Meine Kinder tun Nachts die Decke weg und schlafen die ganze nacht ohne Decke. 5W instead of 9W. We waited 2mnths to review so she had a chance to really use these and see how they worked, and we told her wed return them if needed, but she is happy with them. Upon receipt I was impressed with the finish and quality of this unit. First thing I noticed right away was that it was already fully charged and usually anything Bluetooth or electronic these days has to be charged before using so that was awesome. I am still studying what is the best way to get around this. I ordered a 9 to compare. 0 EU N, which ARE NOT the SOFT FOOTBED. I got a size 11 when I am a womens 10. That was good and bad but it made it easier to assemble because if you dropped one, there was an extra and you just picked up the extras at the end.