Best Cold Weather Sleeping Bags

There are probably several different scenarios where you will feel the need to possess a sleeping bag, hence why you are reading this right now. However, when the climate gets cooler outdoors and the nights turn frigid, you need one that will keep you warm and toasty throughout the night. Thankfully, after you proceed to this buying guide, you will begin to learn what the most important factors are when investing in cold weather sleeping bags (and be witnessed the best sleeping bags in the world). Though be warned, high-quality comes at a price with most of these heavily-insulated sleeping bags.

Nemo Sonic
  • Nemo Sonic
  • 5 out of 5
    Our rating
  • Waterproof
  • Breathable
  • Price: See Here
Western Mountaineering 10
  • Western Mountaineering 10
  • 4.9 out of 5
    Our rating
  • Wide shoulder
  • 850-fill down
  • Price: See Here
Rab Neutrino
  • Rab Neutrino
  • 4.8 out of 5
    Our rating
  • Comfortable
  • YKK zipped pocket
  • Price: See Here

10 Best Cold Weather Sleeping Bags

 

 

Nemo Sonic

Nemo Sonic
If you were to illustrate to someone what the perfect sleeping bag looks like, the end result would be the Nemo Sonic Sleeping Bag. Its 850-fill down insulation, full-length center zipper and extreme comfort are just a few of the reasons why this should blow your mind.
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Insulation and Warmth

To deliver a superb amount of warmth, Nemo combines 850-fill down insulation and an internal collar draft. In addition, there are adjustable thermo gills that allow you to regulate the temperature. All this provides a temperature rating of 0 degrees Fahrenheit.

Zipper Design

With its implementation of a full-length center zipper, you have the ability to partially open the sleeping bag in times where you are overheating.

Comfort

There is a stretch construction at the knees which allows the bag to better keep its shape. In times where you wish to sleep on your side, this easily contours to your body. Also, with the waterproof and breathable footbox, the comfort is enhanced.

Portability

Coming included with a drawstring stuff sack and a cotton storage bag, you can pack and store the sleeping bag with relative ease.

Sizing

You can either select a regular or long version. For the regular version, it will fit up to 72 inches length-wise, 61 inches in the shoulders, and 58 inches in the hip.

Overall

It is hard to get better than this. With its combination of superior warmth, waterproof design, and convenience, you are guaranteed a sleeping bag that will keep you warm for years.
Pros
  • Has a waterproof breathable coating on the backside of the fabric
  • The thermo gills allow you to regulate the temperature
  • Features an internal draft collar to seal in heat
Cons
  • At times, the zipper snags
 

Western Mountaineering

Western Mountaineering
Despite the same rating, there is a reason why this sleeping bag is slightly beneath the previous. While all design areas remain impressive, the temperature rating is not quite as low but is still low enough to handle most winter nights (depending on where you are).
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Insulation and Warmth

Western Mountaineering also decided to utilize down insulation with their sleeping bag, in the count of 850-fill. But, the high-thread-count in the fabric shell of the bag seals in that insulation to deliver the maximum amount of warmth possible (to the degree of 10 degrees Fahrenheit). Plus, the interlocking draft tubes prevent drafts from entering in.

Zipper Design

With its full-length, YKK zipper, in times where the temperature is warmer than usual, you can simply unzip the bag to allow extra breathing room and ventilation.

Comfort

To allow for extra layering, when the climate outdoors is insanely cold, there is a wide shoulder girth.

Portability

Not only does the 850-fill down insulation deliver impeccable warmth, it is also highly-compressible making it easy to pack. Speaking of packing, this sleeping bag comes with a storage stuff sack.

Sizing

There are three different sizing options that you can select from and they all allude to your height. The options are for 5-foot-6-inches, 6-foot and 6-foot-6-inches.

