Finally I have been able to get the ultralight Plastazote foam pads in full lengths +plus. You could be 6 ft 8 inches tall and not hang over the pad ends! The pads are a whopping 3/5″ thick (15mm) and will fit two people at 40x 80 inches long ($70)! I cut these down into two smaller sizes as well, for a torso size 20×40″ ($25) and a one tall person size at 20×80 ($38)”. The R value should be a conservative 2.4. They can be trimmed to fit your hammock, bivy or tent with a knife or scissors.
If you have ever had the experience of a multiday trip with a flat inflatable pad due to an internal cactus spine that punctured every patch you apply, these closed cell foam pads are for you.
I have a brand new shopping cart web site I am developing and the first products featured will be these foam pads. Backpackinglight readers can use the coupon code bpl foam to get 10 percent off the order for the next week. Shipping is free in the USA.
http://bivysack.com/ for more info or to order.