Our Beautyrest heated mattress pad contains Secure Comfort technology, which is designed to virtually eliminate Electromagnetic Field emissions. The soft flexible wires and quilted top ensure your comfort. The fitted skirt is designed to create a perfect fit and fits up to a 18-inch mattress. Our heated mattress pad is machine washable, with a 10 hour auto shut off, and 5 setting temperature control. Twin, Twin XL, and Full size have one controller, Queen, King , and Cal King size have 2 controllers. Includes manufacturer's 5-year warranty Features: 100-percent Polyester soft brushed microfiber with 3M moisture management treatment Soft quilted top heated mattress pad with 3M Scotchgard Fit mattresses up to 18 inches in height Features 5 heat settings temperature control and a 10-hour auto shut off 2 separate temperature zones for Queen, King and Cal King sizes (2 controllers) Proprietary extra hotspot sensing technology for extra safety Compatible with automatic timers and Smart Home Outlets (Auto-Run Patent) Proprietary overheating technology grants additional protection and extends product life Temperature Boost technology offers faster and safer heating Soft flexible wires provide durability and comfort Virtually no electro-magnetic field emissions 100-percent UL certified (US standard) Machine washable for easy care Manufacturer's 5-year limited warranty included Size Dimensions: Twin Heated Mattress Pad: 39 inches wide x 75 inches long with 15 inches pocket depth Twin XL Heated Mattress Pad: 39 inches wide x 80 inches long with 15 inches pocket depth Full Heated Mattress Pad: 54 inches wide x 75 inches long with 15 inches pocket depth Queen Heated Mattress Pad: 60 inches wide x 80 inches long with 15 inches pocket depth King Heated Mattress Pad: 78 inches wide x 80 inches long with 15 inches pocket depth Cal King Heated Mattress Pad: 72 inches wide x 84 inches long with 15 inches pocket depth