If you don't want to sleep with wet hair then get a spray bottle, fill it with water and spray your hair lightly.
Then divide your hair into sections, put a conditioner on a section then comb it.
When you are combing gently work from the ends to the roots.
There are quite a few curlies who sleep with damp hair but others use a drier.
To be honest if you work out how little water you can get away with and don't do it last thing your hair may actually have enough time to dry before you go to sleep.