hit the hay
Speech parts
1. hit the hay - Verb
2. hit the hay - Phrase
Meaning
prepare for sleep
Source: WordNetSynonyms
hit the sack
go to bed
go to sleep
kip down
turn into a pumpkin
bed
retire
lie down
drop off
turn in
go off
fall asleep
bed down
doze off
drift off
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Antonyms
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Examples
I usually turn in at midnight
He goes to bed at the crack of dawn