IdiomBody & SensesEnglish

not sleep a wink

Meaning: To not sleep at all.

Example: “The neighbors' party went on until four, and I didn't sleep a wink.”

Origin: A "wink" was a brief closing of the eyes, and so the smallest possible amount of sleep. Shakespeare has "I have not slept one wink" in Cymbeline (1611), and the phrase may be older.

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