Does wearing more clothes make your sleeping bag warmer for cold weather and winter camping?
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- Опубликовано: 4 сен 2024
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Can you increase the temperature range of your sleeping bag? Using clothes in your bag is an old ultralight backpacking trick to save weight - but does it really work? This winter camping and cold weather backpacking question for how to stay warm at night never gets old.
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Check out my sub 20 pound late season/early winter ultralight gear list:
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One of my recent "failed" trips in winter conditions with wet snow and below freezing temperatures - these are when you really learn what you and your gear can handle!
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Hade a thermo sleeping bag 3:11 . 1 did it in the summer and the winter. If you go to bed without clothes in the winter, it's truly better.
There may be a limit to this. I once wore my one-piece down mountaineering suit inside my -30C down sleeping bag. I swear it was colder than without the suit. And I have close to 100 winter nights in that bag to compare with. Perhaps the two layers of down were compressing each other? The suit wouldn't have had too much moiture in it either because we weren't actually on a climb.
The suit was a vintage, but freshly washed, Mountain Equipment (the UK brand) and the bag was an MEC Thor Windstopper -30 which i would describe as neither narrow nor roomy as far as mummy bags go. The suit's previous owner wore it to the North Col of Everest so perhaps there was some cold stuck in it :)
Love your content. Keep it up.
An additional strategy is to focus on additional insulation/warmth at the extremities. Keeping feet, hands and head warm helps the core regulate body temp more efficiently, thus for a longer period of time.
Another concept I’ve experimented with and had success is allowing some heat to pass into the space inside my quilt/bag. Particularly when I am wearing a lot of insulating layers trapping warmth next to skin. Then the air between my layers and the quilt is cooler and gives the feeling of being cold. Unzip a jacket a little to dump some heat and spread more uniformly within the bag.
I think you're on to something there. I've noticed that when my hands are cold in my bag it's very distracting and makes sleeping a challenge. The moment I put on my big mitts the problem is solved. If you have a lot of insulation on your body and legs, it's actually pretty cool in the sleeping bag.
That makes a lot of sense, I think you're on to something 👍👍
My belief is that the extra layers are holding the moisture that your body is releasing & not wicking it outward. Selecting a specific type of insulation is key. Tightly woven nylon is nice to prevent conductive heat loss, but at the same time it prevents moist air from passing through at greater release rates.
I like how you don't pull your punches.
I disagree about not being warm during sleep while winter camping. I've slept at 30 below F ambient temp and was toasty cozy for 10 hrs. Anyway, YES, regarding the clothing inside the bag. Exactly - any amount as long as it's even(ish) across your entire body. Cheers!
Hi Josh, thanks for the feedback. I agree, I’ve spent many nights out at -20C (whatever that is in F) and have been perfectly comfortable. Maybe I don’t explain it well or enough, but I think some of us have different tolerances. I might feel perfectly comfortable while someone else would feel freezing. Those people want to “feel warm” and I would say winter camping might not be them. Two other things: if you get a chill or cold hands/feet it’s not the gear that’s going to fix things - experience and a calm head will.
I also run pretty much the same gear regardless of the forecast, meaning that on some nights I’m a little cool since I’m typically set for -20C. If it hits -25 or -30C I’ll be ok but a little on the cold side.
It's not old live's tale. It's true I've been through it and you take off all your clothes and get in my suit and bag and I guarantee it'll be warm for the night
What are you talking about? You can sleep warm and comfortable in freezing weather, even negative temperatures if you have the right equipment.
I learned that fast, testing my new, Klymit sleeping pad.
Using your home thermostat anaplogy:
Sleeping in a lesser rated bag with layers on in like you not turning the heat on and just letting the insulation in the walls keep the cold air in. Meanwhile, the heat your body produces gets trapped in your layers and can warm the air in your bag. This results in you being sweaty and your bag does it’s job of insulating but instead of getting warmer, you’re getting colder.
TLDR: don’t add too many layers, base layers with a fleece and sweatpants in a good bag will get you anywhere
So you’re telling me that if ever you’re out and your bag is under gunned you’ll just let yourself freeze?
I was out in early January and the temps dropped unexpectedly to -25 or -30C. My bag works well to -17 or -20C wearing normal layers. So I slept in all my insulation (down jacket, primaloft pants, mittens) and I was fine. It would have been a miserable night otherwise.
A couple of hot rocks from the fire wrapped in a towel tucked inside your sleeping back. One at your feet, one at your chest. Warm? Done. OK, now you mention the warm water bottle. Much the same thing.
Nice video! Good information. Crow✌️
Thanks I appreciate the feedback!
I woke up at 3 am and my sleeping bag was ice cold and I was naked because I believed this myth about the sleeping bag being warmer when you have no clothes on, so I had to put my ice cold clothing on one piece at a time and get a fire going with some gasoline because frost was settling on everything. Then I waited for the sun to come up and i had a lot of time to think about this dumb idea of stripping down to stay warm.
