being an architect I am not too big of a fan of bubble insulation. yes it
works, but I would be very surprised if it comes anywhere close to closed
cell polyethylene foam. try leaving your closed cell camping pad at home and
sleep outdoors on bubble wrap------- brrrrrrrrrrrrbrrrr.
but this thinking led me to the solution of the problem for me. camping pads
are closed cell polyethylene, and you can get them on amazon in 72"x20"x.4"
for $6.50, free shipping. choice of blue or black. this stuff is identical
to european rv insulation like reimo sells.

so what i am doing now is a base layer of fatmat and then two layers of
camping pad on top. need to find an adhesive though. the only other thing i
want to check out is that foilastic stuff. seems to me the same as fatmat
basically. anyone found a source?

flo