"Sweet dreams!" (5)

I think it could be either:

Which length description are you looking for?:

5,4

night

'sweet dreams' is the definition.
(I've seen this in another clue)

This is all the clue.

(Other definitions for night that I've seen before include "Time for bed" , "A Hard Day's (the Beatles)" , "- School, - owl" , "Opposite of day" , "8d [DARKNESS]" .)

I've seen this clue in The New York Times.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.