Bill- Non compressing down may be the premise that makes the down air mattresses work. The sealed envelope of air keeps the down from flattening. R ...Message 1 of 2 , Sep 1, 2003View SourceBill-
Non compressing down may be the premise that makes the "down air mattresses" work. The sealed envelope of air keeps the down from flattening.
From: Bill Fornshell <bfornshell@...>
Subject: Re: Insulation suit - Perhaps another snake oil remedy- cont
Hi dunangus73, This is the kind of thinking that
will lead to a solution. What I would say is "Hybrid"
thought. Make you Jumpsuit with a mix of Down and
Packing Peanuts, the Down to keep you warm and the
Packing Peanuts to keep the Down from compressing. Do
I think the Packing Peanuts would work, that is not
the point. I do think if there was something you could
mix in with the Down so it would not compress flat
your idea might work. The Packing Peanuts like stuff
could be your first test to see if the idea would
work. Then maybe you could find something better to
use that would provide the bulk necessary to let the
Down work. I will try it if you don't want to. Bill
>Perhaps this is a bizarre idea, but has anyone
>considered sewing a
>pad into their sleeping clothes? Fleece may be a
>good fabric that you
>could create a fleece jumpsuit against your skin (I
>remember "cuddle-nap" pajamas when I was a kid in
>the early 70s with
>built in feet that may be a good design) with
>padding insulation over the fleece that covers the
>lower 3/4 of your
>body (back and sides), and over that would be a
>breathable (maybe not
>necessary)fabric on the outside to block the wind.
>You wouldn't have
>to worry about rolling off the pad. It wouldn't be
>all that different
>from a wetsuit as I understand it, but it would be a
>3/4 version. It
>would also block the wind…I'm not an engineer so
>please tell me if
>this idea is not sound. Of course, I have no idea
>how to make this
>light weight and packable. Any suggestions?
The whole purpose of having the down in it is to stop the air from moving around. If the down didn t expand to fill the space and stop the air fromMessage 2 of 2 , Sep 2, 2003View SourceThe whole purpose of having the down in it is to stop the air from moving
around. If the down didn't expand to fill the space and stop the air from
circulating, it wouldn't be any better than an ordinary air mattress.
It is possible to overinflate a D.A.M., though, and if you did that you
could open up enough space for the air to move around above the down.
>Yes, the D.A.M.!I was thinking about that this weekend. Do they work- Matthew Takeda
>well? What I understand from reading about the Stephenson D.A.M. is
>that you may still need a pad underneath it. Too much air circulating
- the JOAT