OWAY2it (-- Rob) wrote:
that night one of our hunters got hypothermia because he was sleeping
on an
inflatable mattress.

I think there's something missing from this picture. Though usually by
inflatable
one means the inflatable insulated pads even a plain uninsulated air
mattress
shouldn't "cause" hypothermia if the hunter had a proper bag. Air does
provide
some insulation.

Of course it's the cold weather that "causes" hypothermia, not the air
matterss, but I know from experience that a good functional old
fashioned air matterss is very cold on frozen ground. The sleeping bag
is compressed under you, and the air is precious little insulation. On
the other hand, therma-rest is as warm and comfy as it gets. The
camp-rest version at 2 inches thick is a delight even on gravel.

Chas
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