to wait until the next day (in order to think carefully) before making an important decision.
What’s “IT” in the picture above? “It” is any decision that you have to make
I received two jobs offers today. I asked them both to let me sleep on it so I can review the offers and decide which is best.
I wanted to sleep on it but my manager said I had to sign the contract by the end of the day.
I wish I had slept on the purchase because the next day I found a much nicer dress and I can’t return the one I bought.
Frequently Asked Questions (FAQs)
The idiom ‘Sleep on it’ means “to deal with a difficult situation without being harmed or damaged”
Example usage of idiom ‘Sleep on it’: Newspapers have weathered the storm of online information by providing news online themselves.