I prefer that my 13 y.o. DD continue to get a good amount of sleep but maybe my expectation needs to be adjusted. How many hours do you all feel comfortable with? Esp as they get even older? We had a blow up last night when I told her to go to bed @9:30 pm. She usually wakes up @7am. A post about time management, etc., is probably relevant, but I don't want it to get too off topic either. TIA