Does this mattress sleep hot?

No, it runs notably cool, earning a perfect 10 out of 10 for cooling. A copper-infused cover with phase-change material sits over breathable comfort foam and a micro-coil layer, so heat escapes instead of pooling. Measured peak surface temperature lands near 29.6 C, cooler than a typical bed. If sleeping hot has pushed you off memory-foam beds before, this firm hybrid is built to stay temperature-neutral all night.

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