sleep on

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sleep on (third-person singular simple present sleeps on, present participle sleeping on, simple past and past participle slept on)

1. (idiomatic) To postpone (a decision) at least overnight, to avoid making a hasty choice.

   I like the idea, but let me sleep on it before we go ahead.

   There's no chance to sleep on the matter. You have to decide now.

2. (idiomatic, slang) To miss or ignore; to underappreciate; to underestimate the quality of something.

   People are really sleeping on that restaurant down the street.

   I can't believe I slept on that movie for so long.

3. Used other than figuratively or idiomatically: see sleep,‎ on.

• in the cold light of day

• on sleep