Ideally I will try to sync my body clock ( circadian rythmn) to the rise and set of the sun, so its more a seasonal thing with my sleep pattern. Supposedly we are more alert early in the morning and in my experience, that is true for the most part.
So on average I will probably aim for 9 hours of sleep (not taking into account the time it takes to fall asleep). I will also try to sleep for a time divisible by 90 minutes so that I may wake up at the beginning/end of a new sleep cycle and feeling fresh as opposed to being woken up by an alarm in the state of deep or NREM sleep.
The general habit of depriving yourself of sleep, common amongst uni students, is one that I find repulsive. No one is doing themselves any favours by continually getting anything less than 6 hours a day. Even worse is getting no sleep at all, trying to study or finish an assignment. That for me is a form of self tortue. Had to resort to an all nighter once... Never again
And yes I am up very early in the morning but only because I'm now on break and want to enjoy sleeping in
