Late night would work pretty well, I'd think. I don't know about others, but I don't tend to do much late at night at the con. I just chill in the room and unwind, more often than not. I don't know if I'd actually be pulled away from the con space (cause I'm kinda like a bee in its hive once I'm at the hotel), but it would be a good time if I was planning to go do it, heh.