I agree with this as well. No matter how hard I tried, I could not fall asleep early enough to get a decent nights sleep before having to be back at school in the morning. "Just go to bed earlier" and all of the other unhelpful suggestions lofted my way did not solve the problem. As a result, I suffered greatly with chronic fatigue throughout high school and beyond.
Had I been able to sleep properly during those years, I might be a completely different person now.
To this day, I cannot (and will not) work a Monday-Friday 8-5 job.