Sunbeam Warming Heated Electric Mattress Pad, Size: Twin Size: Twin measures: 75"L x 39"W , Single Control, 100% Polyester, fits mattress up to 16" deep 10 heat settings Now up to 19% warmer. Thermofine technology senses and adjusts to deliver consistent warmth while you sleep For safety, the Sunbeam Warming Mattress Pad features a 10-hour, auto-off feature Care: machine washable and dryer safe