Best Sub Zero Degree Sleeping Bags for 2019


Our review process

We've taken a look at more than 800 sleeping bags, including plenty of different sub zero degree sleeping bags. We used our leading artificial intelligence technology to score each individual sleeping bag based on a number of data points. These features range from liner material and number of seasons to cleaning options and designs. The following guide will talk about sub zero degree sleeping bags in particular, of which we found 13. We hope that this article will help you in your pick.

This article will highlight the key characteristics you should consider when looking to buy a sub zero degree sleeping bag. These sleeping bags are tight fitting, reducing the amount of space your body has to work to heat up. Featuring advanced technology like Thermotech insulation, they are engineered to provide an extreme layer of insulation between you and the cold outside. They are ideal for winter camping, so they make it really easy for a person to stay comfortable in freezing temperatures. Sub-zero degree sleeping bags feature an easy access design, so you don't have to struggle with the zipper while staying out in the cold. They have a tight fitted hood design, which works well to seal in heat but doesn't allow for a lot of movement of the head and neck. Sub-zero degree sleeping bags dry quickly, so they are engineered to keep you warm even in the wettest conditions. However, they are generally expensive, so if you won't be using the bag that often, you might want to consider getting a more affordable one.

Our Top Ranking Sleeping Bags:
Product NameBrandWeightShapeColorSize
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
single
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
single
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
single
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
single
Best Affordable Option
5
An image of Snugpak Basecamp OPS Sub Zero Degree Polyester Sleeping Bag
Snugpak Basecamp OPS Sub Zero Degree Polyester Sleeping Bag
Snugpak
5.75
mummy
olive
Our Top Ranking Sleeping Bags
Customer Rating
Brand
Western Mountaineering
Weight
3.8
Shape
mummy
Color
sage
Size
single
Customer Rating
Brand
Western Mountaineering
Weight
3.5
Shape
mummy
Color
royal blue
Size
single
Customer Rating
Brand
Slumberjack
Weight
13
Shape
rectangle
Color
Size
single
Customer Rating
Brand
Slumberjack
Weight
Shape
rectangle
Color
brown
Size
single
Customer Rating
Brand
Snugpak
Weight
5.75
Shape
mummy
Color
olive
Size
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

With a high user rating, the Western Mountaineering Sub Zero Degree Mummy Sleeping Bag could be just what you need for your next outdoor adventure. This sleeping bag has a mummy shape, which is wider on top and more tapered on the bottom, keeping warm air closer to you. It has Microlite XP™ microfiber, which is very breathable, easy-to-carry, and resistant to water, with a thread count of over 400 threads per square inch. It is waterproof and can withstand sub-zero degree temperatures, providing an extreme layer of insulation between you and the cold outside.

    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

With the Slumberjack Country Squire Sub Zero Degree Poly Cotton Rectangular Sleeping Bag, you can experience an incredible night's sleep while on your outdoor adventure. This Slumberjack sleeping bag has a rectangular shape, allowing you to comfortably sleep on your side, back, or stomach without feeling restricted. It features a poly cotton lining and has a cotton shell, so you will not overheat, as it's very strong, highly porous, and doesn't absorb sunlight. Withstanding sub-zero degree temperatures, this Slumberjack sleeping bag can seal in warmth even on the most frigid nights. Ideal for winter, it can withstand harsh weather and still keep you warm. It is designed for backpacking, so it is compact and easy to fit in your bag, making it comfortable to carry no matter the hiking trail. This Slumberjack sleeping bag is washable, so you can clean it to make sure your bag stays in the best condition.

    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

If you're looking for a new sleeping bag, you will want to consider the Slumberjack Wheeler Lake Men's Sub Zero Degree Rectangular Sleeping Bag. This sleeping bag has a rectangular shape, which is great for those who like a bit of extra room. It can withstand sub-zero degree temperatures, so cold air won't make it past the collar of the sleeping bag. Perfect for hunting, it will keep you insulated on overnight trips when it gets cold in the woods. It features a zipper guard, keeping the fabric from getting caught in the zipper.

