I find it easier to stay up late than get up early in the morning.
Plus if you are studying (aka. cramming) for an exam that's on the next day, you know that if you
really have to, you can stay up as late as you want, whereas if you're allocating yourself a few hours in the morning, you might not get as much study done as you would have hoped, henceforth (that 'henceforth' comes from me doing Eng exam today :mad1
studying in the nightime seems much more logical to me.
Besides, when I have to memorise quotes and shiz, I go over them a few times the night before, and I generally can't quote them word for word...
Then I get up in the morning and I know the quotes...
It is magicalll.