We tested a $349 cooling mattress and compared it to our $1,200 top-rated bed for hot sleepers — here's which one to buy in 4th of July sales

Wondering how much extra cooling clout you'd get when buying a luxury hot bed for sleepers versus a cheaper model? We compare lab data for the $329 SweetNight CoolNest Memory Foam mattress to the luxury $1,200 Bear Elite Hybrid to find out.