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The Best Winter Sleeping Bags for Cold Weather Camping

Camping in the winter can be cold, very cold.

In addition to a winter tent, no other piece of winter camping gear is as critical to staying warm as a winter sleeping bag.

We’ve reviewed the best cold-weather sleeping bags available right now. We focus on temperature rating, insulation, comfort, packed size/weight, and durability to narrow down your choices to just a handful of the very best. We then sort down our top choices by best application: winter camping, winter backpacking, mountaineering, and so on.

Once we walk through the best cold-weather sleeping bags, we’ll show you exactly how to choose the best cold-weather sleeping bag for you.

Our Top Picks

Best Overall
Nemo Sonic 0

Best 2-Person
TETON Sports Celsius Mammoth Double

Budget Options
Coleman North Rim Mummy Sleeping Bag – Low Temp (0-20F)
Bessport Mummy Sleeping Bag – Moderate Temp (20F+)

The Best Winter Sleeping Bags

Best Overall

Nemo Sonic 0

The Best Winter Sleeping Bags for Cold Weather Camping 1

The Nemo Sonic 0 is a full-featured winter sleeping bag that’s so comfortable you’ll think you’re sleeping at home!

This mummy bag features a wide cut, wider than any others we reviewed. The extra space makes this an excellent winter sleeping bag for those that demand a little extra wiggle room at night. The bag is comfortable for side, back, and stomach sleeping. Despite the extra room, the sleeping bag is very lightweight. However, the spacious design does mean that the bag isn’t as well insulated as others in its price range.

The Sonic 0 is rated down to 0° F. It’s filled with 850 powder down. A big hood and tight-sealing draft collars further help increase warmth. Unique zippered vents allow you to better ventilate the bag on warmer nights, thereby increasing its versatility. 40-denier ripstop on the foot box and 20-denier ripstop on the rest of the bag ensure durability.

What We Like:

  • Spacious
  • Very Lightweight
  • Lots of Features

What We Dont Like:

  • Not as Well-Insulated as Other Models

Best Double Sleeping Bag

TETON Sports Celsius Mammoth Double Sleeping Bag

TETON Sports Celsius Mammoth Double Sleeping Bag - 0° & 20° Degree Options - Taffeta Queen-Sized Cold-Weather with Full-Length Zippers - 2-Person Camping Accessory for Car & Tent Campers, 0°F, Green

The TETON Sports Celsius Mammoth Double Sleeping Bag is the perfect economy bag to snuggle up and stay warm with your significant other!

In addition to not breaking the bank, this bag features a lifetime warranty, a no-snag 2-way zipper, and draft tubes that help keep the cold out.

Budget Option – Low Temp (0-20°F)

Coleman North Rim Mummy Sleeping Bag

Coleman 0°F Mummy Sleeping Bag for Big and Tall Adults | North Rim Cold-Weather Sleeping Bag

More people probably own this mummy sleeping bag than any other, and for good reason. As the most recognized brand in camping, Coleman has put together a reliable and warm sleeping bag here.

The Coleman North Rim Mummy sleeping bag is rated 0-10°F so you can be sure this bag will keep you warm in some of the coldest weather.

Draft tubes, insulated footbox, and hood tighteners all ensure the warmth stays in this bag.

Budget Option – Moderate Temp (20+°F)

Bessport Mummy Sleeping Bag 15-45°F

Bessport Mummy Sleeping Bag | 15-45 ℉ Extreme 3-4 Season Sleeping Bag for Adults Cold Weather– Warm and Washable, for Hiking Traveling & Outdoor Activities

The Bessport Mummy Sleeping Bag is a very inexpensive sleeping bag, but it’s known for being incredibly warm.

If you’re a serious winter camper, this probably isn’t the bag for you. But if you’re not planning to use it often, it’s not that cold, there are a number of people sharing a tent, or you have a tent heater – well, it might be perfect for you!

Marmot Sawtooth 15

The Best Winter Sleeping Bags for Cold Weather Camping 2

The Marmot Sawtooth 15 is an excellent winter sleeping bag for casual campers looking for something that is reasonably priced but not lacking in performance.

Although it’s not quite as warm as others on our list, the 650 down powder does a good keeping you warm at night. Throw in a number of features designed to make the bag easier to use and more comfortable, like anti-snag zippers and a wrap-around foot box, and it’s easy to see why this bag is so popular.

Remember that although this winter sleeping bag works well for casual winter camping, it’s not warm enough for serious winter conditions. The trade-off is that you won’t get sweated out nearly as much if you use this bag in spring or fall.

