Does the euro-top trap heat?

No. Cooling rates a perfect 10 out of 10. A copper-infused phase-change cover sits above breathable foam and a micro-coil layer, venting heat instead of holding it, with measured peak surface temperature around 30.3 C, cooler than typical. The extra euro-top padding does not change that, since the cooling materials sit right at the sleep surface. Warm sleepers who still want a plusher firm feel get cushioning without the heat.

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