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Sleep Warm Anywhere

Sleep Warm Anywhere
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Let me emphasize something: The picture of me sleeping outside in the snow is not a good idea. I did not sleep well. But I did survive, and since then I've learned some tricks that would've kept me plenty toasty. Many of these seem like common sense when you read them, but you'd be surprised how few people think of them. I didn't, without a lot of trial and error. Here's what I learned so that you don't have to make the mistakes I did.

Keep in mind that most of these techniques assume dry weather. If it's raining or snowing, the steps are the same, but you'll have to do them inside your tent or vestibule. It is also assumed that you have a sleeping bag rated for around the same temperatures you're likely to be experiencing, but the techniques demonstrated here can give you some wiggle-room with that. Remember: being prepared is always step one.

As always, anyone see something I'm doing wrong, could be doing better, or should be doing that I'm not, let me know!

Also, with the exception of the two intro pics, they're all staged on a closed course by professionals, but rest assured that these techniques do work. Hopefully, they'll help you get a better night's sleep, and in doing so help you better enjoy the great outdoors.
 
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Step 1Put on Your Fly.

Put on Your Fly.
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This seems like a no-brainer, especially with a mesh-canopy tent like mine, but it's very, very important in frigid conditions. Not only does your fly block wind, keep in heat and keep off rain or snow, many tents are actually designed so that the fly helps prevent condensation, and a dry sleeper is a warm sleeper.
The fly also provides a vestibule, which is an extremely useful thing to have, especially in windy or rainy situations.

On the downside, it does block your view of the stars, but I can forgo marveling at the majesty of the cosmos if it means not freezing to death.
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346 comments
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Mar 28, 2010. 11:09 PMsockless says:
I personally prefer to wear almost no clothes, but I throw my clothes in my bag with me. The sleeping bag should warm up with your body heat, so you shouldn't need warm clothes.
Apr 18, 2010. 5:17 PMdaemonkrog says:
I've found this works much better than layering up for sleeping. If you sleep in the buff, any sweat you might produce will be wicked away by your sleeping bag. If you're sleeping in clothes, they're very likely to soak up that moisture and then you'll get cold.

If you do need to wear clothes to stay warm, I'd suggest just getting a better sleeping bag or a wool blanket (wool wicks away moisture), or you could wear wool clothing. I prefer the better sleeping bag because it's less weight, but if that's not of any concern then a nice wool blanket would work perfectly.
Dec 28, 2011. 2:14 PMBlaaken says:
Or instead of the wool blanket, even if your sleeping bag keeps you warm, get long johns. They're amazing lol
Dec 28, 2011. 2:11 PMfostermoody says:
Actually, a good trick I have found is that you can combine steps 6 & 7. It does mean that you can't drink out of the bottle, but you do get the benefit of not losing any of your precious body heat.

Unfortunately combining the steps is a fair bit less convenient for that half of people with female urinary tract, though still doable if they're careful.
Jan 19, 2009. 7:37 PMvocalpatriot says:
ever use a pee bottle?
Nov 18, 2011. 8:22 PMblodefood says:
The mechanics of that are rather awkward and you lose heat when you squat over the bottle. Using a pee funnel is recommended.
Jul 30, 2011. 12:48 PMkchristensen6 says:
label your pee-bottle or be ready to find out what it tastes like. Or just make sure you are paying attention when you are thirsty.
Jul 30, 2011. 6:01 PMFoaly7 says:
Not if you're Bear Gryllis
Jan 20, 2009. 4:42 AMvocalpatriot says:
no point in giving up the warmth we've conserved half the night..just make sure the designated bottle is CLEARLY marked with tape or use one that is very different so you can feel it in the dark and not mistake it for a water bottle (need i say more?)
Feb 6, 2010. 10:42 AMMerugop says:
 LOl did it happend to you?!
Jul 10, 2009. 11:57 PM12345678890 says:
Any one want mountain dew?
Nov 18, 2011. 7:26 PMGelfling6 says:
Mutiple layers are good, but I actually found simple makes better too.. I learned this many times camping out at Renaissance faires, in a simple tent, a close-fit sleeping bag (mummy style) is best for keeping out the elements, even in a tent. (cursing the mutiple times a tent seam decided to leak during a rainstorm!). On the cheap, You can go with flipping your shirt & T-Shirt inside out, but keeping it over, and around the back of the head, and just above the bridge of the nose, so that your nose & mouth are the only things exposed. , and curling up into a fetal (legs/knees bent, and close to the chest.) inside a fairly thick sleeping bag, works. Also did this as semi-survival during recent power outage caused by storm Alfred. Idea, is to keep in a close formation, and keeping the top of your head covered, while still allowing breathing. You'll notice if you stretch out full length (legs straight out) you'll tend to get cold again.
Nov 18, 2011. 4:40 PMandragairdna says:
If your out and about on the town, be sure not to be wearing the tight trouser that's all the rage. Any covered bin will yield a dry newspaper or two. Trouser ends tucked into socks, crumpled newspaper stuffed anywhere and everywhere and a park bench, pallet, bush will have ye looking like a half baked michelin man but ye'll be snug! The ground sap's heat because it's large and solid, things that keep you warm trap air and hold their shape. If you lie on them, those air spaces need to stay intact with bodyweight or you conduct. In town corrugated cardboard is a pal. Snow insulates because it holds air even when you lie on it unless you melt it, so the snow needs to be insulated from you in order to insulate you back! Better off with a bed of twigs and sticks (or anything with spaces) covered with almost anything that's comfortable enough. Bare ground is a bodyheat vampire that's easily accomodated with a bit of preparation and even preparation can keep ye warm.
Nov 18, 2011. 2:23 PMxFyrios says:
Layer's layer's layer's! When dressing warm it's always important to where layer's! If something gets wet, just take it off, if you get too warm hiking, take something off and prevent your inner clothes from getting wet. When out in the outback layey's are always a good idea! :)

