Hit the sack

Meaning

Go to bed.

Usage

Informal way to announce bedtime.

Origin & History

Origins and dates here are approximate summaries. Many idioms have disputed or unknown origins, and not every date has been checked against a historical dictionary, so treat specific dates and stories as a starting point rather than a citation.

Sacking straw mattresses implied it was time to sleep.

American slang from the early 1900s.