I can only echo this. I was always staying up late before school, until 12-1 and waking up at around 7 on weekdays. When I got home I almost always took a nap,

I can only echo this. I was always staying up late before school, until 12-1 and waking up at around 7 on weekdays. When I got home I almost always took a nap, from half an hour to a full occasionally. On weekends I stayed up late too, but then I slept a lot longer so I got about 10 hours or more. Now when me and my girlfriend lives together I've been forced to adjust and I often go to sleep at 10, read a bit before sleep and wake up after about 8 hours even on weekends. I feel a lot better now and I wouldn't want to go back to how I had it only a year ago. I haven't really thought about sleep deprivation but in retrospect it kinda fits.