Overall

Even with a slightly higher temperature rating of 10 degrees Fahrenheit, this is as elite as it gets. If you think about it this way, in climates that do reach in the negatives, the wide shoulder girth allows you to layer on extra clothing.
Pros
  • A wide shoulder circumference adapts for extra layering of clothes
  • The full-down collar seals in your body heat throughout the night
  • Has 850-fill down insulation
Cons
  • Has a somewhat disappointing temperature rating of 10 degrees Fahrenheit
 

RAB Neutrino

RAB Neutrino
If you happen to be the right size, then this could be good enough to be advertised as the best sleeping bag in the world. However, the trick is the size as RAB only provides one. It would be a shame if it is too small, as it may have the best insulation of any on this entire list.
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Insulation and Warmth

RAB uses 800-fill down insulation to fill their sleeping bag and in conjunction with its Pertex Quantum inner and outer fabric, it manages to score a temperature rating of an impressive -4 degrees Fahrenheit.

Zipper Design

This features a 3/4 length YKK zipper which allows for proper ventilation and breathability. In addition, there is also integrated anti-snag webbing tape for the zipper to prevent accidental snagging.

Comfort

To ensure a natural and warm feel at your neck, the internal collar and hood come equipped with a drawcord and are designed to be close-fitted.

Portability

RAB aims at making their sleeping bags lightweight and the Neutrino exemplifies that perfectly. Plus, they also include a dry bag compressions sack and a cotton storage sack.

Sizing

It is rather unfortunate that more than one size option is not available as you must match the sizing requirements for this bag. The max user height is 185cm, shoulder width of 70cm, a hip width of 52cm and foot width of 41cm.

Overall

Right away, if you know your body will easily fit in this sleeping bag then it could quite possibly be the most ideal choice on the entire list. Other than that, you may have to look elsewhere as you need to properly fit inside a sleeping bag to enjoy it.
Pros
  • The comfort is absolutely outstanding
  • Features anti-snag webbing tape for the zipper
  • Integrates a YKK zipped stash pocket
Cons
  • It comes in one length and one length only
 

Phanton Torch 3

Phanton Torch 3
If something could win on name alone, the Phantom Torch 3 would clearly be the victor. It just so happens that quality is kind of important and Mountain Hardwear proves that their Phantom Torch 3 is as terrific as the name suggests.
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Insulation and Warmth

Not only does the Phantom Torch 3 feature 800-fill down insulation, the down has been treated with a repellent that resists moisture and retains loft in damp conditions. Also, the face gasket blocks away drafts and helps to achieve a temperature rating of 3 degrees Fahrenheit.

Zipper Design

A durable two-way zipper is present on the side of the sleeping bag (which you can choose) for an easy exit and extra ventilation.

Comfort

With 10D nylon fabric that is soft to the touch, a natural footbox, and a six-chamber hood design, you are not only promised superb warmth but also comfort.

Portability

To allow for the easiest travel possible, Mountain Hardwear includes both a nylon compression sack and a mesh storage sack.

Sizing

If you are taller than most, there is both an option for a regular size and long size. The long size fits up to 78 inches in length, while the normal 72 inches.

Overall

When assessing the Phantom Torch 3, it is difficult to answer the question of what is wrong? Honestly, past the tendency for the zipper to snag, you must dig very deep to come up with legitimate gripes against this sleeping bag.
Pros
  • It is cut snug for the maximum warmth and weight
  • Single-handed drawcords allow for an easy adjustment
  • The draft collar seals the insulated heat inside
Cons
  • The zipper has snagging issues
  • While it is treated to repel water, it is not as weatherproof as other models

Cosmic 0 Degree

Cosmic 0 Degree
Even with the lower down insulation, the Cosmic 0 Degree lives up to its hype as a highly-insulated and extremely comfortable sleeping bag. While it is a little bulky and can cause issues when storing, its performance is unquestioned.
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Insulation and Warmth

Kelty, the makers of the Cosmic 0 Degree, secures a 0-degree rating by utilizing 600-fill down that has been treated with a water-resistant finish and a full draft collar for sealing out cold drafts.

Zipper Design

The 60-inch dual-sliding zipper, which covers most of the sleeping bag, is crafted with an anti-snag design.

Comfort

Proving plenty of room for your feet is the natural-fit footbox and in conjunction with the ripstop polyester that feels terrific against your skin, comfort is certainly not an issue here.

Portability

While there is a stuff sack that comes included, the sleeping bag itself is rather bulky. Thus, it can be a hassle to consistently fit it inside of the sack when you are traveling.

