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 includes 10 heat settings and a 10-hour Auto-Off, preheat, and an LCD display with backlight dimmer. Only from Sunbeam over 100 years of trusted quality! 100% polyester with vertical quilted construction. Skirt fits up to 18" mattress. Machine washable.Fits KING-size mattress.