Sunbeam Imperial Queen 140-Thread-Count Polyester Cotton Blend Comfort Heated Mattress Pad Cotton-blend Queen-sized heated mattress pad in white with uniform and consistent heating Dual SimpliTouch dial controls with independent adjustments, 10 temperature settings, 10-hour auto-off, auto-dimmer ThremoFine Warming System automatically responds to body, bed or room temperature changes 50/50 cotton/polyester blend, 140-thread-count top; 100 percent polyester skirting fits mattresses up to 18 inches deep Machine Washable and Dryable.