Sizing

Again, you get the option for either a long or regular version of the same bag. The only difference is the long version adapts for a longer length (78 inches), shoulder girth (64 inches) and width girth (60 inches).

Overall

Strip away the bulkiness and yet again, you are left with a sleeping bag that could easily be number one on this list. That speaks to the quality at play here and the fact that one small design issue can make the difference.
Pros
  • Has a temperature rating of 0 degrees
  • The off-set craftsmanship eliminates cold spots
  • Thermal comfort hood features drawcords for adjustment
Cons
  • For packing, the bag can be bulky and difficult to slide in the included sack

Marmot Trestles

Marmot Trestles
There is no written guide that states manufacturers must utilize down insulation for their sleeping bags. It just so happens that most tend to go with it, but Marmot proves that it is not necessary to create a fantastic version.
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Insulation and Warmth

Even without down insulation, instead using SpiraFil 120 high-loft insulation, the Trestles 0 sleeping bag is able to achieve a temperature rating of 0 degrees Fahrenheit. On top of this, the wave construction is able to eliminate cold spots ensuring thorough insulation throughout your entire body.

Zipper Design

On each side of the bag, thee are two-way zippers. However, one side is partially zipped while the other is half-zipped. This allows an easy entry inside the bag.

Comfort

With its unique blend of 3-denier spiral hollow fibers and 1-denier polyester fibers, in conjunction with its 3D hood and trapezoid footbox for a wider toe area, the Trestles 0 feels great to the touch.

Portability

Included with the sleeping bag itself is a compression stuff sack. However, the bag itself is quite heavy and it can be problematic to consistently stuff if in the sack completely.

Sizing

Amazon provides you with a regular sized version which will fit individuals approximately 72 inches in length or under.

Overall

While the heaviness and bulkiness can be a hassle when packing and storing this bad boy, it certainly performs well and does an admirable job keeping you warm on cold, bitter nights.
Pros
  • To keep the fabric from snagging, there is a zipper guard along the draft tube
  • Both the shell and fabrics are treated with a DWR finish to repel water
  • The drawcords make adjustment simple
Cons
  • When stuffing it in the included compression sack, it is difficult due to the bulkiness

Teton Mammoth

Teton Mammoth
Sometimes, you need more than one person to fit inside of one sleeping bag. For couples who do not want to spend money on two separate bags, the Teton Sports Mammoth Double Bag is a life saver.
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Insulation and Warmth

Much like Marmot, Teton integrates a different kind of insulation (SuperLoft Elite fiberfill) and an innovative construction to keep you warm while eliminating cold spots. In addition, to fully maximize its 0-degree temperature rating, the zipper and shoulder draft tubes keep drafts from entering in.

Zipper Design

As this bag is designed for two people, there are plenty of zippers to allow for easy access and ventilation. You can unzip this beast from both the sides and the bottom.

Comfort

Truly noteworthy here is that the brushed flannel liner that is integrated into the inside of this bag resembles the texture of bed sheets, making it comfortable to the touch.

Portability

Let’s get this out of the way, this is indeed a Mammoth as it clocks in at 16 pounds. Yes, there is an included Oxford compression sack but for backpacking, this is going to be extremely heavy.

Sizing

At 94 x 62 inches, this sleeping bag is enormous and is designed to fit more than one person.

Overall

To be honest, this is not the best sleeping bag for backpackers or anyone who plans on carrying their sleeping bag over long distances. Instead, this is ideal for individuals who are camping in the cold weather and looking for a massive size.
Pros
  • It has room to sleep, two people
  • Backed by a limited lifetime warranty
  • Is rated to survive temperatures that creep in the single digits
Cons
  • Has a massive weight of 16 pounds and is difficult to carry
  • Due to its size, it is a hassle to maintain

King Solomon

King Solomon
Indeed, there is more than one double sleeping bag option. Big Agnes happens to present you with this model and while it does not quite have the insulation capabilities of the Mammoth, it is more than four times lighter.
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Insulation and Warmth

Being rated to keep you toasty in temperatures that do not drop below 15 degrees Fahrenheit, this will adapt for average winter nights. To accomplish this, Big Agnes designed their King Solomon with 600fill down insulation and a ripstop nylon shell with a DWR finish to repel water.

