Serta iComfort Blue 300 Firm
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The Blue 300 Firm model combines the feel of an extra-firm mattress with the benefits of our latest breakthroughs in memory foam technology. It combines our 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.