Topic of the Day:
The longest that I've stayed awake is probably 40 hours when I was involved with a Relay For Life team here at work. Never again.

(the staying awake part, not the being involved with a Relay For Life team).
I think that the longest I've slept is around 18 hours or so...probably when I was sick or something like that. Surprisingly, I only slept eight hours after staying up the 40 hours for the Relay For Life event.