Oct 21, 2013 at 7:27 am #1308958
Michael MoomawBPL Member
I am planning my winter camping try to Dolly Sods in WV. I have several UL down sleeping bags rated in the 30-35 deg F range. I have slept into the 20's with one of these bags and down to 12 near a burning fire (in a place where that was appropriate).
What do you all think about using two 30 deg F sleeping bags, one inside the other, to create a makeshift winter bag? I think I can fit in the two bags without too much compression (of insulation or person).
-MikeOct 21, 2013 at 7:38 am #2035962
Jerry AdamsBPL Member
@retiredjerryLocale: Oregon and Washington
There are other threads about this
If the outer bag is big enough so it doesn't squish the inner bag it would probably work. Try it at home to see if it's comfortable. Try it when it's not super cold to see how ell it works…Oct 21, 2013 at 11:40 am #2036044
Michael MoomawBPL Member
Thanks Jerry. Now that you mentioned it, I have found some rich threads on the topic with all the information I need.
-MikeOct 21, 2013 at 2:06 pm #2036088
@rcaffinLocale: Wollemi & Kosciusko NPs, Europe
> What do you all think about using two 30 deg F sleeping bags, one inside the other,
> to create a makeshift winter bag?
Double bags are quite standard, but I suggest you use the outer one as a quilt, not a bag. That way the inner bag will not be compressed, and you will be warmer. Oh – do use the footbox though: it controls the rest of the outer bag.
CheersOct 21, 2013 at 2:26 pm #2036095
Tad EnglundBPL Member
@bestbuilderLocale: Pacific NorthwestOct 21, 2013 at 11:37 pm #2036298
eric chanBPL Member
The outer bag will likely see some condensation … As long a you know how to deal with it …
;)Oct 22, 2013 at 2:31 pm #2036538
Eric BlumensaadtBPL Member
@danepackerLocale: Mojave Desert
I've used my WM Megalite 30 F. bag in 15 F. weather inb Colorados' Indian Peaks range with insulated jacket and pants and found I was very comfortable. I also had thick "sleep socks" and a very warm balaclava which helped a lot.
My insulated jacket and pants were strictly "mid" layers with very light nylon shells and DuPont "Thermolite Micro" insulation, which I have found to retain its loft much better than earlier versions of Primaloft.
With this combo I also used the jacket for warmth around camp so it served two purposes, a goal of UL backpacking.
I've camped in the Dolly Sods years ago for a Ski Patrol Nordic Mountaineering course and experienced -5 F. temps overnight. It can get cold there as it is the furthest south true alpine area in the east.
P.S. See the 1st thread recommended by Tad. In it I explain why I prefer a synthetic outer bag or at least an outer down bag with DWR treated down. Double bags are heavy but they REALLY work well and that's why the military uses them.Oct 22, 2013 at 10:10 pm #2036783
Nick GatelBPL Member
@ngatelLocale: Southern California
Sometimes I use a cuben quilt inside a Nunatak quilt, which works good. The cuben acts as a vapor barrier, which means I cannot wear down clothing in it.
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