Definition of sleep in:
°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."
Definition of sleep in:
°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."