Have one nightcap too many? (5,5)
I believe the answer is:
sleep tight
I'm afraid I can't even guess how this answer relates to the clue.
Can you help me to learn more?
(Other definitions for sleep tight that I've seen before include "I wish you a restful night" , "Get a good night's rest" .)
I've seen this clue in The Guardian and The Globe and Mail.
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.