Sunbeam Therapedic Deluxe Quilted Heated Electric Mattress Pad Twin Size Cotton 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% Digital Control with Personalized Heat Settings, Auto-Off and Preheat Features 300 Thread Count 100% Quilted Cotton Top, Fits Matresses up to 21 inches deep, 9 oz Per Square Yard Fiberfill 5 Year Manufacturer's Limited Warranty