Upon opening the package, I was disappointed. This is not an electric blanket but a handle cover with a kangaroo pocket in which is inserted a small heated mattress. I bought a round in coverage at Aldi, much better, thicker and sweeter than this, less than 10 euros! The difference is that it this kangaroo pocket and a flap for the feet. I'll test it when it's cold, but I doubt that the little belly heating warms my back and my feet.