3am? This implies that the party is in a rush to be over by morning.

No no, the trick is to just keep the party going. Indefinitely. A good party will have several police callouts over the course of several weeks. You will need to recarpet your home afterwards, but the takings from the roulette and poker tables will cover it. You will make friends, lose friends, and people will thank you for it in 20 years, never mind the next morning.

I think my longest party stretched to about five weeks - of course people came and went, and having a core of unemployed/student insomniacs to keep it going through the wee hours of Tuesdays helped (for many saved themselves for Wednesdays, which had a particular focus on gambling) - and in the end it only ended because some wag decided to list the party on google maps, and I only narrowly squirmed my way out of charges over running an illegal casino.

Anyway. Parties should not be single night or day affairs, in my view.