Synonyms of hit the sack
hit the sack (slang)
▷ See sack
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go to bed
retireturn in (informal)go to sleephit the sack (slang)go to your roomkip down (British, slang)hit the hay (slang)
retireWhen you retire, you go to bed.
• She retires early most nights.
Thesaurus for hit the sack from the Collins English Thesaurus