I have allergies and go through a lot of kleenex. I also like to read in bed. I also sleep on a top bunk, the bottom bunk has a terrible mattress. So I needed a shelf. It's a simple thing, a vertical piece of wood for mounting, and the horizontal part. Plus 2 triangle pieces for support.
Originally I wanted the triangle supports pieces below the shelf. But I turned it upside down and liked it better this way. Add a little paint and I'm done. I used drywall screws and wood glue to put it together.