I don't use coffee/soda/sugar/speed and I usually sleep about 6 hours a night. Waking up is a pain but after that I'm good. Good thing too because my first class is usually physics.
lately I've been getting roughly 4 hours of sleep and when I have exams I sometimes go up to 40 hours without sleep. It is terrible. I usually just shower and splash water on my face. sometimes I feel myself struggling to stay conscience during class, but I end up crashing for about 15 minutes, and then I feel so much better.
Man, that`s rough....you really need to get some more sleep....40 hours at once? I`ll do that occasionally, if I really have a lo to get done, but that`s on the weekend.
