The Sunbeam Heated Water-Resistant Quilted Mattress Pad features an exclusive wiring system that senses and adjusts throughout the blanket for the highest peace of mind. Comes with a deluxe controller with 20 heat settings, Selectable Auto-Off, Pre-heat, Ambient temperature compensation, and LCD screen with backlight dimmer. Only from Sunbeamover 100 years of quality and customer satisfaction! 100% cotton, 200 thread count Quilted hourglass construction Skirt fits up to 19" mattresses Machine Washable Fits Twin-size mattresses.