X100 on what Ron said above re Class C rear corner beds.
In our situation we needed an always-ready bed so the DW could nap or give her bad back a quick rest anytime anywhere on short notice. Our bed had to be "corner" so we could have a short Class C for small campsites anywhere anytime and to also be able to go toadless.
We don't make up the corner bed at all. The mattress has the never-washed, never-removed, vacuumed-only, original Winnebago color matched mattress cover on it. On top of this mattress is a 2 inch foam topper. We use a fitted sheet on only this foam topper and remove/wash/replace the fitted sheet after every trip. We throw a fancy color matched down comforter over the whole thing to help keep it dust-free and "kindof looking organized" between uses. This all works like a champ and helps keep camping life simple.
