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From: Sisler, Clyde <Clyde.Sisler_at_wang.com>
subject: [Paddlewise] Sleeping bag liners
Date: Fri, 16 Oct 1998 10:04:04 -0400
Anyone use these things?  I sweat a lot in hot, humid weather and it seems a
cotton liner would help keep me more comfortable and my bag a lot cleaner.
In wintertime it would help keep body moisture from the bag, keep heat in
and probably lower the bag's rating by a few degrees.
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From: Barbara Kossy <bkossy_at_igc.apc.org>
subject: Re: [Paddlewise] Sleeping bag liners
Date: Fri, 16 Oct 1998 08:21:31 -0700 (PDT)
I have a silk liner a friend bought for me in Viet Nam. It packs small and
feels great in any temperature. When it's hot, I can even through off the
sleeping bag. I used to have a cotton flannel liner made by North Face. I
wish I still had that one. It warmed a down bag that had a flock of thin spots.
Barbara 
Richmond, Calif.

At 10:04 AM 10/16/98 -0400, Sisler, Clyde wrote:
>Anyone use these things?  I sweat a lot in hot, humid weather and it seems a
>cotton liner would help keep me more comfortable and my bag a lot cleaner.
>In wintertime it would help keep body moisture from the bag, keep heat in
>and probably lower the bag's rating by a few degrees.
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>
* -- * -- * -- * -- * -- * -- * -- * --*--*--
        Barbara Kossy Communications
  voice: 510-234-3479 fax: 510-234-6615
* -- * -- * -- * -- * -- * -- * -- * -- *--* --

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From: <BijiliE_at_aol.com>
subject: Re: [Paddlewise] Sleeping bag liners
Date: Fri, 16 Oct 1998 11:37:18 EDT
I found a fleece sleeping bag at Target, very inexpensive, that works as a
great bag liner.

Bijili Abbey, Orangevale  CA

P.S. Did you ever live in Placerville, CA?
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From: Richard Culpeper <culpeper_at_loon.norlink.net>
subject: Re: [Paddlewise] Sleeping bag liners
Date: Fri, 16 Oct 1998 21:19:17 -0400
Although bag liners are terrific in the winter, I would suggest avoiding cotton
ones.  You tend to blow off a lot of moisture even if you're just happily lying
still all night long.  Moisture reduces the insulative value of the bag.  The
trick is to get the moisture to flow through the bag and out into the
atmosphere, rather than have it in your bag.  Thus anything absorbant, be it the
inner liner, the bag, or the outer liner, is not a great idea for the winter.

Also, drying out a bag while on a trip in the winter can be problematic.  Even a
high end bag will retain some moisture after you have been in it for a few
hours.  This is no big deal in the summer, for the bag will air out almost
immediately.  In the winter it just ices up.  After a few days the moisture
build up in the bag in the winter will start to be noticable, and if unattended
can seriously affect the insulative efficiency of the bag.  Thoroughly airing
out the bag in the winter every day or two is important.

The obvious question is how about using a cotton blanket as a liner to absorb
the moisture rather than letting it get into the bag.  I tried this for a week,
and will never do it again.  It did not help keep moisture out of the bag, and
to make things worse, it left me with an iced up cotton blanket.

The bottom line for crashing in the snow is to maximize the ability of you bag
and liners to evaporate off moisture as you sleep.  Use thin nylon or silk inner
liners, or thick polypropelene/fleece inner liners if your bag needs a bit of
help keeping you warm, but avoid cotton liners if you are going to be in the
deep freeze for more than a couple of nights.  Whatever you use, let it air out
in the day for as long as possible.

Richard Culpeper
Happy and warm at -40
www.geocities.com/~culpeper

Sisler, Clyde wrote:

> Anyone use these things?  I sweat a lot in hot, humid weather and it seems a
> cotton liner would help keep me more comfortable and my bag a lot cleaner.
> In wintertime it would help keep body moisture from the bag, keep heat in
> and probably lower the bag's rating by a few degrees.
> ***************************************************************************
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> ***************************************************************************

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From: sylvio lamarche <wgarden_at_cyberlink.bc.ca>
subject: Re: [Paddlewise] Sleeping bag liners
Date: Fri, 16 Oct 1998 22:50:14 -0700
barbara said.......
>I have a silk liner a friend bought for me in Viet Nam. It packs small and
>feels great in any temperature. When it's hot, I can even through off the
>sleeping bag. I used to have a cotton flannel liner made by North Face. I
>wish I still had that one. It warmed a down bag that had a flock of thin spots.


