Probably not the answer you're looking for Cara, but the Speer Snugfit Underquilt has effectively solved most (if not all) of those problems.
If you ever get a chance to check one out, I think you would love it.
don`t leave the CREATOR out of the creation!!!
--- On Sun, 9/7/08, Cara Lin Bridgman <cara.lin@...> wrote:
From: Cara Lin Bridgman <cara.lin@...>
Subject: [Hammock Camping] JRB nests & Hennessey Hammock at 3500 m and 0-10*C
Date: Sunday, September 7, 2008, 10:00 PM
Just finished a 5-day trip in which 4 of the nights were at >3400 m
(11,000 ft)in elevation. Nighttime lows were 0-10*C (32-50*F). Being
cold in the hammock was not necessarily correlated with temperature.
There was a huge correlation with getting the right fit between JRB nest
and the HH. In fact, I had to tinker with the adjustments (quilt
drawstrings and bungees) several times each night--no such thing as
getting the thing adjusted once and having it work for the whole trip.
I found cold drafts leaking past the JBR Nest drawstrings and down
between the nest and the HH. Bungees seemed to stretch. I'm trying to
figure out if that stretch was a function of elevation (high),
temperature (low), humidity (high with lots of rain), or all 3. There
wasn't much wind. My elastic hairties, which usually last several
weeks, had to be replaced each day. So, there was something about the
conditions of this trip which were hard on elastic.
If the JRB nest was adjusted right, it was toasty, even to about
0*C--and I sleep cold. In fact, I was astounded at how well the JRB
No-Sniveler pumped the heat back to me!
By the way, the Nest was velcroed to itself, so I was swinging it out of
the way to get into and out of the hammock. Before the trip, I did the
DIY Under Quilt Foot End Draw Cord Modification here:
<http://jacksrbetter.com/index_files/DIY.htm>. It did help.
The snag was getting the JRB Nest adjusted properly. I use it or the
No-Sniveler as an underquilt in my top-loading hammock at home--never
have any problems.
Part of the problem on this trip, was that the Nest didn't seem to be
spreading out properly to cover the wider parts of the hammock, meaning
for a cold shoulder and cold toes.
Luckily, we had my 3/4-length thermarest with me. It worked fine in the
hammock for keeping my lower back warm. The point is, I'm sure that if
I could get the nest adjusted properly, I wouldn't have needed the
thermarest at all. I conclude this, because I had 3 nights with lows
between 7 and 10*C, two of those nights inside cement shelters (i.e. no
wind at all), and two nights were toasty and one night (the second
shelter night) was cold and required extra layers beneath my back.
So, I'm interested to learn whether others have had problems with
bungees acting up and needing adjusting each night. Instructions at JRB
suggest that once adjusted, everything should be hunky dory from then on.
I'm also interested to hear how others manage to reduce drafts from the
ends of the hammock (Nest drawstrings) and yet maintain coverage width.
I found it frustrating that I couldn't get the adjustment right--the
Nest was almost always too loose (cold & drafty) or too tight (no
insulation and no spread across the hammock). It was even more
frustrating, because I've not experienced any of these problems with my
hammock at home. Admittedly, temperatures inside my home this summer
are almost >25*C, but we have fans and I sleep directly under the breeze
from the air conditioner.
In Taiwan, we are still debating whether there really is a tree line.
In other words, are the lack of trees on peaks >3800 m the result of
climate or just an artifact of the fact the peaks are continually
shedding rock (earthquakes, etc). The 3886 m (>13,500 ft) peak we twice
climbed this trip, Shueshan (Snow Mountain), had Juniper trees crawling
all over it. None, though, were tall enough from which to suspend a
hammock and stay off the ground. We didn't camp there--too much thunder.
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