B and C
Well-known member
Alternating slats would allow ventilation and be only about 3/4" thick. Pull it out with a couple of drop legs to support it. The mattress would be the tough part. It would need to be folded but should stay and if not a bungee cord or ratchet strap to hold it.
Ideas: https://www.google.com/search?q=sla...ECAAQCg&biw=1486&bih=706#imgrc=_SBi4l0Oq75ocM:
Ideas: https://www.google.com/search?q=sla...ECAAQCg&biw=1486&bih=706#imgrc=_SBi4l0Oq75ocM: