Sunbeam Premium Luxury Quilted Heated Electric Mattress Pad - Queen Size Cotton Sunbeam, America's 1 Heated Mattress Pad Save up to 10 percent a year on your heating bills by turning on your heated mattress pad and setting your thermostat back by 10 to 15 percent Digital Control with 10 Personalized Heat Settings, Auto-Off and Preheat Features Premium Softness, 100 percent Cotton Top, 100 percent Polyester Bottom, Fits Mattresses up to 21 inches deep