I have a quick question... or two, maybe even three.
I currently have a few foam mats for sleeping out and they do an admirable job of keeping the chill from the ground out and for making any pointy bits on the floor comfy.
They're not very forgiving on my back though.
I have been thinking about getting a thermarest for some time but i'm more than a little dubious about their ability to maintain shape and keep the heavier bits of me off the ground.
I have squeezed one or two in shops and they seem to give really easily, are they ok when you're laying on them?
I was looking at one of the larger ones in the range for comfort.