Best Sub Zero Degree Single Sleeping Bags for 2019


Our review process

Our team has gathered, researched, and analyzed information on over 800 various kinds of sleeping bags in order to recommend our top scoring sleeping bags today. We then further sub-categorized them and looked more specifically at 12 different sub zero degree single sleeping bags. In our research, we took into consideration a large variety of different key features among the 28,000 different data parameters and combined it with customer reviews to inform you of the finest sub zero degree single sleeping bags available on the market. But don't just take our word for it, check out some of the advantages and disadvantages of some of the main specs.

Before choosing your next sub zero degree single sleeping bag, there are some things we think you should know about. Sub-zero degree sleeping bags are tight fitting, reducing the amount of space your body has to work to heat up. They have advanced technology like Thermotech insulation, sealing in warmth even on the most frigid nights. These sleeping bags are ideal for winter camping, so they make it really easy for a person to stay comfortable in freezing temperatures. They feature an easy access design, so you don't have to struggle with the zipper while staying out in the cold. Sub-zero degree sleeping bags feature a tight fitted hood design, so your neck and head will be enveloped in warmth. They dry quickly, so moisture will not soak the fabric, maximizing thermal efficiency even when wet. However, they are generally expensive, so unless you're planning on sleeping out in the most extreme weather, they might not be worth your purchase. They provide a compact packing solution, making them easy to roll up and throw in your bag. Single sleeping bags have enough space for one, which provides excellent insulation to the sleeper inside. They weigh less than double sleeping bags, so you can take on tough trails more comfortably than with larger size bags.

Our Top Ranking Sleeping Bags:
Product NameBrandWeightShapeColor
Best Overall Score
1
An image of Western Mountaineering Lynx Gore Windstopper Sub Zero Degree Down Sleeping Bag
Western Mountaineering Lynx Gore Windstopper Sub Zero Degree Down Sleeping Bag
Western Mountaineering
3.8
mummy
sage
Runner Up
2
An image of Western Mountaineering Sub Zero Degree Sleeping Bag
Western Mountaineering Sub Zero Degree Sleeping Bag
Western Mountaineering
3.5
mummy
royal blue
For Backpacking
3
An image of Slumberjack Country Squire 51731412LR Sub Zero Degree Poly Cotton Sleeping Bag
Slumberjack Country Squire 51731412LR Sub Zero Degree Poly Cotton Sleeping Bag
Slumberjack
13
rectangle
For Cold Weather
4
An image of Slumberjack Wheeler Lake Men's Sub Zero Degree Sleeping Bag
Slumberjack Wheeler Lake Men's Sub Zero Degree Sleeping Bag
Slumberjack
rectangle
brown
5
An image of Western Mountaineering Puma Sub Zero Degree Sleeping Bag
Western Mountaineering Puma Sub Zero Degree Sleeping Bag
Western Mountaineering
6.1
mummy
royal blue
Our Top Ranking Sleeping Bags
Customer Rating
Brand
Western Mountaineering
Weight
3.8
Shape
mummy
Color
sage
Customer Rating
Brand
Western Mountaineering
Weight
3.5
Shape
mummy
Color
royal blue
Customer Rating
Brand
Slumberjack
Weight
13
Shape
rectangle
Color
Customer Rating
Brand
Slumberjack
Weight
Shape
rectangle
Color
brown
Customer Rating
Brand
Western Mountaineering
Weight
6.1
Shape
mummy
Color
royal blue
Best Overall Score
An image of Western Mountaineering Lynx Gore Windstopper Sub Zero Degree Down Sleeping Bag

Let's review the Western Mountaineering Lynx Gore Windstopper Sub Zero Degree Down Mummy Sleeping Bag, rated highly by online shoppers. This Western Mountaineering sleeping bag is lightweight, making it great if your number one priority is low volume and weight. It features a down lining, lasting for many years with the proper upkeep. Featuring a mummy shape, it is made for optimal warmth-to-weight ratio, since it is fitted so there isn't excess fabric, reducing the weight and making it easier to carry on your back. This Western Mountaineering sleeping bag is made to be compact and has a compressible design, leaving you enough extra space to take along your other essentials. Withstanding sub-zero degree temperatures, it can prevent any cold drafts from keeping you up at night. It uses Gore Windstopper™ fabric, so you will stay warm in windy conditions as this sleeping bag is wind-resistant.

