this list has fiberglass, that is another obvious sign.
Some users try to remove fiberglass from their mattresses on their own. But that is very dangerous, and you will contaminate your entire home with fiberglass.
If you have done that, ensure you have a HEPA vacuum to clean the area thoroughly. However, no matter how careful you are, fiberglass can stay in your home for many days if your home is not well-ventilated.
What Mattress Brand Has No Fiberglass?
Saatva is the obvious choice if you try looking for a mattress that doesn't have fiberglass. This is because Saatva only uses quality materials to construct mattresses.
These mattresses are then handcrafted with care while maintaining the quality standards that the company has set.
Each of these mattresses comes with a lifetime warranty and 365-night sleep trials to provide you with peace of mind. Instead of using fiberglass, Saatva uses organic wool and natural thistles to make their mattresses fire retardant.
Saatva is a top-notch mattress brand that doesn't compromise on quality. Plus, quality materials are difficult to source, which drives the cost up. That is why Saatva mattresses are relatively higher as compared to other mattresses.
Our Top Mattress Pick
| Saatva Classic | $1,395+ | Shop |
| Saatva Contour5 | $1,595+ | Shop |
| Saatva Zenhaven | $1,895+ | Shop |
How to Choose the Right Mattress
With thousands of mattress options available, cutting through the noise requires focusing on what actually matters for your sleep quality and budget.
The Three Things That Matter Most
- Support and alignment. Your mattress should keep your spine in a neutral position regardless of sleep position. If you wake up with aches or stiffness, your mattress is failing at its primary job.
- Temperature regulation. Sleeping hot disrupts deep sleep cycles. Innerspring and hybrid mattresses with coil systems promote airflow far better than all-foam designs.
- Purchase protection. A generous trial period (100+ nights), strong warranty, and hassle-free returns protect you from an expensive mistake. Never buy a mattress you cannot return.
A Strong Benchmark
The Saatva Classic ($1,779 Queen) scores well on all three factors: coil-on-coil construction for support and airflow, a 365-night home trial for risk-free evaluation, and a lifetime warranty for long-term protection. Free white-glove delivery and old mattress removal are included with every order.
Does Sweetnight Have Fiberglass? Safety Assessment
Popular Amazon hybrid brand ($350-$550 Queen).
Fiberglass Status
Possible fiberglass - verify before purchasing. Some Sweetnight models have been reported to contain fiberglass. Verify on the specific model's law tag.
How to Check for Fiberglass
- Read the law tag attached to your mattress
- Look for "glass fiber," "fiberglass," or "glass wool" in the materials list
- If present, NEVER remove the inner zippered cover under any circumstances
- Add a fully zippered mattress encasement as an additional containment barrier ($30–$50)
If Fiberglass Has Been Released
- Do NOT vacuum - this spreads microscopic fibers through the air and HVAC
- Do NOT use compressed air or fans
- Contact a professional remediation company ($2,000–$20,000+ depending on severity)
- Seal the room if possible until professionals arrive
More fiberglass info: Lucid fiberglass issues | Zinus lawsuit | bamboo mattress fiberglass.
For guaranteed fiberglass-free construction, the Saatva Classic uses a natural thistle fire barrier - zero fiberglass in any component. 365-night trial, lifetime warranty.
Try Saatva risk-free →
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