What should I do, go to bed and try to get some sleep or just hang out on Fluther until it's time to go?

Okay, here’s the problem. I have kinda turned my days and nights upside down (as I always do when I don’t have to work for a week or more), meaning I am not sleepy until 3–4 a.m. I need to be up by 5.30 tomorrow morning to go to the train station. Now, should I try to go to bed early and try to get some sleep, or should I just hang out at Fluther or watching Battlestar Galactica DVD-box until it’s time to go? The train ride is roughly 6 hours.