Well my canvas bedroll is just about sewn up. And I need a mattress. I was thinking about 3" foam but it is really expensive. Is there a natural alternative? Or does anyone know where I could source some foam on the cheap?
I got a Polish Army mat - looks identical to the Russian one Mesquite posted above - from military Mart - cost 12quid. Thick, heavy, waterproof base. Nearly as good as an airbed for comfort, but won't puncture!