Polyfoam (Polyurethane Foam): Definition & What It Means for Buyers
A general-purpose foam used as transition and support layers in nearly every modern mattress. Cheaper and more variable in quality than memory foam or latex.
Polyfoam (Polyurethane Foam): Definition & What It Means for Buyers from Sleep Sage's independent testing team. Every recommendation on this page was earned through measured performance — not paid placement.
What you'll find on this page about polyfoam: lab-measured scores, hands-on testing notes, our recommended buyer profile, current pricing intelligence, and a clear verdict from the Sleep Sage editorial team. Page last reviewed August 2026.
A general-purpose foam used as transition and support layers in nearly every modern mattress. Cheaper and more variable in quality than memory foam or latex.