In my experience, there are three types:
- Alive and well, as here - they are up at 6am, clearing up, making breakfast, rolling other people out of the way to vacuum etc.
- Still hungover, as here - the ones being rolled out of the way etc
- Still partying - arrive at 6:am straight from another party, hoovering up leftover pizza, talking at both the above types and keen not to stop the party until Jan 2nd at the earliest.
Sweater, n. Garment worn by child when its mother is feeling chilly.
― Ambrose Bierce, The Devil’s Dictionary