It's much more efficient than wearing something big and bulky and warm.
Sep 28, 2011. 6:21 PMZeppelinfreak says:
Wool blankets work well, just sayin.
Jul 17, 2011. 8:53 PMSIRJAMES09 says:
I love that fur hat!!! is that fake or real fur??
Jul 18, 2011. 12:42 PMSIRJAMES09 says:
see my thoughts are a wee bit different....

I think that fur coats & hats are ok to a point....but the industry in this country has gotten out of hand. they process way too many animals, for things that most people would never buy in the first place, and the ones that would(most of them) are not there to begin with....they have more $$$$$ than common sense.

I do hunt, and I do make things out of the skins...but everything I kill, goes into my freezer for food at a later point in time. I try not to waste ANYTHING. not the fur, bones, feathers, NOTHING. the stuff I make from what is left of the animals & birds I kill, I sell.
Feb 15, 2011. 1:49 AMcletusjo says:
On the issue of water vs rock. Perhaps you are correct on a volumetric however volume is a 3d measurement. A foot cube of water will be considerably less dense/heavy that the same block of stone. So from a space perspective the rock should win. Density water ranged from 1.860 at 212 F to 1.940 at 32 F. while "granite" since you mentioned it, has a range of 2.6-2.7.
2.65 / 1.9 = 139% increase in density.
So if rocks are available and you have a fire, you should have already built a heat wall to reflect the radiant energy of the fire at yourself from the far side of the fire. Why not use those same rocks again to stay warm through the night.

You could also start a small fire, dig a trench a few inches deep and your body wide, piling the dirt all to one side... then build the fire along the length of the pit. and put in rocks.. then when it's time for bed you knock the dirt over the fire putting it out and trapping all the heat underneath. Put your sleeping back on top and roast away.
Jul 17, 2011. 8:18 PMSIRJAMES09 says:
make sure you have AT LEAST 6 INCHES of dirt on top of the rocks & hot coals...otherwise, you'll be needing another sleeping bag & maybe a trip to the hospital for the burns you get from the hot coals.

But sleeping on rocks & hot coals is what I always do...works every time. :)
Jul 24, 2009. 6:57 PMDixieGeek says:
If you're going to bed, you probably want to avoid caffeinated beverages for two reasons - 1) sleeplessness and 2) having to relieve yourself in the middle of the night and thus possibly losing all the warmth you've built up in your bag.
Jun 9, 2011. 5:24 PMbmartinez-3 says:
Also caffeine Dehydrates you. Never a good idea to have caffeine on a hike.
May 23, 2011. 4:09 PMtrevyboy says:
And if all this doesnt work, just stuff a bunch of hand warmers in your sleeping bag :)
May 18, 2011. 8:10 PMThe Locksmith says:
This is a great guide! One thing that I HIGHLY recommend is a horse blanket. I have one, and it is at once the lightest, thinnest, and warmest blanket I own.
Mar 20, 2011. 9:18 AMcjs1298 says:
I my BSA troop, we put hand warmers all within the interior of the bag.
May 18, 2011. 8:05 PMThe Locksmith says:
That's a fantastic idea! Hand warmers can be had for 89c at my local gas station, and they put out a good deal of heat for a solid 6+ hours.
Feb 27, 2011. 10:41 PMmsl490 says:
Best investment I ever made was a Mountain Hardware Bivy Bag, the one I have zips into the sleeping bag zippers making entry/exit easier and it adds several degrees to the bags comfort rating. My tent is a Cabelas Predator Bivy that warms pretty quickly because of the small size. I also stick to light weight long underwear and a knit cap for sleeping in. This set up keeps me warm down to about 15-20 degrees. Happy Trails!
Feb 8, 2011. 2:18 PMscoutysteve says:
Hi, I've been a scout leader for over 15 years & a scout before that. I agree with the use of a mat or pad to keep you off the ground. But the best advice I had when I was a mear cub scout camping out in the cold, is simply double up with another sleeping bag. One inside the other. I've never been cold at night even with snow on the ground. I've past this gem onto my scouts & we've never had any scouts of the blue smurf variety!
Apr 6, 2009. 4:09 PMshawna68 says:
I bought the little hand warmers and put them in my backpack, they take up no room, so when I went to "bed" I just opened them and gave them a little shake to activate and stayed warm all night, since they are 10 hour warmers the nest morning it was very cold and I had them to put in my pockets.
Jan 28, 2011. 4:34 PMArano says:
what type of hand warmers do you mean? those NaAc ones (those plastic bags with liquid and a metalchip which turn solid and warm when the chip is bent) or a type of handwarmer that burn coal or lighter fuel?
Jan 22, 2011. 8:26 PMKementari says:
I've used hand warmers in my sleeping bag for cold-weather camping and they work GREAT. They make a big difference in how quickly the bag warms up.

