Definitions for go to sleep
go to bed, turn in, bed, crawl in, kip down, hit the hay, hit the sack, sack out, go to sleep, retire(verb)
prepare for sleep
"I usually turn in at midnight"; "He goes to bed at the crack of dawn"
go to sleep(Verb)
To fall asleep
go to sleep(Interjection)
An expression used to dismiss an extremely foolish statement, or to dismiss somebody that one does not feel like talking to.