Peter,
not my experience at least with Thermarest mattresses, can't speak for
other brands, there's probably a lot of cheap knock offs around these
days, no idea how they perform in the cold.
You do need to look after them though, they are best stored
inflated/with valve open, I keep mine under the bed and you need to
allow them to fully inflate and maybe blow a little extra air in, before
sleeping on them, they are very slow to inflate when they are cold. A
closed cell foam mat is under $10 so quite cheap to try out and see if
helps.
Chris Ross
On 19/06/2011 10:54 PM, Peter Shute wrote:
I believe Greg was using a self inflating mattress, rather than an inflatable.
I've no idea what type, but it appears it wasn't good enough. So perhaps even
self inflating mattresses require the extra layer of foam when it's very cold.
Peter Shute
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