My heater was broken and i am still working on to repair, i bought this heated dual control pad to make sure i  won't freeze at night. It works pretty well, normally turn on 10 minutes before you go to the bed and it will makes you feel warm when getting in. The pad is thick and quality is good. The most import for me is i always forgot to turn off and it will do automaticlly after maybe 8 or 10 hours, very safe product.