Serta has combined Cool Action™ Gel Memory Foam with an advanced Individually Wrapped Duet™ Coil-in-Coil Support System. This results in a sleep system with intelligent cradling and cooling comfort at the sleep surface and exceptional individual support for each sleep partner. Our new hybrid models combine the same EverFeel® Triple Effects™ Gel Memory Foam used in our all-foam models with our most advanced Duet® Coil System. We offer a wide variety of iComfort mattress models ranging in feel from luxuriously plush to extra-firm, so you can find the level of comfort that’s perfect for you.