Is it safe to sleep on a polyurethane foam mattress?
Not ideal. Polyurethane foam releases VOCs for years and usually contains flame retardants.
What's actually in it
Memory foam and polyurethane foam mattresses are made with isocyanates, polyols, and blowing agents. The "new mattress smell" is residual solvents and VOCs. Most foam mattresses also contain flame retardants to meet U.S. fire safety standards.
You spend about a third of your life on a mattress. Off-gassing continues for years, though at decreasing rates.
What the research says
A 2025 screening study in Environ Sci Technol mapped VOCs and flame retardants across household product categories, with foam furniture and mattresses among the heaviest sources. A 2025 study in Sci Total Environ showed organophosphate flame retardants are amplified by sweat, which increases skin transfer during sleep.
Cleaner options: natural latex, organic cotton, or wool mattresses with no added flame retardants (wool passes fire tests naturally). GOLS and GOTS certifications tell you what's inside. If you keep a foam mattress, air new ones out in a well-ventilated room for a week before sleeping on them.
The research at a glance
| Study | Journal | Year |
|---|---|---|
| Chemical signatures for categories of household consumer products. | Environ Sci Technol | 2025 |
| Sweat-amplified dermal transfer of PFAS and organophosphate esters. | Sci Total Environ | 2025 |
What to use instead
Browse our vetted, non-toxic alternatives. Every product is third-party certified.
Shop Non-Toxic Home