On Thu, 2011-05-19 at 20:03 -0700, Ellen in Oregon wrote:

> I don't know when the last time was you slept on an air mattress, but
> they are cold and it is near impossible to warm up sleeping on one.
> The memory foam, on the other hand, is quite cozy once you've warmed
> it with your body heat.

An air mattress with a thin backpacking type closed-cell sleeping pad on
top is both warm and mooshy. The two take up less space when deflated
than any thick topper of open-cell foam, memory or otherwise, which I
find to be sweaty on warm nights anyway.
--
Rocky J Squirrel