Memory Foam vs. Poly Foam

They look the same, but one melts under your body heat while the other fights back. Here is how to tell the difference.

Viscoelastic (Memory) Foam

Heat ReactiveSoftens when warm (under your body), stays firm when cold. This creates the "melting" sensation.
Zero NoiseAbsorbs 100% of motion. Great for couples.
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Slow ResponseTakes 3-5 seconds to return to shape. Leaves a handprint.

Standard Polyurethane Foam

Instant ResponseBounces back immediately. No "stuck in the mud" feeling. Used in Tuft & Needle, Casper Original.
Temperature NeutralDoes not trap heat as aggressively as memory foam.
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Lower DurabilityOften used as a budget alternative. Low density versions (under 1.8 PCF) degrade quickly.

Which One Do You Need?

Choose Memory Foam (Viscoelastic) if: You have deep pressure points (hips/shoulders) and want that classic "hug" feel. Brands: Nectar, Tempur-Pedic.

Choose Poly Foam if: You rotate positions frequently and hate feeling stuck. It provides a more traditional, floating feel without the quicksand effect. Brands: Casper (The "AirScape" foam is poly foam), Tuft & Needle.

Wait, what about Latex?

Latex is the "other" foam that many people confuse with memory foam. However, it is fundamentally different in both feel and lifespan.

See the Memory Foam vs. Latex comparison guide →

Viscoelastic (Memory) Foam

Standard Polyurethane Foam

Which One Do You Need?

Wait, what about Latex?

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