    Pros
    • Folds up compactly
    • Features a compressible design
    • Lightweight construction
    Cons
    • Down needs special cleaning care
    • Mummy shape limits different sleeping positions
Runner Up
An image of Western Mountaineering Sub Zero Degree Sleeping Bag

Use the Western Mountaineering Sub Zero Degree Mummy Sleeping Bag to stay warm and cozy in the outdoors. Featuring a mummy shape, this sleeping bag is fitted to prevent warm air from escaping. It can withstand sub-zero degree temperatures and is waterproof, making it a good choice for wet environments. This sleeping bag features Microlite XP™ microfiber, which is highly breathable, easy-to-carry, and resistant to water, with a thread count of over 400 threads per square inch.

    Pros
    • Mummy shape is great for backpacking
    • Intended for one sleeper, making it an excellent space-saving choice
    • Microlite XP™ microfiber, which is water-resistant
    Cons
    • Mummy shape is very fitted with no extra room to move around
For Backpacking
An image of Slumberjack Country Squire 51731412LR Sub Zero Degree Poly Cotton Sleeping Bag

Let's review the Slumberjack Country Squire Sub Zero Degree Poly Cotton Rectangular Sleeping Bag, rated highly by online shoppers. This sleeping bag works well for backpacking trips, so if weight is your priority this could be a great option. It has a rectangular shape, which is non-tapered, allowing you to comfortably move around in your sleep. It features a poly cotton lining, which is highly durable and does not tear easily, making it compatible for rougher conditions, and a cotton exterior, which will take a lot of time to dry. This Slumberjack sleeping bag is washable, so you can clean it to ensure your bag stays in the best condition. Great for winter, it can withstand harsh temperatures and still keep you warm. It has a sub-zero degree temperature rating, so cold drafts won't make it past the collar of the sleeping bag.

    Pros
    • Washable
    • Poly cotton lining is very durable, and fast-drying
    • Cotton shell doesn't absorb heat
    Cons
    • Poly cotton is not good for warm temperatures
    • Rectangular shape is not the warmest option
    • Cotton shell is hard to carry
For Cold Weather
An image of Slumberjack Wheeler Lake Men's Sub Zero Degree Sleeping Bag

Get a good night's sleep while using the Slumberjack Wheeler Lake Men's Sub Zero Degree Rectangular Sleeping Bag. This Slumberjack sleeping bag has a rectangular shape, so you will have plenty of room to move around. Perfect for hunting, it will keep you insulated on overnight trips when the temperature drops. It has a zipper guard, preventing the fabric from snagging in the zipper. With a sub-zero degree temperature rating, it can seal in warmth for sleeping out in the extreme cold.

    Pros
    • Zipper guard prevents the fabric from ripping
    • Rectangular shape is built with extra space
    • Intended for one sleeper, making it an excellent space-saving option
    Cons
    • Rectangular shape is not very insulated
Additional Picks
An image of Western Mountaineering Puma Sub Zero Degree Sleeping Bag

You'll want to discover more about the Western Mountaineering Puma Sub Zero Degree Mummy Sleeping Bag to discover what sets it apart from all the other sleeping bags on the market. This sleeping bag has a mummy shape, which is larger on top and more fitted by the feet, keeping warm air closer to you. It has weather-resistant technology, which will protect against moisture build up during both hot and cold temperatures. Withstanding sub-zero degree temperatures, it can seal in warmth even on the most frigid nights. With a compressible design, this sleeping bag will fold up compactly, leaving you ample room for all your other equipment. Its hood has drawstrings, so you can adjust the fit based on the temperature outside. This sleeping bag features Gore Windstopper™ fabric, which protects you from all windy conditions by utilizing a porous membrane that keeps you warm.

