Nectar Mattresses and Fiberglass: What’s Actually Inside?

If you’ve been Googling “is there fiberglass in Nectar mattresses,” you’re not alone. I’ve been asked this constantly, and I get it—nobody wants mystery fibers floating around the bedroom. Here’s the thing: some foam beds used fiberglass in the past as a cheap fire barrier, which led to some very messy stories when people unzipped the cover. Let’s clear up what’s going on with Nectar right now, and how you can check your own mattress with zero drama.

The short answer

As of today, Nectar markets its U.S. mattresses as fiberglass‑free. Instead of glass fibers, they use a flame‑retardant barrier (an inner “FR sock”) made from a knit blend—typically rayon/cellulose with silica‑based fibers—wrapped around the foam core. That’s the brand line, and it matches what I’ve seen on recent law labels. That said, labels can vary by model and region, and older or secondhand units are a wild card. If you’re asking “is there fiberglass in Nectar mattresses” about a specific bed at home, the only definitive way to know is to read the sewn‑in law tag or ask Nectar support for the FR barrier composition tied to your order number.

Why fiberglass ever showed up in mattresses

Mattresses sold in the U.S. must meet flammability standards (CFR 1632/1633). Fiberglass got popular because it’s cheap, inert, and passes those burn tests. The issue isn’t that fiberglass spontaneously escapes—it’s when someone unzips or damages the cover and exposes the inner sock. Those tiny fibers don’t play nice with lungs, clothes, or carpets. That’s why you’ll see “do not remove” warnings on many covers, including Nectar’s. To be clear, a fiberglass‑free FR sock aims to deliver the same protection without the thorny cleanup risk if the inner layer is ever disturbed.

How to verify what’s in your Nectar

Skip the guesswork and go straight to the law label sewn to the mattress body (usually near a bottom seam). You’re looking for the materials list for the inner cover or fire barrier. If it says “glass fiber,” “fiberglass,” or similar, there’s your answer. If it references rayon, viscose, polyester, cotton, aramid, or silica without any glass terms, that points to a fiberglass‑free sock. Still unsure? Ping Nectar support with your order number and ask for the FR barrier composition for that exact model and build. For UK/EU models, labeling and rules differ, so don’t assume U.S. details apply. And if you bought used, take two minutes to check—the “is there fiberglass in Nectar mattresses” question is easiest to settle with that tag.

Care and safety basics (keep it boring, keep it safe)

Don’t remove or unzip the mattress cover—there’s no prize inside, only the FR sock. Use a washable protector so spills never reach the cover. If any cover panel rips, contact the brand before DIY fixes. In the rare case you suspect fiber release from any mattress, ventilate, avoid aggressive scrubbing, and use a HEPA vacuum. Then document everything and talk to the manufacturer about next steps. Simple habits here save headaches later.

What I recommend if you want zero‑doubt peace of mind

If fiberglass‑free is your non‑negotiable, you’ve got options. Many premium foam and hybrid models now use silica/rayon or aramid blends without fiberglass, and natural latex beds often rely on wool or specialized knit barriers. If you’re eyeing Nectar specifically, I’ve covered comfort, cooling, edge support, and the FR barrier details in my full Nectar Mattress Review on Consumer’s Best. Give it a skim before you click “buy”—I keep it plain‑spoken and helpful.

Bottom line

Nectar’s current U.S. lineup is advertised as fiberglass‑free, using a knit FR sock (often rayon/cellulose with silica) instead. That aligns with what I’ve seen, but I don’t assume—neither should you. Check the law label on your bed, especially if it’s an older build or a secondhand buy. If you still find yourself wondering “is there fiberglass in Nectar mattresses,” a quick note to support with your order ID gets you a straight, documented answer. And if you want my take on how Nectar stacks up against similarly safe picks, you know where to find me at Consumer’s Best.