OK a few days ago I caught the flu, and yesterday was the first day of the semester. The flu really screwed up my sleep schedule. The night before the first day of class I only got 20 minutes of sleep the whole night and had to get up for school at 6am. I went through all yesterday fully awake and energized but I couldn't fall asleep until midnight. Then today I slept through all 3 of my alarms, making me miss the first day of one of my classes. I checked the alarms and they all went off, but were turned off. Apparently still mostly asleep I turned off the alarms and went back to sleep, but I have no memory of doing so. I want to be one of those people who gets tired at the right time, falls asleep, then wakes up well rested 5 minutes before the alarm goes off. What can I do to get my sleep cycle trained that way?