Cover your bed with the Beautyrest Heated Mattress Pad using Peaceful Nights technology. This heated mattress pad features a 10-hour auto-shut off timer and a 5 setting temperature control to ensure your safety. The soft flexible wires and nonwoven top provide good comfort, while the fitted skirt perfectly fits to a 18" mattress. Our heated mattress pad is machine washable for easy care. Twin, Twin XL, and Full sizes have one controller, while Queen, King, and Cal King sizes have two controllers. Dimensions: Twin 1 Twin XL Full Queen King Cal King