What We Like:

  • Affordable
  • Reasonably Warm
  • Anti-Snag Zippers

What We Dont Like:

  • Least Warm On Our List

Best for Mountaineers

Marmot Col -20


The Marmot Col -20 is one of the warmest and most weatherproof winter sleeping bags available today.

It’s rated for temperatures down to -20°F. Yet, it’s not only warm, but it’s also extremely packable. It’s the ideal choice for winter backpacking where space is at a premium. 800-fill down, a draft tube and collar, and an insulated hood all provide superior warmth while a waterproof shell keeps moisture at bay.

The Col -20 is also notable for its roominess. Although it’s a mummy bag, it’s very spacious and comfortable. Yet this spaciousness does little if anything to sacrifice insulation. This winter sleeping bag is all but unmatched for long winter camping expeditions.

What We Like:

  • Very Warm
  • Most Weather Hesitant
  • Small Packed Size

What We Don’t Like:

  • Heavy & Expensive

Best for Winter Backpackers

Western Mountaineering 10

Western Mountaineering 10 Degree Versalite Sleeping Bag Moss Green 6FT / Right Zip

The Western Mountaineering 10 is warm, lightweight, and packs down very small.

It boasts 850-fill down for an excellent warmth-to-weight ratio. It also compresses easily for superior packing. In fact, this is one of the lightest winter sleeping bags around. That said, it’s still not restrictive (although it is narrower than other models). Additional highlights include a wide raft collar, well-fitting hood with drawstring, and snag-free zipper.

Although this Western Mountaineering bag is a great choice for all winter campers, it’s ideal for long-distance winter backpacking where lightweight is a prime concern.

What We Like:

  • Lightweight
  • High Warmth-to-Weight Ratio
  • Snag-Free Zipper

What We Don’t Like:

  • Shallow Hood

Mountain Hardware Lamina 15F

Mountain Hardwear Lamina 15F/-9C Regular

The Mountain Hardware Lamina 15F is the best winter sleeping bag for those on a budget.

Not only is this sleeping bag notable for its affordable price, but also for the level of performance it provides at these markdown rates. It utilizes ThermalQ synthetic insulation, zoned insulation, an ergonomic draft collar, a well-fitting hood, and a mummy bag cut for maximum warmth and insulation. It’s rated down to 15° F.

Despite its low-temperature rating, this cold-weather sleeping bag isn’t suitable for very cold conditions. It’s best for more casual winter camping than anything. It’s certainly not suitable for winter backpacking or mountaineering where extreme conditions are expected.

What We Like:

  • Affordable
  • Reasonably Warm
  • Weather-Resistant Exterior

What We Don’t Like:

  • Zipper Prone to Snagging


Big Agnes King Solomon 20

Big Agnes King Solomon (600 DownTek), 20 Degree, 40" Double Wide

The Big Agnes King Solomon 20 is a two-person bag that takes the cake as the best double sleeping bag for winter camping.

Although it’s not suitable for backpacking or mountaineering, it’s still quite lightweight for its bulky design. Better yet, it’s very well-insulated and stays warm in temperatures down to 20° F despite its roomy interior. A draft collar and dual hoods with drawstrings kick warmth up another notch.

A double sleeping bag is ideal for couples that like to sleep under the same blanket or solo campers with a small child. Although there are not many options available, there’s no denying that the King Solomon 20 comes out on top.

What We Like:

  • Fits 2 People
  • Wide & Long
  • Warm & Well-Insulated

What We Don’t Like:

  • Bulky & Heavy

Marmot Women’s Ouray 0

The Marmot Women’s Ouray 0 is the ideal winter sleeping bag for women thanks to its smaller size and extra insulation.

Because women are usually a little smaller than men, and also sleep colder than men, this winter sleeping bag is a little shorter, narrower, and better insulated than the men’s version of the same model. It’s cut for a women’s body (narrower in the shoulders, wider in the hips) for the absolute best insulation possible.

The Women’s Ouray 0 utilizes 650-fill duck down with a multi-baffle hood, down-filled collar, and draft tube for even better insulation and worth. Other notable features are the anti-snag zipper and wraparound footbox. Not only is this one of the best cold-weather sleeping bags for women, but it’s a good option for smaller men and children as well.

What We Like:

  • Small Size
  • Increased Insulation
  • Snag-Free Zipper

What We Don’t Like:

  • Not As Light as Similarly-Sized Models

Winter Sleeping Bag Buyer’s Guide

Yellow Winter Sleeping Bag on Snow

Cold weather sleeping bags might look all the same, but there are actually a ton of variations between models. That’s why a little knowledge of the key components and features goes a long way toward making the best purchase for you.

