The Garlington Insulator lined with extra clothes or with plastic bags
stuffed with crinkled newspapers or space blankets or leaves makes
sense, because these items would prevent the convection problems of
non-insulated air mattresses. So, that, I understand. The idea of a
non-insulated air mattress working when suspended even though it doesn't
work when on the ground, doesn't make much sense. Now, if the
non-insulated air mattress is between the hammock and an external
insulating layer (like an under-quilt), then it ought to work great!
Each one of these methods has a snag from weight to damp leaves to
leaves being unavailable. So, if you're trying to combine hammocking
with light-weight backpacking, things can get a little
tricky--especially if you're like me and need an under-quilt whenever
temperatures drop below 28*C (84*F). When temperatures approach 10*C
(50*F), I really notice the presence and absence of the insulating
layer. Not enough insulation can make for really cold shoulders and
heels. I almost immediately bought the JRB 3-season set--but sort of
wish I'd spend the extra 40 or so dollars to get two No-Snivelers
instead of one plus nest.
I'd have to ask my dad about Ron Bridgman. I've not heard of one in the
family. Since his name is spelled the right way, he probably is (was?)
related. Once, on an international flight, my dad discovered that the
man sitting next to him was an 8th cousin. Not that many Bridgmans
about, really, but each one tends to cover a lot of ground traveling
through places and careers.
Blake Robert wrote:
> All I can figure is that an airmattress on the
> ground in in contact with something with a high
> specific heat capacity results in a lot of conducted
> heat away from the body while the same thing suspended
> is in contact with something (air) with a lower
> specific heat capacity results in less heat
> flow---but, I won't fully believe it until I try
> it---and I will carry a closed cell foam pad on the
> same trip-just in case.
> For more information: use a good search engine and
> the search terms: "The Garlington Insulator for the
> Hennessey Hammock". Sometimes they suggest putting
> crinkled newspaper, spare clothing, etc. as additional
> There was once a Ron Bridgman who was the editor for
> the National Speleological Society publication back in
> the 1960's. Any relation????