I also bring some when traveling, even when I expect to sleep in a bed, in case the hotel or friend's house I'm staying at is too cold.
Jan 19, 2011. 11:06 AMwakojako says:
What camera do you use? Private message me please
Dec 29, 2010. 2:00 AMakoutdoors says:
set the white balance with the upper part of my arms..... That is classic...epic win!
Dec 17, 2010. 6:11 AMOkieJohn says:
I went through the US Army’s cold weather training in Alaska and they taught us that snow is a great insulator. That’s why igloos work so well. After we pitched our tent, we threw snow on the sides. If we didn’t have a tent, we were taught that we could wrap our sleeping bag in a poncho to keep the moisture out and cover up with snow.
In less than arctic conditions, I have found that I would get too warm at times. A poncho liner or sheet came in handy for cover when I opened up my sleeping bag a little to cool off. If your sleeping bag is big enough, or you are small enough, you can get undressed/dressed in your bag. The moving around getting undressed will get you and your bag nice and toasty. They also taught us to remove our clothes down to T-shirt, shorts and sleeping hoods.
Nov 30, 2010. 5:36 PMgnomonklater says:
I agree with all the comments about stripping down to your underwear when you get into the bag. Put your clothes in there with you so they will be nice and warm when you go to put them on in the morning. I never worried too much about that though. My tight-fitting, zero degree mummy bag barely had enough room for me in there, so I didn't worry about that. I might keep on a pair of thin polypropylene pants and shirt, so that would insulate me against any cold clothes I would have to put back on in the morning.

The other thing I would do too, is about an hour before I went to bed, I would eat a large Butterfinger candy bar. This candy bar had, at that time, the highest amount of calories of any candy bar. During the night, my body would process the calories to help keep me warm. I never worried either about any healthy aspects of doing this, as I didn't do this every night of my life, just when I went camping/backpacking in zero degree temps. When mountaineers climb alpine peaks, they actually eat sticks of butter to help them keep warm. Yum! I definitely NEVER drank anything before going to bed. Nothing is worse than waking in the middle of the night, putting your boots on and nothing else, and running outside to pee real quick. That is the worst! These are the rules I have followed throughout 40 years of being in the outdoors through the coldest temperatures.
Nov 7, 2010. 9:50 PMDireWolf369 says:
My military experiance sleeping outdoors has been good to bad over my 20 years. It is important to strip down as far as you can go. generaly T-shirt and shorts or underwear. Jacket and pants would go in the sleeping bag with me so my body heat would warm them and i would be putting warm clothes on in the morning.
I found that a poncho liner in my sleeping bag kept me warmer. The importance of something between your sleeping bag and the ground can not be understated. As well as keeping out of the wind. I learned that the by a night of shivering on a hood of a hummer during a cold snap in April. My light weight bag and poncho liner fell short.
Soldiers that get issued a new sleeping bag find that they come with a sleeping cap so that Soldiers can cover their heads when they sleep. It also allows the head to be exsposed and your warm moist breath to be expelled outside your bag.
Thanks for the post and the good comments.
Oct 5, 2010. 2:40 PMSt Jimmy says:
When you sleep, your body expends energy and heat trying to keep your pee at body temperature, so if you need to go, GO. If you're too cold after a midnight sprint to the nearest tree, do some press-ups or something in your sleeping bag to warm up again. Getting rid of unwanted fluid will help you get a better night's sleep
Sep 24, 2010. 9:55 AMkscott says:
Love silk thermals - light weight & pack easy. Oddly enough the local JC Penny outlet usually has them for ~$3 each just before Christmas... Awesome.
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Author:Mother Natures Son