Use mine all year long, arn't they the best...

Yours naturally

sylvio  lamarche
Wycliffe organic gardens
& Exotic locales all over the globe



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From: wildwater <wildoats_at_ionet.net>
subject: Re: [Paddlewise] Sleeping bag liners
Date: Sun, 18 Oct 1998 09:51:37 -0500
Sisler, Clyde wrote:

> Anyone use these things?  I sweat a lot in hot, humid weather and it seems a
> cotton liner would help keep me more comfortable and my bag a lot cleaner.
> In wintertime it would help keep body moisture from the bag, keep heat in
> and probably lower the bag's rating by a few degrees.

Yes!  This summer was hot hot hot here and the liner on top of the bag was about
*all* I could tolerate.  Plus they are cheap enough to replace seasonally.  I
also use a fleece liner for winter camping in cold country since I have a
tendency to be cold and sleeping bag ratings definitely do not reflect *my*
comfort range.  For really cold stuff, I use down, for yak camping or boating of
any kind, I use a Sierra Designs Calamity Jane and add liners and a dog as
necessary.

Alice

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From: <KayakerKen_at_aol.com>
subject: Re: [Paddlewise] Sleeping bag liners
Date: Tue, 20 Oct 1998 02:26:56 EDT
Clyde wrote;   "Anyone use these things?"

  I've made several sleeping bag liners out of cotton sheets sewed together.
Numerous times in hard conditions, I've been forced to climb into my bag after
sweating all day, without washing. I hate sticking to the nylon bag. So I made
a cotton liner that works great. It also helps if you sweat at night. The bag
feels warmer too. And it's washable. 

Ken Mannshardt
SF Bay Area
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From: <outdoors_at_biddeford.com>
subject: Re: [Paddlewise] Sleeping bag liners
Date: Fri, 23 Oct 1998 17:19:01 -0400
At 10:04 AM 10/16/98 -0400, Clyde Sisler wrote:
>Anyone use these things?  I sweat a lot in hot, humid weather and it seems a
>cotton liner would help keep me more comfortable and my bag a lot cleaner.
>In wintertime it would help keep body moisture from the bag, keep heat in
>and probably lower the bag's rating by a few degrees.

I use a cotton bag liner.  It makes a nylon bag feel so much better when you
sleep naked.  Also, it gives you more options.  If it's a hot night but too
cool for nothing, just use the liner.  A little cooler? spead the sleeping
bag out over the liner.  It's not cool, it's cold?  slip the liner inside
the bag and sleep inside them both.  I even take it on most backpacking
trips.  It's worth the extra ounces.
			Bill Ridlon
			Southern Maine Sea Kayaking Network

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From: <xy9_at_iname.com>
subject: Re: [Paddlewise] Sleeping bag liners
Date: Fri, 23 Oct 1998 20:57:51 -0400 (EDT)
 ---- you wrote: 
> At 10:04 AM 10/16/98 -0400, Clyde Sisler wrote:
> >Anyone use these things?  I sweat a lot in hot, humid weather and it seems a
> >cotton liner would help keep me more comfortable and my bag a lot cleaner.

Yes, I use a cotton liner inside my bag. Sometimes I uses a Capriline liner. Sometimes I use both. These liners are called "sweats" and "long-underwear." In really cold weather I wear a stocking hat and socks. But I always wear some sort of "body suit" inside the bag because it keeps the bag cleaner and prevents those annoying drafts that sneak in under the covers. In the Arctic (US Army) we used two sleeping bags. There are several "second" bags on the market for extreme cold. A moderately priced tapered "rectangular" bag works well as an outer bag when coupled with a good quality "mummy."

But most of your heat loss is through conduction into the ground. A good sleeping pad is essential in cold weather. If you're using a short pad, you're losing heat through your legs. A pad of spare clothes under the legs can help. I use a dense foam pad under the legs to extend my Therma-Rest "short" pad. 


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