I've heard this before--that teenagers need more sleep than young children and adults and that they have a different sleep pattern. Now a study has shown that starting school later improved attendance, attitude and grades for high school students. And this was only changing from 8:00 am to 8:30 am. The study was published in the Archives of Pediatrics and Adolescent Medicine.
Of course here in California we do have early morning seminary. And some of those start very early--6:00 am in one of the wards we attended. We were relieved to find that seminary started at 7:00 am in the Folsom Stake. Still, I do wish we had a later start. My sons that have been home schooled still came home from early morning seminary, did one subject and then took a nap before they started their day of work. My two older kids that were not home schooled had to go to seminary at 6:30 am, and then drive to school for the day, getting home after sports, about 4:00 pm, tired. They would fall asleep.
Home school does allow us to set our time, and like the old days of naps for kindergarteners, my teenagers sometimes want to get their nap time before moving on to the next subject. We can accommodate that.
Get you nap mat out.