Experience the ultimate in plush, body conforming comfort with the luxurious pillowtop design of the Beautyrest Recharge Derbyshire. Starting with the targeted support of 800 density Beautyrest pocketed coils, this plush mattress provides additional back support thanks to Beautyrest Gel Lumbar Support, exclusive to Rooms To Go. Topping the innovative support system is four types of performance foam, including AirFeel and AirCool foams directly above the innerspring system, with additional layers of GelTouch and Energy foams in the pillowtop for a supremely soft feel. Gel infused memory foam absorbs excess body heat to keep you cool and comfortable, while high density foams not only mold to your body for individualized support, but also act as shock absorbers, allowing you to rest undisturbed when your sleep partner moves. Helping to promote airflow throughout the mattress is TENCEL-infused SurfaceCool fiber at the mattress surface and the total surround ventilated AirCool BeautyEdge foam encasement with QuantumLock, which also strengthens the mattress edges to keep you supported no matter how close to the edge you may roll. 10 Year Limited Warranty