Zipper Design

No doubt, this sleeping bag has many ways of access. With double zippers on both sides, you can enter from either side and produce an ample amount of ventilation. In addition, when it is unzipped it can be used like a comforter.

Comfort

Big Agnes takes pride in their dubbing of “The Mother of Comfort” and King Solomon is a great example of why.

Portability

As compared to the last double sleeping bag, this is significantly lighter and easy to compress. With the included mesh storage sack and nylon stuff sack, portability is a breeze.

Sizing

Again, this is specifically designed to fit two people or can be utilized as one if you like a lot of excess room while sleeping.

Overall

In spite of the somewhat disappointing temperature rating, although it will keep you insulated on average winter nights (depending on where you are), the King Solomon certainly justifies its name due to its quality.
Pros
  • You can use the top corner hand pockets to cover your shoulders
  • For its size, it compresses very well and is rather light
  • Properly sleeps, two people
Cons
  • More insulation and a lower temperature rating would be ideal

The North Face Inferno

The North Face Inferno
If one minor design element could have been added, the addition of side zipper, to the Inferno from The North Face, then this would be at the top of the heap. It is a headscratcher why a better zipper design was not integrated, but nonetheless, it remains an excellent choice.
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Insulation and Warmth

To prevent any heat loss, besides the 800-fill down insulation, there is both a full-draft collar and an implemented draft overlap. All in all, this is enough to hold up in temperatures that stay above 0 degrees Fahrenheit.

Zipper Design

While there is a half-way center zipper that allows for entry and exit, it could have been longer and side zippers would have been ideal. Unfortunately, the Inferno is severely lacking in this area.

Comfort

Due to the manner in which this sleeping bag was designed, it is simple to sleep in it with multiple layers of clothing on.

Portability

As with most sellers, The North Face includes both a compression sack and storage sack for easy transport and carry. As a bonus, there is an internal pocket that can be used as a storage location.

Sizing

The North Face provides you with the option of either a long or regular sized version. If you are over 72 inches in height, then you can select the long version which comfortably fits lengths of up to 79 inches.

Overall

For pure performance, this bag delivers in every area you want. It is highly insulated and is designed to prevent drafts, while also being comfortable to the touch. However, the zipper design is lacking and they may prove to be too big of an issue for you.
Pros
  • Features a water-resistant fabric to keep water and moisture at bay
  • The trapezoidal side baffle manages to eliminate the migration of the down
  • It is designed with 800-fill down insulation
Cons
  • The center zipper should be longer
  • No side zippers for ventilation

Lamina Z Flame

Lamina Z Flame
Truthfully, for what it is, the Lamina Z Flame Sleeping Bag does everything right. However, if you live in northern areas that experience brutally cold nights, you may find it difficult for this to keep you warm.
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Insulation and Warmth

With Thermal.Q insulation and an excellent loft that will continue to insulate even when it becomes damp, this secures a temperature rating of 22 degrees Fahrenheit. While not as great as others, it can still provide warmth in below-freezing temperatures.

Zipper Design

There is a full-length zipper with double sliders that not only provides an easy entry point but also ample ventilation.

Comfort

Besides the fabric being naturally comfortable, the footbox and overall construction allow you an ease of movement and do not restrict your body.

Portability

So you do not have to worry about transport, this bag is easily compressed and can be stuffed inside the included compressions stuff sack.

Sizing

Again, you have multiple sizing options so if you happen to be taller or larger than others, you can select the size that adapts to you best.

