I too wash my hair at night and sleep with it wet (well, I usually try and let it dry for at least 2/3 hours before going to bed). I just co-wash, condition, apply Boots curling creme and some gel (usually a bit extra to try and avoid the frizzies!!) So it's like this when I go off to bed:
I sleep on a satin pillowcase and with the pillow pulled away from the head board so I can sweep my hair away from my face and behind the pillow. Basically, so I'm not lying on it!
In the morning I just touch up individual bits with a tiny bit of Boots and water. Here are some morning shots:
Hope this helps a bit!