sleep in
To sleep late; to go on sleeping past one's customary or planned hour.
Meaning adapted from Wiktionary, available under CC BY-SA 4.0.
“I love to sleep in on Saturdays.”
“Since I finished my final exam yesterday, I plan to sleep in tomorrow morning.”
“After a grueling week of travel and late-night meetings, she decided to sleep in, ignoring the insistent chime of her alarm clock.”
- 01
beauty sleep
Originally, sleep taken before midnight, on the belief that early sleep hours conduce to beauty and health; now (chiefly humorous), sleep at any time needed by one to stay beautiful; (countable) an instance of such sleep.
- 02
big sleep
Death.
- 03
cry oneself to sleep
To cry until or to fall asleep.
- 04
eat, breathe, and sleep
To devote one's time obsessively to.
- 05
eternal sleep
Death
- 06
fox sleep
Feigned sleep while actually alert.
- 07
go to sleep
To be affected by paresthesia; to go numb.
- 08
one could do it in one's sleep
Said of something that can be done very easily or effortlessly.
Last updated August 10, 2026