Later School Start Times

I think schools should start at 10:30 because, when students start before 7 A.M they are not getting enough sleep leaving them with little to no energy to do any work in the morning. Some teachers get annoyed with students because they are always asleep in their class. Students should get the required amount of time of sleep at least 8.5 hours or 9.5. Also getting enough sleep is good for health and academic performance