Sunbeam Premium Quilted Heated Electric Mattress Pad Box Pattern Twin 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% Digital Control with Personalized Heat Settings, Auto-Off and Preheat Features, single for Twin and Full Sizes, dual for Queen and King 100% Quilted Cotton Top, Fits Matresses up to 21 inches deep Includes 5 Year Limited Manufacturer's Warranty from Sunbeam