    Pros
    • Features a compressible design
    • Drawstring hood provides extra comfort by the head
    • Mummy shape is suitable for hiking
    Cons
    • Mummy shape is close fitting with no extra space to move
An image of Western Mountaineering Bison GWS Sub Zero Degree Sleeping Bag

With the Western Mountaineering Bison GWS Sub Zero Degree Mummy Sleeping Bag, you can experience a great night's sleep while on your weekend away. Featuring a mummy shape, this Western Mountaineering sleeping bag is fitted to prevent cold air pockets. It is lightweight, so you can take it on every trip you embark on without feeling weighed down. This sleeping bag features Gore Windstopper™ fabric, which shields you from all windy conditions by using a windproof membrane that keeps you warm. Featuring a compressible design, it packs easily into a backpack or overnight bag. Withstanding sub-zero degree temperatures, this sleeping bag can seal in warmth even on the most frigid nights.

    Pros
    • Compresses easily
    • Lightweight build
    • Mummy shape has great insulation
    Cons
    • Mummy shape is very fitted with no extra room to move
An image of Western Mountaineering Lynx MF Men's Sub Zero Degree Down Sleeping Bag

With a great user rating, the Western Mountaineering Lynx MF Men's Sub Zero Degree Down Mummy Sleeping Bag could be exactly what you need for your next trip. This sleeping bag has a mummy shape, which is wider on top and more tapered on the bottom, keeping warm air closer to you. Withstanding sub-zero degree temperatures, it is thermally efficient, providing you with the maximum amount of insulated space. It has a down lining, which is filled with authentic down and can combat extreme temperatures. Good for winter weather, it can withstand harsh temperatures and still keep you insulated. With a lightweight build, this Western Mountaineering sleeping bag won't be difficult to carry.

    Pros
    • Lightweight build
    • Down lining will add excellent insulation, standing up to colder temperatures
    • Can withstand cold winter weather
    Cons
    • Down requires special cleaning care
    • Mummy shape limits different sleeping positions
An image of Coleman Big Game 2000030093 Men's Sub Zero Degree Flannel Sleeping Bag

Sleep comfortably while using the Coleman Big Game Men's Sub Zero Degree Flannel Rectangular Sleeping Bag. This sleeping bag has a rectangular shape, which is ideal for those who like room to stretch out. Withstanding sub-zero degree temperatures, it is thermally efficient, providing you with the maximum amount of insulated space. It uses Thermolock technology, reducing heat loss through the opening since it has an extra layer of insulation along the zipper. This sleeping bag features a flannel lining, which is ideal for colder climates as it keeps in your body heat.

This Coleman sleeping bag detaches via zippers and has a zipper guard, preventing the fabric from snagging in the zipper. It includes an exterior pocket, so you can store your important items, such as your watch. This sleeping bag features a plush bottom, so you won't feel the hard ground beneath you. With a lightweight build, it won't be difficult to carry long distances. It comes with a pillow, which will provide comfortable neck and head support throughout the night. This sleeping bag is easy to pack, making it an excellent option if mobility and space are your main concern.

    Pros
    • Features a plush bottom
    • Easy to pack sleeping bags roll up compactly
    • Zipper guard keeps the fabric from catching
    Cons
    • Flannel is not suitable for warm sleepers
    • Rectangular shape is not very insulated
An image of Marmot CWM MemBrain Sub Zero Degree Down Sleeping Bag

With the Marmot CWM MemBrain Sub Zero Degree Down Mummy Sleeping Bag, you can experience an incredible night's sleep while on your trip. This sleeping bag has a mummy shape, which is larger on top and more tapered on the bottom, keeping warm air closer to you. It has a pertex shell and a down lining, which adds great insulation, making it ideal for colder weather. It is waterproof and can withstand sub-zero degree temperatures, ensuring a well-insulated space that allows you to create a warm microclimate with your body heat. This sleeping bag is equipped with a zipper guard, keeping the fabric from getting caught when opening and closing the zipper. It features zippers on each side for convenient access. It has a stuff sack, designed for conveniently fitting your sleeping bag into your backpack along with the rest of your gear. Its hood has drawstrings, which allows you to adjust the tightness depending on the weather and your own preference.

