Living at one's place of employment: a sleep-in housekeeper.
- An instance of sleeping in, sleeping late, sleeping until one feels fully refreshed rather than rising at a prespecified time.
- I didn't have anything to do Saturday morning, so I decided to have a sleep-in.
- (intransitive, idiomatic) To sleep late; to go on sleeping past one's customary or planned hour.
- On a rainy Saturday, after a busy week at work, he closed the curtains and decided to sleep in.