The serial plush heated mattress pad is warm. It has 10 different settings and you can set it a timer from 1 hour to 12 hours. It doesn't take that long for it to start getting warm and that's nice if it is cold outside and you wanna get warm.  The only thing I didn't like about it is that the controller felt a little warm not hot but it seem to be getting warm. They have a spot for the control to go through the pad where it is easier to control it. And able to get to it. It also has two controls for the king size that if one of you don't want to be too hot then you can set it higher or lower depending on your preference. The controls can be unplugged from the pad itself where you don't have to worry about the cords. Overall it is a nice heated mattress pad.