I recommend practicing in your backyard and mastering extreme cold temperatures before going into the wilderness. It took me several failed attempts and having to give up before I finally figured out how to do it. The most important one is the hot water bottle. You can't beat having a boiling hot water bottle to keep you warm all night. Just make sure it's super secure and wrapped in a towel or cozy or something to prevent hurting yourself.
Sleep only with the thinnest layer; pull insulating clothing on top. Restricted movement is the problem, along with regulating temperature. Ask, what is the comfort band for sleep? Most are comfortable at 83° ±5° near body. At home, some like to set thermostat to 72° with a blanket to raise near-body temperature to 83° ±5°? Others like 76°-thermostat with a sheet to achieve the same 83° ±5°? Outdoors, achieving that narrow-band of comfort is made much more difficult by wearing insulation layers. Remember, too hot is much more dangerous than too cold and unlike home, ambient temperatures fluctuate outdoors. (more...)
So if one is ever comfortable wearing all that clothing at the coldest ambient temperature, they are sure to overheat at some point during the night? Sloughing-off or pulling-up a puffy to/from the side is easy and without disrupting sleep; taking a puffy off is not.
You make an excellent point about the comfort band. Typically we go to bed having (hopefully!) eaten a good meal and being somewhat active from camp chores. As the night progresses, the ambient temperatures normally drop and our metabolic processes slow. Waking cool or cold at 3-4 am is not unusual in my experience. The flip side is that you might go to bed cold for some reason and over insulate to warm up.
It's not easy to match the insulation perfectly for a whole night to a narrow temperature comfort band based on ambient conditions and metabolism. Some adjustments are always needed - I'll only wake up if I'm too hot or too cold. I find it interesting that people say you just need the right gear. I own one winter sleeping bag - I don't have 25 to choose from to match the perfect bag for nighttime low of -22.1C with 62% humidity and having eaten 951 cal at 6:12 pm. What about night #2 and #3 when the conditions are different?
So yes, I agree with you - the adjustments are done with clothes. There's no perfect solution, it's impossible due to all the variables.
@@KaneDoesOutdoors - That wasn't the point. The point was to not wear bunches of clothes, but rather to keep them in the sleeping bag (or better a bivy) and pull them on top if cold and drop them to the side if hot. It's at least as warm and widens the comfort zone. Finally, too cold wakes one up, but being too hot leads to a soaking wet bag. Wet bag is way less likely without worn insulation.
@@tomnoyb8301 I understood that and agree. I pile stuff on top of me in the bag.
you can always open up your jacket?
'sleep naked, that's just stupid' lol, love how it's said
One way is too buy - 20 sleeping bag or colder & 4 season sleeping mat
That's pretty much what I use. But sometimes you'll dip below the rating of you bag. My last trip went below -25C and layering up evenly got me through the night without any problems.
The more layer/cloth you wear the warmer you are, period. Some people pretend the opposite, it is against plain simple logic. You carried your puffy in your backpack, it would be stupid not to wear it if you feel cold.
100%
never put all of your ecw clothing on when in the bag, this will cause issues with convection and conduction, youll either eventually end up too hot and sweat in the bag and compromise your kit, or you wont be able to get warm quick enough and wonder why you're still freezing in the bag with all your warm kit on, best to go in with base layers, and fresh pare of socks, wiggle and move untill you feel your extremities are at a comfortable temp, never breathe inside the bag, zip and pullm it tight leaving your moth and nose exposed to combat condesation in the bag,
I'm not following the logic... will putting more clothes on make you too hot or too cold? It's very hard to be too hot in -30C.
Let me tell you from experience that if you have a sleeping bag that is comfort rated to -10C or -12C, with a limit rating of -20C and the temperature drops to -30C, you will put on all your clothes. Theory is nice, but in practice you will do whatever you can to get some extra insulation. If you're out in those conditions and you have a big down parka, insulated pants, mittens, camp boots, you will put them on in your sleeping bag. I guarantee it.
There may be a limit to this. I once wore my one-piece down mountaineering suit inside my -30C down sleeping bag. I swear it was colder than without the suit. And I have close to 100 winter nights in that bag to compare with. Perhaps the two layers of down were compressing each other? The suit wouldn't have had too much moiture in it either because we weren't actually on a climb.
The suit was a vintage, but freshly washed, Mountain Equipment (the UK brand) and the bag was an MEC Thor Windstopper -30 which i would describe as neither narrow nor roomy as far as mummy bags go. The suit's previous owner wore it to the North Col of Everest so perhaps there was some cold stuck in it :)
Love your content. Keep it up.
Might have been compressing the down, that makes a lot of sense to me.