I had already times a overblanket the company Beurer and am very satisfied. The first ceiling is gone, unfortunately, after 5 years break. The important thing is to know that there is a blanket and you do not to, but he shall lay under the covers (otherwise the heating wires can bend and thus go broke). So please think before you buy, whether you want a sub-bed heat blanket or a blanket. The ceiling is wonderful washable at 40 degrees. The connector is detachable for the washing process. The blanket has 6 temperature levels, which I mostly the stages 3 and 4 are sufficient. The electric blanket heats very quickly. Very good, I find that the electric blanket off after three hours. You then must not only be irritated by the still burning light on the switch. Just then off and on again, if the ceiling is to reignite. The heating wires are not quite to the edge. Therefore, I have (again) the larger ceiling added myself 200 x 150 cm. You should think before you buy and where you possibly attached or lying down the switch on the bed. After all, who at night often rumwälzt, thus also moves the switch which may then strikes the bed. Possibly the switch between the mattresses pinch or attach somewhere with a cord. But it is worth again and again to buy the ceiling.