I'm trying to think what you could use that wouldn't cost a small fortune, or scare Brody. How about a triangular pillow, normally used for eating/reading/watching TV in bed? Stores like Wal-Mart/Target usually have them. Or a wide, sturdy plant stand made out of wood? Without the plants, of course, and placed at the foot or side of the bed. One of my students has taken in his grandmother's geriatric cat, and has built a "bridge" to his bed with used car tires. When I saw the photos of his solution, I went into hysterics, but it's really clever.