A champion of comfort for all, Serta has pioneered sleep innovation for more than 90 years, bringing quality products to more than 150 countries worldwide. The award-winning iComfort F30LTX 13.5"" Plush Mattress by Serta offers to deliver a sleep experience that is cool, comfortable, and restorative. Between the cool-to-touch CoolTemp Cover and edge-to-edge supportive Serta Foam Core are layers of TerraFusion and EverCool Fuze Gel Memory Foams that deliver pillow-like body conforming support.