In another review was criticized that the UB 100 is indeed 200cm long but are only 150cm heated and the headboard so remains unheated. I have now clarified with the manufacturer, and that's true. Only I do not see the downside. Suppose the 200cm length would fully heated. Then you could turn the pillow when switching on the heating and heat up the pillow with. And contact when inserting chairs the pillow again, so that one is on a heated pillow. I have even tested with a second blanket so, but at least to me is the extremely annoying. The heated pillow keeps the heat quite long, and at least then I start to sweat immediately. At the body's heat is very pleasant, but a heated pillows, at least I do not ever use. The UB 100 is therefore 200cm long, so that they can draw on the mattress like a real fitted sheets completely. Smaller electric blankets have always been the problem, that they slip, it comes to wrinkles, and if they threaten to overheat the wrinkles then, turn off and are defective. The problem is solved perfectly with the UB 100. My tip would be: Whoever the pillow like want heated, a heating pad can lay on the pillow. Or you push the heating pad under the pillow case and then heated pillow on the lowest setting. But this is a solution for people who winter in the bedroom really arctic temperatures.