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Layering sleeping bags??
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Apr 2, 2013
Think I've got my 4th kid on th way. We'll fine out soon. I'm in the same boat. For me weight savings must come in the form of putting down the fork
Joined Dec 19, 2012
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Apr 3, 2013
congrats! im sure you know the days of patiently waiting for morning all suggled up in your sleeping bag are few and farther between with the more kids you have. ldsclimber
From Santan Valley, AZ
Joined Aug 13, 2006
3,355 points
Apr 3, 2013
Big Agnes has a system where the bottom of the sleeping bag has less insulation than the top half and is made to be used with their sleep pads that fit into the built in sleeve. Have you ever tried the hot water heater insulation? Its like a foiled bubble wrap made to wrap the hot water heaters to keep them efficient. Pretty lightweight and can be cut to be slightly larger than your sleeping pad. Makes a huge difference on snow while inside the tent.

Hot Water Heater Wrap
From NY, NY
Joined May 8, 2010
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Apr 3, 2013
My experience with doubled up bags is that a 32 and a 20 degree bag gives roughly a 10 degree bag. 2 zero degree bags and you end up with roughly a -20 bag. The 2 bags are heavier and bulkier than a single bag of similar warmth and it can be awkward getting in and out but it can work in a pinch. Probably not a ton warmer than a liner though. wisam
Joined Jan 18, 2012
0 points
Apr 5, 2013
As I'm a cheap bastard, I can say I specialised in this game.
I have:
- one childhood relic sleeping bag, lafuma, originally rated at 6°C but its been in the washing machine a few times so its definately less warm, and its heavy and doesn't compress.
- a cheapo 15°C bag, ultralight and can almost compress into your wallet.
- another cheapo 15°C bag but its broken, theres a hole near the feet so the insulation has gone missing there. Keepon a pair of socks lol!
- a fleece sleeping bag/liner bag. This is heavy, bulky, but its the warmest I have. Its a recent addition but it has already saved my ass from freezing off this year.
- a thermolite reactor extreme liner, the most expensive piece of sleeping kit I own, its pretty good for what it is but no freakin way it adds 10°C !!
- a 'waterproof sleeping bag cover', its not a real bivy bag cause you can't close it. Keeps you dray and keeps you wet, works both ways.
- two ccf pads, still not sure wich one is better...

I've camped in freezing conditions with both the cheapo's and the reactor liner, and one of the ccf's and I'm still here to type it, but it wasn't a good nights rest. I've been in freezing conditions with the childhood relic and the fleece liner and it was toasty to say the least. :)
So all those people with the 400$ down bags telling you it doesn't work are pretty wrong. I have less than 120€ invested right now and I can do almost everything with my gear. However, it can get bulky if I need it all. Most of the time, on sport climbing trips or bouldering trips it just stays in the car trunk so no biggie, I do go on hiking trips with it all, but I'm no alpinist so if you're looking into doing peaks, you might want a single bag thats warm enough and compresses well.
Joined Dec 22, 2012
0 points
Apr 8, 2013
+1 for the Big Agnes "overbag" system. Their bags have no insulation on the bottom of them, and have a "slot" or pocket that keeps the sleeping pad in place. They give temp ratings on their site for using different bags as overbags.

Personally prefer this system as it allows you to stuff clothes, jackets, water bottles, etc in between the bags. It also will help with moisture regulation, as the outer bag will take most of the condensation that builds up in the tent while keeping the inner bag dry.
Sean Brady
From Boulder, Colorado
Joined Aug 3, 2012
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