A handy night light is those plastic light sticks that you shake and break. Hang it from the ceiling fan and it provides just the right amount of light for those P calls.
I bought a couple these from Amazon, nice for reading and I really like that you can clip it to most anything and point the light where ever so it can be a night light as well. Has 2 intensities.
I actually have a child in my camper who really likes a night light.
I just leave one of the lights on all night-- my wife cut a piece of black paper that fits in the fixure with stars and moon shapes cut in it. Works pretty well and the led lights draw almost no power and make no real heat so I'm not worried about setting the camper on fire by putting a piece of paper in the fixture.
That's what we use too. We have one of these stuck to each end of the front "lift board".
I actually never attached them to anything, I just keep one in my utensil drawer and then at night set it on the counter or cabinet behind the couch. Shining up it gives plenty of ambient light for things and I can pick it up and use it directionally if I want to light up something specifically.
Walmart has them in the RV section... 3 for about $20. I got some at Big Lots... 3 for $8. I bet Harbor Freight would have them for cheap too. I have them stuck all over... inside cabinets and in all the dark nooks and crannies.