let me sleep on it
Basically wanting to say "fuck yeah I want it" but not having the balls to do so
"Be my burd"
"Let me sleep on it"
"Let me sleep on it"
Let me sleep on the couch
When you want to do something that someone else will not let you do because it seems less fun than the alternative.
You come back home drunk and your friend is trying to force you into your bed, but you say, "Let me sleep on the couch", and they will not let up until you are sleeping in your bed.