Shut-eye and Turn in

Shut-eye noun - A natural periodic loss of consciousness during which the body restores itself.

Turn in and shut-eye are semantically related in activity topic. In some cases you can use "Turn in" instead the phrase "Shut-eye" as a noun or a verb.

Turn in verb - To give (something) over to the control or possession of another usually under duress.

Shut-eye and turn in are semantically related in activity topic. Sometimes you can use "Shut-eye" instead the word "Turn in" as a noun or a verb, if it concerns topics such as slumber.