Well I ended up staying up all nite. I thought was going to finish studying, but I didn't until 7:10. Took a nice hot shower, got dressed, ate breakfast, then went to take 6 hours of finals. Did great in the first final (Chemistry, the one I was studying so much for), not so good in the second (Calculus). The next day I had Matlab, and during that one I decided it would be better to study a bit beforehand for my finals....Monday I wasn't motivated enough to study a whole lot for my Matlab final.
All in all, came out with A, B, B, C, C. Coulda done better in Matlab (B) and Calc (C), but I'm happy with Chem (C) and English (B). A was a 1 hour psych class.
Thanks for everyone's help. It definately seems that the best thing to do when you're only going to get a couple hours of sleep is to stay up the rest of the night. I've had that experience of not remembering after going to sleep (when I crammed all night) and it didn't feel right (or fair) at all. But staying up all night studying and then running to take the final definately left me feeling confident: Only a few questions I didn't know absolutely for sure.