Sleep has never been so cool. The iComfort® Limited Edition plush mattress contains multiple layers of cooling technology, including our cool-to-the-touch Cold Touch™ cover and comfort-inducing iComfort® Gel Memory Foam. Pairing with the Serta® Foam Core ensures you have a cool, comfortable sleep experience. Cold Touch™ Cover: This breathable knit cover gives you an instant cool-to-the-touch sensation the moment you lie down. iComfort® Gel Memory Foam: A fusion of cooling gel within premium memory foam, this special blend promotes cooling by increasing airflow and dissipating heat. Serta PillowSoft™ Foam: A special extra-soft foam that gently hugs your body in a comfortable embrace. Serta® Foam Core: Our new and improved Serta Foam Core provides durable support for any sleep position. With consistent support from edge to edge, you'll be comfortably supported all night long.