ENGLISH
REFERENCE

sleep in

idiom
Meaning

To sleep late; to go on sleeping past one's customary or planned hour.


Examples
SIMPLE

I love to sleep in on Saturdays.

CONTEXTUAL

Since I finished my final exam yesterday, I plan to sleep in tomorrow morning.

COMPLEX

After a grueling week of travel and late-night meetings, she decided to sleep in, ignoring the insistent chime of her alarm clock.

Anchors to
Related idioms8entries
  1. 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.

  2. 02

    big sleep

    Death.

  3. 03

    cry oneself to sleep

    To cry until or to fall asleep.

  4. 04

    eat, breathe, and sleep

    To devote one's time obsessively to.

  5. 05

    eternal sleep

    Death

  6. 06

    fox sleep

    Feigned sleep while actually alert.

  7. 07

    go to sleep

    To be affected by paresthesia; to go numb.

  8. 08

    one could do it in one's sleep

    Said of something that can be done very easily or effortlessly.

Last updated April 17, 2026