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. Serta's award-winning iComfort F10 12" Medium Mattress presents a sleep experience that is cool, comfortable, and restorative. Resting between a cool-to-touch CoolTemp Cover and edge-to-edge supportive Serta Foam Core, is a layer of TerraFusion Memory Foam that offers a pressure relieving-feel and reduced motion transfer for an uninterrupted sleep.