Using this heated mattress pad is super easy. First, lay it flat on your mattress with the non - woven fabric side down. Plug it in and use the controller to select your desired temperature from the 10 available settings. You can also set the 1 - 12 hour automatic shutoff timer according to your needs. When it comes to safety, always make sure the pad isn't folded or bunched up while in use to prevent overheating. For maintenance, simply toss it in the washing machine as it's machine washable. Remember to follow the care instructions on the label. With its 5 - year manufacturer's warranty, you can use it with confidence for years to come.