Does this tight-top mattress sleep hot?

No, it sleeps notably cool, scoring 8.6, with a measured peak surface temperature around 30.1 C, toward the cooler end for any mattress. The pocket-coil core leaves open space for air to move through the bed instead of trapping heat the way a solid foam slab does, while the breathable cotton-blend cover and comfort foam pull warmth off the surface. For anyone who tends to overheat, this hybrid runs cooler than a typical all-foam bed at the same firmness.