Here’s what you need to know to buy the best winter sleeping bag:

Temperature Rating

A sleeping bag’s temperature rating is the manufacturer’s recommendation of the lowest outdoor temperature in which the bag will remain comfortable for the average user.

It’s important to select a bag with a temperature rating as low or lower than the coldest conditions you’ll encounter while winter camping. Around 10° F lower is a good baseline.

Know that temperature rating varies from manufacturer to manufacturer. Although the majority of brands use the European Norm (EN) 13537 Testing Protocol, it’s far from a worldwide standard.

Insulation Type

Your options for insulation for winter sleeping bags include down (duck or goose), water-resistant down, and synthetic insulation.

The insulation is what traps your body heat inside the bag at night. It directly influences temperature rating and warmth. Although each type has its own benefits, water-resistant down is best for winter camping thanks to its excellent warmth-to-weight ratio.


Unless you’re camping in mild winter conditions, a mummy sleeping bag is the way to go.

The streamlined shape of a mummy bag cuts down on weight while simultaneously adding warmth and insulation. They provide the most heating efficiency of any shape.

Size and Weight

For winter backpacking, and often mountaineering, a lightweight and packable winter sleeping bag is a must.

A winter mummy bag filled with down insulation is probably your best bet for a lightweight sleeping bag that packs down small while still providing great heating efficiency.

Construction and Materials

Ripstop nylon and polyester are the most popular materials for the shell of a winter sleeping bag. High denier fabrics are best. The shell must be waterproof and treated with a DWR finish.

The most common inner lining material for cold weather sleeping bags is polyester (or, sometimes, nylon taffeta) since it is soft and breathable.

Another important factor to consider is insulation construction. Or, how the insulation is held into place between the outer and inner layers. Most winter sleeping bags utilize baffle insulation. These are the seams running across the outside of the bag. The goal is to keep the insulation in one place so it doesn’t shift around at night.

Additional Features

Important additional features that can make a cold weather sleeping bag warmer and more comfortable include:

  • Hood – A hood that cinches up tight around your head for added warmth.
  • Draft Collar – An insulated ring around the opening of the sleeping bag to limit the amount of cold air that enters.
  • Draft Tube – An insulated tube that extends along your zipper to prevent cold air from getting inside.
  • Foot Box – The space at the bottom of a sleeping bag. Look for a more spacious footbox if you sleep on your sides or turn over a lot at night.
  • Zippers – Strong, robust zippers are ideal for winter camping.

Winter Sleeping Bag Care, Maintenance, and Repair

Man in Sleeping Bag Outside in Snow in Front of Tent

Proper care and maintenance greatly extend the life of a winter sleeping bag. Here’s how to care for and maintain a sleeping bag:

On the Trail

Keep your sleeping bag as clean as possible. I typically wear a separate set of socks and underwear in my bag at night. Shake the sleeping bag out each morning. If possible, let it dry for a few moments in the sun before putting it away.

At Home

Completely air out your winter sleeping bag after each trip. Hang it in a cool, dry place like a garage for multiple days until it’s completely dry. I prefer to store my sleeping bag spread out in this same manner. If space is a limitation, try out a special sleeping bag storage bag.


Avoid deep cleaning your sleeping bag unless absolutely necessary. Spot cleaning, on the other hand, is less harmful. Use a toothbrush and a mixture of laundry detergent and warm water to clean any dirty areas.

If you do need to deep clean a sleeping bag, avoid the dry cleaners. The detergents and solvents they use are too strong and might cause damage. Instead, wash your sleeping bag in the bathtub with warm water. Use a special laundry detergent that’s designed for items filled with down. Massage the bag with your hands to clean and then rinse all the detergent away with warm water.

Work out the excess water with your hands in the tub. Once the bag is as dry as possible, hang it dry for a night or two in a cool, dry place like your garage.


Luckily, the majority of winter sleeping bags are designed to stand up to their fair share of on-the-trail abuse.

If yours does break in the field, say a zipper or small tear, you’ll usually be able to ride out the damages until you get home. That said, a few tape patches like those used for bike tires, can help seal up a tear. If you carry a tent repair kit, you probably have a few of these on hand already. Duct tape also does the job in a pinch‚ but it can easily result in a sticky mess that causes more harm than good once you get back home.

Best Winter Sleeping Bag Accessories

Woman in Winter Sleeping Bag on Snow

A properly-rated cold weather sleeping bag does a lot to keep you warm while camping in winter. But a few additional pieces of equipment will keep you even warmer!

