The Sunbeam Heated Quilted Mattress Pad features an exclusive wiring system that senses and adjusts throughout the blanket for the highest peace of mind. The controller features 10 heat settings and a 10-hour Auto-Off, pre-heat and an LCS display with backlight dimmer. Only from Sunbeam over 100 years of quality! 100% polyester & vertical quilted construction Skirt fits up to 18" mattresses Machine washable Twin size.