When we do manage to get some time to hang it, it's usually a marathon, though. 2 - 3 AM is not unlikely. Someone asked me the other night, "So what the heck do you guys talk about so long when you're together?"
Funny thing is, we don't talk so much, come to think of it. We hang out, do thing, watch movies, whatever, but there isn't a ton of talking going on. Yet this is one of my best friends.
Does that make sense? Do you have friends like that?