Swedish time: 1:03 AM

Yeah, so it's full action at home right now: me and my little brother play multiplayer in Perfect Dark forever (with very high Surround sound, of course), the parents are visiting some acquaintances, and we simply haven't even considered going to bed.
I don't feel tired AT ALL (seriously, not even taking a nap in my bed is that tempting; I've tried) and going to bed would just feel weird right now.

The problem is, tomorrow it's New Year's Eve, and I dunno if I will stand two all-nighters in a row; so, how would you do in my situation?