The iComfort Hybrid Blue Fusion mattresses, from Serta, represent the latest technology in bringing you a cool, supportive and comfortable sleep environment. Cooling features such as TempActiv™ Balance Cover - breathable and absorbent and TempActiv™ Gel Memory Foam, which absorbs and dissipates excess heat. The Hybrid Coil™ Support System, Serta's individually wrapped coils adapt and conform to your shape providing excellent support and long lasting durability. In addition to the Memory Foam, a layer of Serta™ Micro Hybrid Coil™, adds a subtle support and durability. Many firmness's and comfort choices means there is a mattress just right for you!