Sunbeam Thermofine Quilted Striped Heated Electric Mattress Pad King Size Polyester Sunbeam, America's #1 Heated Mattress Pad! Save up to 10% a year on your heating bills by turning on your heated mattress pad and setting your thermostat back by 10%-15% 10 Personalized Heat Settings, 10 Hour Auto-Off 5 Year Manufacturer's Limited Warranty Manufacturer's Warranty, Twin Size (39 in x 75 in); Full (54" x 75"); Queen (60 in x 80 in); King (76 in x 80 in); Fits Matresses up to 18 inches deep. 100% Polyester