Recently I read an article about the Zinus mattresses leaking fiberglass and it got me checking my own mattress to be sure. The tag on the outer cover read “made in china, cover is machine washable, 67% polyester/33% viscose // 78% polyester/22% viscose”, so no mention of any fiberglass content to be sure. I shone a flashlight under my bed to be sure it hadn’t “leaked” any material as I had recently removed the cover for a bit. I’d read in the articles that fiberglass strands would reflect the light and show up. Now I didn’t see any fiberglass “hairs”, but I DID notice tiny specks of what looked like it could be very finely ground glass and it got me a bit paranoid.
The thing is, about two months ago I dropped a glass item in my room that shattered, so I suppose there IS a possibility there could be some remains of that glass, but it was far away from where I’d dropped the item and on top of boxes stacked under the bed. Because I felt unsure I emailed Jysk, where I’d bought the mattress (a Wellpur F30 mattress to be precise) to ask them what material they used for their FR barrier, but the only information they gave me was the same “67% polyester/33% viscose // 78% polyester/22% viscose”. This seems… incomplete to me? I haven’t heard of an FR sock made only of those materials and I have SEEN that the foam mattress is encased in a kind of knitted sock, similar to the pictures on websites like Alibaba of FR sock material that is described as containing fiberglass. Aditionally, when I asked another Jysk employee if their FR barriers contained modacrylic or fiberglass they answered “many of our mattresses do contain these, yes”, but when I asked about my specific mattress I got the generic list of materials that can be found on their website. It came across to me like an underpaid customer service employee just repeating the information easily available to them. In the end I’m left really confused if I should be worried about there being glass fibers inside the mattress cover or if it’s a non-issue and I just got in my head. I just KNOW I don’t want a mattress if it does contain fiberglass, but returning the mattress (it is still in the return period) would be quite the hassle so I want to avoid it if I don’t have to. What do you guys think? Is it possible that the FR sock only contains the materials listed on the tag?