Sleep on it
Meaning
To postpone making a decision until the next day or after a period of rest, allowing for clearer thought.
Origin
The wisdom of consulting one's pillow is a notion as old as civilization itself. Ancient cultures, from the Greeks to the Romans, believed that sleep was not merely a physical necessity but a conduit for deeper insight and divine guidance. It was thought that by allowing the conscious mind to rest, the subconscious could work undisturbed, often presenting solutions or clarity upon waking. Though the exact phrasing 'sleep on it' became firmly embedded in the English lexicon by the 19th century, its roots lie in this timeless human experience of finding resolution and perspective after a night of restorative slumber, transforming anxiety into clarity.
Examples
- That's a big investment, so let's sleep on it and discuss it again with fresh minds in the morning.
- I'm not sure which proposal to accept; I think I'll sleep on it before giving my final answer.