About this item MATERIAL&DEEP POCKET: Heating Mattress Pad made from premium polyester material. Electric heating wires are evenly distributed in the middle.The heated mattress pad has 5 ounces of fill, so you shouldn't feel the wires. It is very durable.This mattress pad has 8-21" deep pockets that fit most mattresses. The skirt contains strong elastic that helps it stay put. HEAT SETTINGS:There are 11 different heat settings （L-1-2-3-4-5-6-7-8-9-H）now.You can choose the suitable temperature (ranging from 84 - 108°F) according to your requirements on the handy control panel, providing you with a warm sleeping environment.We have carefully designed 1-9 hours timing function which allows users fall asleep freely. At the same time, it also has the function of overheat protection. VIRTUALLY NO EMF: Our electric mattress pad is engineered for the lowest electromagnetic field radiation possible. The heating element is designed with an evenly spaced pattern, which enables even warmth distribution.100% UL certified for maximum safety. HEAT ONE SIDE & STAY COOL THE OTHER: The queen, king and california king heated mattress pad comes with a dual side controller,While The twin and full size pad come with single control.Both spouses can customize their side of the bed’s temperature.2 Individual Dual controllers give each person the power to choose their own heating preference. Allowing you to be quickly heated from the bottom up or quickly cool down as you wish. WARRANTY SERVIC:6 Month Limited Warranty - That is a 6 month promise of savings and service. Please contact our customer service for assistance if you have any questions or concerns about the product.