RE: [SPAM] [Hammock Camping] Hammock Cocoon & backyard testing.
- Great idea & report Paul. Let us know how it continues to work. I'm
working on something similar for Speer Hammocks-should have it out soon..Ed
Moderator, Hammock Camping List
Author, Hammock Camping, The Complete Guide
Editor, Hammock Camping News
Owner, Speer Hammocks Inc
From: email@example.com [mailto:firstname.lastname@example.org]
On Behalf Of Paul Kaercher
Sent: Thursday, March 08, 2007 10:36 PM
Subject: [SPAM] [Hammock Camping] Hammock Cocoon & backyard testing.
Last year I tested a 4" thick home made quilt, 3 3/8" foam pads,
cuban tarp, and a silk hammock in the backyard .
At 17 degrees and no wind I was cool but OK.
I realized that any appreciable wind would make staying
comfortable wishful thinking. I considered making a travel pod
but I use a ridge line and wanted enough room inside to read.
So this year I slapped together a hammock cocoon out of dacron
sail cloth (water repellent & breathable)to test the concept.
(in case the photo does not show the caption here it is:
The cocoon is backlit so you can see the hammock inside,
the quilt is piled on the right half of the hammock.
The black fabric is the door cover, which is not attached to the failed
velcro attachment points and is hiding the vertical door slit.)
I was wearing a cotton undershirt, cotton long sleeved
shirt (I know cotton kills, but not in my back yard) a
mid-weight fleece top, Cotton sweat-pants, lined ski pants,
a balaclava and a knit cap, plus cotton gloves.
I also used a Stephenson's DAM instead of foam pads.
I was hot in 5 min. so I took off the ski pants and used
them as a pillow. The gloves came off, and the knit cap came off.
Then I un-tucked the quilt to let some cool air circulate.
The cocoon really makes a difference. As long as I breath
through the balaclava moisture buildup on the inside is
not too bad. However the balaclava was too tight (they
seem to only be sold as a one size fits all)
and was giving me a head ache, so off it came. The air
inside the cocoon was warm enough to be comfortable
without anything over my mouth & nose, but the part
of the cocoon closest to my face got wet. So in
the future I will have to breath through something loose
knit to reduce moisture build-up.
The door to the cocoon closes with 1" hook & loop
with self stick backing. Well the velcro stuck
fine to itself but the self stick backing doesn't stick when it's cold,
so I will have to sew them on.
At 2pm I was still toasty but had to pee. When I went inside
I checked the outside temp, only 21, not cold enough so I just stayed
My wife woke up, looked at the clock, and mumbled
"wuss" and went back to sleep.
3" of new snow. wind 10-12mph.
Clothing: cotton: socks, undershirt, long sleeved shirt,
sweat-pants. Plus a fleece jacket and polyester cap.
I slept until 4:30AM at which point I had to pee. (Denise
woke up, again, looked at the clock and said "Hmmm
I see you lasted a little longer tonight." I think she is under
the misconception that night testing should last all night.)
By then it was 13 degrees and almost no wind.
I was warm (not toasty) with a couple of cool spots
which (as I tested out) could be alleviated with the
closed cell foam sit pad I carry on trips (about 8"X12")
For cold weather camping I would carry 2 of them.
I had some ice and liquid water on the inside of the
cocoon around my head, but no moisture anywhere on the quilt
or on the cocoon from the waist down to my feet.
I used an old bulky loose knit beanie as a face cover.
It worked great, I breathed in warm moist air the whole
time. I find breathing cold air very annoying
when I'm trying to get to sleep. I'm getting crotchety
(soft) as I get older.
I had an indoor/outdoor thermometer on top of the
quilt and it varied between 40 & 45 degrees. The air in
the cocoon was cooler than that as you got away from the
surface of the quilt, but it was above freezing.
If I do this again I will bring a clip to hang the thermometer
from the ridge line to keep it off the quilt.
If you don't like sleeping with something over your face, using
the cocoon lets you breath air that is significantly warmer and
moister than the outside air.
If I had used my normal winter camping clothing, I would
probably be warm down to 8 degrees or so. Wind would
likely bump that up some, but when I fix the door flap,
the wind should not be too bad. It will be interesting to
test in more wind because I suspect as the cocoon flaps,
air will be pumped in and out of the snorkels (ends)
and the door. This will lower the inside air temp but will
also exhaust moisture.
I like the concept and will add 2 Cuben fabric windows so
I can see out both sides.
[Non-text portions of this message have been removed]