Some ideas in this
forum threadIf you aren't boondocking, there's lots of 120 volt motion sensor night lights that plug into a recept. We have one in the bathroom in our TT that has a neon lamp.
I find the blue light from our radio in the living area and from the microwave to be enough to navigate around at night. I had a blue LED voltmeter in a previous TT that gave off enough light at night.
The easiest solution is to have a small LED flashlight at the bedside. DW uses one at night at home and when camping because of vertigo and a loss of sense of balance. Works fine for her. Wakes me up sometimes tho.