Staying Up Late

Recently I have been staying up pretty late these last few weeks. I have gotten into bed at around midnight almost every night. Somedays (like last Sunday) I've stayed up until 2:15 in the morning.That's probably not the smartest thing either with finals coming up quick. I dunno, I just have because of the fact I wanted to play guitar and stuff everyday. With school and work everyday that is actually pretty hard to fit in... So if I've been grumpy, lo siento?