I decided to install small flat cups on the floor where the feet of the bed normally sit. The point of this installation is to provide an extra bit of resistance from moving when I'm driving the truck and pulling the cargo trailer behind me.
The bed I'm using is a futon which has two positions couch and bed. I like the couch position the best because it provides more room for the walkway, but when I'm having company, the bed position is a way better choice... lol
The flat cups are plastic PVC end caps for rain gutter systems. I got them at Lowe's for around $2 each.
Click HERE to see a slide show of the photos from this post.