Overall

It is hard to harp on what Mountain Hardwear has delivered with their Lamina Z Flame. For those looking for a 0-degree temperature rating, this is not the best choice but do not think for one second that on most nights this will not keep you warm.
Pros
  • The welded Lamina construction eliminates cold spots
  • Features a natural footbox
  • The soft polyester lining wicks away moisture
Cons
  • The zipper gets caught easily on the fabric
  • Could have a lower temperature rating

Criteria Used For The Evaluation

The Insulation and Temperature Rating

It should not surprise you that when breaking down the best cold weather sleeping bags, the first criterion (and probably most important) alludes to the insulation and warmth that they provide. For insulation, you typically either see down or synthetic. Synthetic insulation actually mimics the properties of down but retains them while wet. Of course, even though down does not insulate when it is wet, this is why it is treated with a repellent to resist moisture and dampness. As far as how to judge the performance of the insulation, the higher the fill the more insulating ability the down (which comes from either goose or duck) has.

Also, besides the basic insulation, the sleeping bag needs to be able to retain the heat and prevent it from escaping. This can be achieved with the type of thread, interlocking draft tubes and also a full draft collar. At the end of the day, though, temperature rating may be the most important factor of all. This rating is to inform you of how cold the climate can be outdoors until the sleeping bag will stop keeping you warm. Clearly, the lower the better.

The Location and Design of the Zipper/Zippers

The manner in which sleeping bags are designed makes the zipper location, and overall design, critically important. This is because they cocoon you inside of them. If you have full-length, or even ¾-length, zippers on the side it can make the entry and the exit significantly easier. The same can be said about the center zipper, if there is one, as the size of the opening can aid in the simplicity of access. But, side and center zippers also provide more conveniences, such as the ventilation. Just because you intend on using a sleeping bag in cold weather, does not mean you will not overheat from time to time. In these situations, it is nice to be able to zip the side of the bag open for breathability. As a side note, a lot of sellers give you the option for the zipper to be located on either the right or left side of the bag.

Unfortunately, snagging can be a real issue when it comes to zippers. While it is hard to avoid it all the time, look out for design integrations that lend a helping hand (such as anti-snag webbing tape).

How Comfortable the Sleeping Bag Is

Warmth and comfort truly do go hand-in-hand. However, because of how important warmth and insulation are, noteworthy comfort features would have been lost in the shuffle if they were included in that specific section. Thus, it deserves its own special recognition. When analyzing pure comfort, ignoring warmth for a second, it really comes down to the feel of the fabric and the form of the sleeping bag.

For example, fabrics such as nylon and polyester are soft to the skin and feel terrific. You may treasure a specific type of material over another, especially with your clothing. But, the form also comes into play. Most specifically with the footbox. In order to ensure your feet, have plenty of breathing room, you will want either a natural or trapezoidal footbox. Of course, you may prefer sleeping with extra-layering and if you do, pay attention to how wide the shoulder girth is as the wider it is the more clothes you can layer.

The Simplicity of Transporting It

It is not a bad assumption to assume that you plan on traveling with your sleeping bag. Granted, you could strictly use it for backyard camping or around the home. However, most will use it for activities such as backpacking, camping, hiking, etc. Thus, it must be transported to those locations. Now, depending on what you are doing, you may either have a short or long distance to travel with the sleeping bag. If long, then the simplicity of transporting it becomes vitally important.

No matter what, as you were witnessed to in this guide, typically, manufacturers will provide you with either a compression sack, stuff sack, or dry bag to carry around the sleeping bag. But, the weight and bulkiness of the bag can either make it a huge hassle to get inside or a piece of cake. If overly bulky or heavy, it can fit awkwardly in your backpack making for an uncomfortable experience. Also, if you prefer carrying as little weight as possible to ease the stress of your back, you do not want a sleeping bag that is over 10 pounds.

If the Sleeping Bag Will Properly Fit You

Sleeping bags are not fitted to be universal; though, they are designed to fit as many people as possible. This is where tall and larger folks hold a disadvantage. If you already know, for a fact, that you are too short to ever concern yourself with not fitting inside a sleeping bag, then length typically will not concern you. Given that most sleeping bags that made their way onto this list had a regular sized version of up to 72 inches in length (which works out to 6-foot), if you are under six-feet then length should be out of the question. Past length, measurements such as the hip girth and shoulder width are important as well. If you have any concerns, simply compare the dimensions of the regular and long versions.

One last point, if you are looking to sleep more than one person in one sleeping bag, there are some bags that are designed to be double-wide and sleep two.

FAQs

Q:   How to Store a Sleeping Bag?

