My daughter & I go over to my sister's for NYE. We'll have pizza & snacks, play games, watch a movie, & watch the ball drop on TV while we do noisemakers and drink sparkling grape juice. We sleep over and have donuts or cinnamon rolls for breakfast before heading home.
My teenage nephew has 3 or 4 of his friends over at the same time but they spend the entire time in the basement gaming so we only see them for dinner & when they come up for air.
They're always still asleep when my daughter & I leave in the morning.