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" 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.Size :1 Heated Mattress Pad:54"W x 75"L + 15"DMaterial:100% Polyester soft brushed microfiber with 3m moisture management treatmentFeatures:Soft quilted top heated mattress pad with 3M ScotchgardFit mattresses up to 18" in heightFeatures 5 heat settings temperature control and a 10-hour auto shut off2 separate temperature zones for Queen, King and Cal King sizes (2 controllers)Proprietary extra hotspot sensing technology for extra safetyCompatible 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 heatingSoft flexible wires provide durability and comfortVirtually no electro-magnetic field emissions100% UL certified (US standard)Machine washable for easy careManufacturer''s 5-year limited warranty included