stickerrocks
Oddsocks My DS has gone from being a naturally early riser like me (he and I were up with the larks for years) to finding it very hard to wake up by 7am. He says going to bed earlier doesn't help because he can't get to sleep then anyway.
There have been a lot of studies which show that the teenage body clock is just not suited to early starts. At least one school moved to a later start (I think it was 10am) and their results improved.
I'm not sure what the answer is other than the usual no screens for at least an hour before bed etc. But even that is a challenge at the mo because if they've been working hard they obviously want some downtime before bed, and so much of that involves screens of some sort.
DS has been getting up (just) in time for a 10am start on revision during the hols, so he's going to find the return to school hours tomorrow difficult. I think during study leave I'm going to insist that he's up early, otherwise the morning exams will feel like the middle of the night!