The Blue Touch 300 Firm model combines the feel of an extra-firm mattress with the benefits of Serta’s TempActiv™ temperature regulation system. It combines TempActiv™ Gel Memory Foam with a layer of EverCool® Fuze Memory Foam for enhanced cooling comfort that also supports every curve of your body. It also features a layer of Deep. Reaction™ Memory Foam for a substantial, deep-down feel not often found in traditional memory foam. This mattress is finished with Serta’s TempActiv™ Touch Fabric for enhanced cooling comfort.