This premium hybrid mattress combines the plush, cushioning comfort of a pillow top mattress with our most advanced temperature regulation technology. It features our exclusive TempActiv™ gel memory foam and a layer of EverCool® Fuze Gel Foam for enhanced airflow and pressure relieving comfort. The Blue Fusion 4000 is finished with TempActiv™ Touch Fabric for an immediate cool-to-the-touch feeling that helps dissipate heat through the night.