    Pros
    • Zipper guard keeps the fabric from tearing
    • Drawstring hood gives added cushion by the head
    • Stuff sack stores sleeping bags easily
    Cons
    • Down needs special cleaning
    • Mummy shape doesn't have extra space to move around
    • Stuff sack can ruin the sleeping bag's filling after prolonged use
An image of Browning Refuge 4870036 Men's Sub Zero Degree Polyester Sleeping Bag

With the Browning Refuge Men's Sub Zero Degree Polyester Mummy Sleeping Bag, you can experience an incredible night's sleep while on your trip. This Browning sleeping bag is designed with a polyester lining and it is made with a nylon ripstop exterior, resisting wear and tear. It has a mummy shape, which is larger on top and more fitted on the bottom, keeping warm air inside the sleeping bag. With a compressible design, it does not take up all the space in your bag so you will have enough room to bring along other equipment. Perfect for camping, this Browning sleeping bag gives you insulation to comfortably sleep outdoors after the temperatures drop at night. It has TechLoft Gold insulation, which will retain warmth by using synthetic insulation. This Browning sleeping bag features a stuff sack, which will keep your backpack organized. It can withstand sub-zero degree temperatures, providing an extreme layer of insulation between you and the cold outside.

    Pros
    • Features a compressible design
    • Stuff sack stores sleeping bags easily
    • Polyester lining is durable and vibrant
    Cons
    • Polyester traps moisture inside the sleeping bag
    • Mummy shape has a tailored fit which can be too cramped for some
    • Camping sleeping bags are not suitable for backpacking
Buying a New Sub Zero Degree Single Sleeping Bag? Here Are Some Things to Know:
Which Shape Best Suits Your Sub Zero Degree Single Sleeping Bag
Rectangular Sleeping Bags

Are you looking to buy a new sleeping bag that will have lots of room? We have eight rectangle sleeping bags available. Click here to have a look at one now. Rectangular sleeping bags have a super spacious design, allowing you to stretch out with a generous amount of space. They come with double zippers, which allow you to turn the bag into a flat blanket, for warmer nights. These sleeping bags accommodate varying sleeping positions, so if you move around a lot at night, you'll have the space and freedom to sleep in any position you choose. One downside is that they are quite heavy, so they are less convenient for when weight is the top priority. On top of that, they are not very heat-efficient, creating extra space inside which can weaken the bag's ability to keep you warm.

Mummy Sleeping Bags

Deciding on the ideal mummy sleeping bag for your next outdoor adventure? We'll help you make up your mind by providing you with the facts. Mummy sleeping bags weigh less than rectangular bags, so they are best when you need maximum warmth for minimal weight. Ideal for cold weather, they create a snug and tight fit that helps seal in warmth. A potential downside is that they provide less space to move around, making them uncomfortable for sleepers who toss and turn. Think you know which shape is perfect for you? Then why not start with this great option.

Pros and Cons of Different Liner Materials for Sub Zero Degree Single Sleeping Bags
Polyester Sleeping Bags

We looked at three awesome sub zero degree single sleeping bags that have a polyester liner to help you decide if this is the right material you want. These sleeping bags are designed to be hypoallergenic, so they are ideal for allergy sufferers. They are easy to clean, so you can keep them in great shape with just soap and water. With great breathability, they won't stick to your skin or leave you feeling overheated on warmer nights. Polyester sleeping bags are extremely durable, so they will not unravel or tear after a lot of use. They dry quickly, reducing the overall amount of water trapped and absorbed by the material. Now that you know a bit more about polyester, choose the perfect one for you here.

Flannel Sleeping Bags

Looking for a long-lasting sleeping bag? A sleeping bag with a flannel liner may be the perfect solution. To help you in your decision, we recommend one of the great sub zero degree single sleeping bags that come with a flannel liner. These sleeping bags are designed for warmth, so cold temperatures won't keep you from an epic outdoor adventure. They are very soft, so you don't have to suffer sleeping in the outdoors. Flannel sleeping bags are easy to clean, so they can go many years before needing a complete wash. They are moisture wicking, keeping you dry on humid nights. Feel ready to pick out the right sub zero degree single sleeping bag for you? Get started here.

Poly Cotton Sleeping Bags

There is only one sub zero degree single sleeping bag that has a poly cotton liner. Poly cotton sleeping bags are easy to clean, so they can last a long time before needing a complete wash. Made with breathable material, they won't stick to your skin or leave you feeling overheated on warmer nights. They are designed with durable materials, so they will remain in excellent shape over time. Poly cotton sleeping bags dry quickly, so even in the wettest conditions, they hardly absorb any moisture. Now that you're more familiar with poly cotton, take a look here.