Now I have the ceiling for about 4 weeks and I have to say this is a totally ingenious invention.
Due to its size (150 x 200 cm) to fit exactly on my bed and my feet do not look out of the open air. Usually I sleep mostly with socks on their feet, because I have always Eisfüße. But with this ceiling even my Eisfüße nice and warm and it is so beautiful on the feet by the cuddly fabric ceiling.
So even for one person alone I would rather recommend the large ceiling, because the small blanket has not necessarily served 80 x 160 cm) with me, even though I'm only about 1.68 m tall. Within minutes you will be cozy and warm. I measured the temperatures on the basis of a normal thermometer, as I had put it under the covers and found that: (at level 6 / the highest)
After 5-15 minutes 37.2 degrees:
after 20 minutes: constant 42.7 degrees
After about 3 hours it switches off by itself. But if you then switch to 0. (So off) and turn-ons again after a few minutes, then it is warm again as before.
I can not say anything because I have not yet washed on the washing process.
Heat Also I do not have as much in the bedroom. So you can save heating costs tidy with this ceiling.
However, you should not put on the ceiling, since the wires could break.
Conclusion: I do not want to give the ceiling.