I found at a locale foam shop 1/4" closed cell foam. It comes 54" wide and I thought it would make a great liner/pad to sleep on. They use it for vinyl and landau tops. There are two foams, one is white and a little denser and finer and a black/grey foam that is more open like a WM blue pad but still pretty flexible. Has anyone used these or know of them? My question is which would be a better insulator? I was thinking of instead of an SPE just using a 36' x 54" section and putting my bag on it. It seems like it is pretty soft and wouldn't buckle and be nice to sleep on. Any thoughts? it's about 10.00 a yard so I'm willing to try it just not sure which one.

Thanks,