Children need to learn discipline. School is where they learn.
Not sure why downvoted.
I had the same thing happen in college. When classes start at 3 I go to sleep at 8am.
Here's a reference for that (from 2002): http://bul.sagepub.com/content/86/633/3.full.pdf
> To take your argument ad absurdum, if your job had started at 6pm, would you have gone to bed at 11am?
A lot of people that do shift work sleep and wake at odd hours. Also, during undergrad and grad school I tried to schedule nothing before ~2pm. I would sleep from 6am to 2pm. ... Not sure if any of this applies to high schoolers, though.
Of course, maybe it's harder to do this nearer the poles but, in the tropics we get near equal hours of day and night.
I have found sleeping early and staying away from modern tech 30-45 mins. before sleep to be _immensely_ beneficial.
For a while I had to wake before 6:00 and it really sucked at winter when sunrise here is after 9:00. This has little to do with the amount of sleeping. To my surprise I managed to switch to going to bed before 10pm. It is precisely waking up in the dark that was problematic.
Schools operate as if the majority get tired and go to bed between 7 pm and 10 pm. This is just wrong, in world with TV and internet and electricity.