Here are the most important winter camping accessories to consider:

Sleeping Pad

A sleeping pad doesn’t just provide more comfort. It also provides an extra layer of insulation from the cold ground at night.

For winter camping, I recommend doubling up on the sleeping pads. Bring a closed-cell foam pad for insulation and an inflatable air pad for cushion. Or, look into a specially insulated sleeping pad with a high R-value.

Camping Cot

Like a sleeping pad, a camping cot can help add extra insulation to your sleep setup. A cot also lifts you up off the cold, and potentially damp, ground. The problem is that cold air will circulate underneath you. If you use a cot for winter camping, then you absolutely need to use a sleeping pad on top as well.

Sleeping Bag Liner

A sleeping bag liner helps keep your bag clean. It works much like a set of sheets for your bed. Simply take them out and wash them at the end of each trip to extend the lifespan of your sleeping bag.

Another winter-specific benefit of a sleeping bag liner is extra insulation. The right liner provides an extra layer of insulation to help keep you even warmer at night. The best for winter camping are made from flannel or Thermolite.


A pillow makes camping much more comfortable. They also provide extra insulation and warmth for your head at night. A compressible pillow filled with a soft foam material is better for winter camping than an inflatable air pillow.

Tent Heater

Car camping in the extreme cold often necessitates a winter tent heater. These devices usually run on propane and are a great way to heat up your tent in the morning and at night. One of our favorite tent heaters is the Mr. Heater Little Buddy.

Other Ways to Stay Warm While Winter Camping

Winter Backpacker Hiking Uphill in Snow

Your winter camping sleeping bag does a lot to keep you warm. But sometimes, especially in extreme cold, you’ll need a little extra help. Here are some additional tips to stay warm while camping in winter:

Insulation is Key

The key to staying warm while camping in the winter is insulation. This starts with your cold weather sleeping bag itself but also extends to your sleeping pad and sleeping liner. And, to a minor extent, it includes your tent. The more insulation you can add to your winter sleeping setup, the warmer you’ll be at night. Here are some tips on how to insulate your tent for winter.

Wear Clothing to Sleep

A thin layer of clothing helps provide a warmer night of sleep. Although any type of clothing will do, your best bet is a clean layer of synthetic clothing, such as long underwear.

The catch is that you don’t want to hinder ventilation. If you wrap up with too much clothing on, you might start sweating. That sweat then has the potential to freeze and lead to a night spent shivering. This is actually why you want to avoid cotton clothing if possible in favor of something that will wick the moisture away from your body.

Hot Water Bottle

One of the worst things about camping in the winter is the first half an hour or so after climbing into your sleeping bag. Once it warms up thanks to your body heat, you’re in the clear, but those first minutes can be excruciatingly cold.

A good solution is a hot water bottle or even a Nalgene bottle filled with hot water positioned at the bottom of your bag to help raise the inside temperature more quickly.

Eat Right & Exercise Before Bed

Stay warm while cold camping by eating well throughout the day. Your body will work hard to burn off the food, creating extra heat in the process.

The same goes for eating a midnight snack. As long as bears and other wildlife aren’t an issue where you’re camping, keep a few snacks on hand to eat throughout the night for a boost in metabolism.

Exercise is equally important. A few minutes of exercise right before crawling into your winter sleeping bag will warm you up and heat up your sleeping bag faster. A few jumping jacks work well.

Buddy Up

Body heat is one of the best ways to stay warm while winter camping. If you’re camping with someone you feel comfortable cuddling up next to, the shared warmth works wonders at keeping you warm.

Although sharing the same bag, or trying out a two-person sleeping bag, works well, body heat actually radiates through thick sleeping bags. So, all you really have to do is move your sleeping bags close together and sleep next to each other to reap the rewards of your camping partner’s body heat.

Final Thoughts

Winter Sleeping Bag Hanging on Rope

Staying warm at night is a crucial aspect of camping, no matter the conditions. But it can quickly become a matter of life and death, not just comfort, in the winter.

Take your time to choose the best winter sleeping bag for your needs. Most importantly, look for a model with a temperature rating lower than the coldest temperatures you expect to encounter on your trip.

Still not sure which bag is right for you? Don’t hesitate to reach out to us in the comments below with your questions!

And don’t forget to check out our guide on how to wash a sleeping bag to prevent odor and extend its life!

Cindy Miller

Wednesday 28th of November 2018

Hi Jake,

I really appreciate with good contributions to the sleeping bag, it 's very important for campers, especially winter. After reading, I have more knowledge for choosing a new sleeping bag