Originally Posted by
bmike
and then
Now I'm confused. I'm more comfortable on a sleeping pad...

Yeah, I was thinking of clamminess rather than the cold hard ground, I can deal with that, but I hate a damp bag. As you say the bivy will be for insurance so I want it to keep me dry and be an effective wind barrier. I think the REI minimalist bivy looks like a nice compromise between function, weight and cost
http://www.rei.com/product/794292