Some mattresses sold in the broader market do use fiberglass as part of their fire barrier system. These conversations often focus on smooth-top mattresses (all-foam or hybrid models) that use a “sock”-style fire barrier. This is a sleeve-like cover that encases the mattress layers to meet federal flammability standards (16 CFR Part 1633).
- Fire barrier materials and methods vary widely by manufacturer and by specific model.
- “Sock”-style barriers are very common in smooth-top, no-tuft mattresses (both all-foam and hybrids).
- These barriers can be made from:
- Inherent FR rayon
- Fiberglass
- Or a blend of the two
Not every mattress uses fiberglass, and many reputable brands have moved away from it in favor of alternative flame-retardant fabrics or knit barriers.
If you’re concerned about fiberglass in your current mattress (or one you’re considering), the best step is to contact the manufacturer directly. They can confirm the exact materials used in the fire barrier for your specific model.
At The Beloit Mattress Company, we prioritize transparency and avoid fiberglass in our fire barriers, our mattresses use safe, non-fiberglass alternatives that still meet all federal safety standards. If you’d like details on our construction or have questions about any of our models, just let us know, happy to share!