Polyester TWIN SIZE: SOFT AND COMFORTABLE ?C Never climb into cold sheets again. Electric Heated Blanket in ultra soft comfortable microplush fabric. Twin and Full size include 1 controller. Queen and King size include 2 controllers. 100% Polyester. THERAPUETIC FULL BODY RELIEF WITH ADJUSTABLE HEAT SETTINGS ?C The cozy microplush blanket has ultra-thin heating wires for added comfort. The Digital Controller Includes Auto-off and 10 heat settings. SAFETY – ADVANCED TECHNOLOGY ?C The controller includes an auto shut-off timer for safety and reliability. All Biddeford Blankets are tested and approved by a 3rd party (UL or ETK Intertek) to comply with industry safety standards. MACHINE WASHABLE and EASY CARE ?C The blanket is machine washable and dryer safe for your convenience. Make sure to disconnect and remove controllers before washing. Do not use an extension cord or power strip for these blankets. 5 year limited manufacturer’s .