Meaning & use

sleep on

phrase·Everydayinformal

Last updated

UK/ˈsliːp ɒn/
US/ˈsliːp ɑːn/

Meanings

  1. phrasephrasal verbinformal

    To wait until the next day before making up your mind about something, so you can think about it overnight.

    Grammar: Takes an object that stays after on: sleep on it, sleep on the offer.

    Patterns

    • sleep on it
    • sleep on something

    I need to sleep on the job offer before I answer.

    Let me sleep on it and I will call you tomorrow.

    She decided to sleep on the idea instead of rushing.

  2. phraseintransitive

    To continue sleeping on a particular surface or in a certain position, as in sleeping on your back.

    Grammar: Often written with an object after on, but here it is the literal verb sleep plus the preposition on.

    Patterns

    • sleep on something

    He prefers to sleep on a firm mattress.

    The dog likes to sleep on the sofa when we are out.

    Babies should sleep on their backs.

Word forms

third person singularsleeps on
past tenseslept on
past participleslept on
-ing formsleeping on

Common combinations

sleep on it
I will sleep on it and let you know in the morning.
sleep on a decision
She chose to sleep on the decision before signing.
sleep on an offer
It is wise to sleep on an offer like that.
let me sleep on it
Let me sleep on it, and I will give you my answer tomorrow.
sleep on the idea
The team agreed to sleep on the idea and meet again on Monday.

Synonyms and how they differ

mull over
Means to think about something carefully for a while, with no suggestion that you wait until the next day.
think over
Is similar in meaning but plain, without the cozy idea of waiting overnight.
postpone
Means to delay an event or decision, and is more formal than sleep on.

Opposites

decide on the spot

Word family

sleep verb
to rest with your eyes closed and mind switched off
sleeper noun
a person or thing that sleeps
sleepover noun
a night spent at someone else's home

Commonly confused: sleep on or sleep in?

sleep on vs sleep in

To sleep in means to stay in bed later than usual, which has nothing to do with making a decision.

Practice

The salesman wanted an answer now, but Maria said she would ___ it.

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