Clearly, you are not going to use your sleeping bag 24/7. As such, it is important to understand that some care needs to be taken when storing it away. What was not previously addressed about down insulation is that the more it is compressed, the more loft it loses. If you leave it stored in a tight compression sack for too long, it could compromise the effectiveness of the sleeping bag. An alternative to a small compression sack is to store it in a large and breathable storage bag.

But, if the manufacturer does not provide this to you or you do not have the means to get one, then simply store it in a spread-out position in a cool and dry location. For example, you could spread it out under your bed or even hang it up in your bedroom. Also, be sure to fluff the sleeping bag right before you store it.

Q:   How Do You Machine Wash a Sleeping Bag?

First of all, you should only wash your sleeping bag when it really needs it. Do not think that it is necessary to wash it after every use (maybe only once per year). Thankfully, you can machine wash a sleeping bag. However, due to their immense size, you may not be able to do so with your current washing machine. If you know for a fact that you need a larger machine, head over to the nearest laundry mat and use their front-loading washer. From here, you really do not need any special solvents or detergent to properly clean and wash them.

But, before you toss it into the washer, ensure that you unzip the bag and place the sliders halfway-up. Once this is done, you can throw it in the machine and wash it on a gentle cycle with warm water and a mild detergent.

Q:   How Do You Hand Wash a Sleeping Bag?

Let’s face it, not all of you have access to a laundry mat or the desire to use one. If this so happens to be the case, you can clean a sleeping bag the old-fashioned way. For starters, you still want to ensure that you have a large area to wash the bag in (say a bathtub which will be used in this example). Fill your bathtub with lukewarm water and add as much soap or detergent as you deem necessary or that the manufacturer recommends (avoid a lot as you do need to rinse it out later).

From there, simply lay the sleeping bag in the sudsy water and begin to saturate every section of the bag. Allow the bag to sit in the water for approximately one hour and after that, you will need to drain the tub and refill it with plain water. Now, repeat the process except now you want to rid the bag of the excess soap. You may have to drain and rinse a few times, so this can end up being both time-consuming and annoying.

Q:   What is the Best Way to Carry a Sleeping Bag When Backpacking?

Some of you may be planning on bringing your brand-new sleeping bag on your next backpacking adventure. To do this, you will ideally want to include it either on or in your backpack. The question is, what is the best way to do so? Truthfully, it depends on the design of the backpack that you currently have. If it is crafted with an internal frame, it will be easier to stuff it inside. For a short time, compressing the down insulated sleeping bag will not affect it. Plus, as you will not need the bag until you sleep for the night, you want to pack it on the bottom as tightly as it can go.

However, if you have an external frame backpack, stuff it in the included sack and strap it to the bottom section of the backpack.

Q:   How Do You Dry a Sleeping Bag?

So, you should now have your wits about you the next time you wash a sleeping bag? But, what do you do when the washing process has concluded? No doubt, the easiest way is to place it in a drying machine. Though, great care needs to be taken to ensure you do not damage the fabric. When a sleeping bag becomes drenched, it is more prone to abrasions. As such, you need to carefully and gently place it inside of a large dryer.

If need be, you may have to go to a laundry mat (if not already there) for a large enough dryer. For a point of reference, if you can freely crawl into the dryer then it is suitable enough. Be warned, the drying process takes a while as you want to dry it on the coolest setting possible as heat can clump the insulation.

Q:   How Do You Fold a Sleeping Bag?

Probably the simplest question that constantly gets asked in reference to sleeping bags is how to fold them. Even if they come with compression sacks, you still are responsible for condensing the size so they will adequately fit in the sack. To do so, make sure that all the zippers are fully-zipped and fold it in half length-wise. Now, starting at the open end of the bag, begin to tightly roll up the bag to the best of your capability. As you go, be sure to release as much air as possible as you literally want it as tight as humanly possible. Once you feel it is rolled up tightly enough, use the straps to secure it and place it in the stuff sack.

Final Thoughts

Sleeping bags are a terrific commodity but do not sell yourself short because you did not want to put forth some effort to find the best one. To be honest, most of the work is already done for you. Now, you just have to make a selection.