Biddeford 5302-9051128-100 Quilted Sherpa Electric Heated Mattress Pad Queen Polyester Save money on heating bills by turning down the thermostat and using this electric mattress pad at night! Digital Controller with 10 Heating Settings and 10 Hour Auto-Off for safety 100% Polyester. Machine washable for convenience. Fits mattress pads up to 22 inches deep. Ultra-thin wires for added comfort. Manufacturer's Five Year Limited Warranty