Same as Nirvana fan, when I first got FFX, I played that game nearly a whole night, I had a few breaks, each lasting 10 minutes or so, then I'd go back to FFX. I tried to stay up the next day but fell asleep around 9am.
I also did the same with Xenogears, but it was during the day and from 10am to 4 pm or so.
I only stay awake playing games for that length of time when I play
Tekken or something, Most of the time im on Practice mode learning moves.