Does this mattress sleep hot?

No, it stays cool for a deep plush bed. Cooling scores 9.3 out of 10, with peak surface temperature measured near 31.1 C and the rise over your baseline held to the 7.1 to 9.8 C range. Two inches of gel-infused foam pull warmth off the body while the 815-coil pocketed core keeps air moving instead of trapping it like an all-foam build. Staying this temperature-neutral on a sink-in surface is a genuine strength.