It was a good idea, but it will only let you keep it on for 30 minutes or 45 minutes. I got this to help keep my girlfriend warm because i always run way hot and her way cold. Well, with the 45 minute shut off if you fall asleep you wake up freezing. Also, there is no way to regulate the temperature like there is on all other heating blankets that i have ever used. It is just one heat level and its not all that hot, more like a warm, so over all I'm not to happy with this product.