I understand this period. We force kids to get up and go to school way too early, especially in the teen years. I forget what the researcher said, but it was something like starting high school at 9 to 10:00 in the morning.

For me, it doesn't matter much. I've blacked out the windows in my bedroom because any light while I sleep isn't good, and morning sunlight triggers migraines, which isn't a great way to start the day. Since I'm on the far eastern edge of the Eastern Time Zone, I will miss a lot of summer daylight.