    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
Best Affordable Option
An image of Snugpak Basecamp OPS Sub Zero Degree Polyester Sleeping Bag

Sleep comfortably with the Snugpak Basecamp OPS Sub Zero Degree Polyester Mummy Sleeping Bag. Featuring a mummy shape, this Snugpak sleeping bag is fitted to prevent cold air pockets. It has a polyester shell, which will resist UV light, protecting you from damaging sunlight, and a polyester lining, which is a synthetic fabric that is very strong and colorfast. Withstanding sub-zero degree temperatures, it can prevent any icy drafts from keeping you up at night. This sleeping bag features a compression bag, which will make packing up your bag very easy.

    Pros
    • Polyester lining is strong and vibrant
    • Polyester exterior is durable and colorfast
    • Mummy shape has excellent insulation
    Cons
    • Polyester stains frequently
    • Mummy shape is very fitted with no extra room to move
    • Polyester shell is not so durable
Additional Picks
An image of Western Mountaineering Puma Sub Zero Degree Sleeping Bag

Sleep comfortably while using the Western Mountaineering Puma Sub Zero Degree Mummy Sleeping Bag. Featuring a mummy shape, this Western Mountaineering sleeping bag is tight fitting to prevent warm air from escaping. It has weather-resistant technology, which will protect against moisture build up during both hot and cold temperatures. This Western Mountaineering sleeping bag features Gore Windstopper™ fabric, which shields you from all windy conditions by using a porous membrane that protects your body warmth. With a compressible design, it will fold up compactly, leaving you ample room for all your other essentials. Withstanding sub-zero degree temperatures, it is thermally efficient, providing you with the maximum amount of insulated space. The hood has drawstrings, so you can adjust the fit based on what feels most comfortable to you.

    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 being weighed down. This Western Mountaineering sleeping bag uses Gore Windstopper™ fabric, so you will stay warm in windy conditions as this sleeping bag is wind-resistant. Featuring a compressible design, it packs easily into a backpack or overnight bag. It can withstand sub-zero degree temperatures, sealing in heat by maximizing insulation.

    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 the Western Mountaineering Lynx MF Men's Sub Zero Degree Down Mummy Sleeping Bag, you can experience a great night's sleep while on your outdoor adventure. This Western Mountaineering sleeping bag has a mummy shape, sealing in your body heat since it is very fitted. It features a down lining, which is filled with waterfowl down and can combat harsher weather conditions. Great for winter, it can withstand harsh weather and continue to keep you warm and comfortable. Featuring a lightweight build, it is great if you want to save space and move fast,. Withstanding sub-zero degree temperatures, this Western Mountaineering sleeping bag can seal in warmth even on the most frigid nights.

    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 great 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

Use the Marmot CWM MemBrain Sub Zero Degree Down Mummy Sleeping Bag to stay warm and cozy in the outdoors. This sleeping bag has a mummy shape, which is larger on top and more fitted on the bottom, keeping warm air closer to you. It is waterproof and has a sub-zero degree temperature rating, so cold air won't make it past the collar of the sleeping bag. This sleeping bag is made with a pertex exterior and features a down lining, lasting for many years with the proper upkeep. The hood has drawstrings, so you can adjust the tightness based on the temperature outside. This sleeping bag is equipped with a zipper guard and unzips on each side, so you can easily get in and out. It features a stuff sack, designed for conveniently fitting your sleeping bag into your backpack along with the rest of your equipment.

    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
Buying a New Sub Zero Degree Sleeping Bag? Here Are Some Things to Know:
Which Shape Best Suits Your Sub Zero Degree Sleeping Bag
Rectangular Sleeping Bags

Looking to buy a new sleeping bag that will offer tons of room to stretch out? We have nine rectangle sleeping bags available. Click here to take a look at one now. Featuring an incredibly spacious design, rectangular sleeping bags are optimal for those who like a bit of extra room to stretch out. They feature double zippers, which allow you to turn the bag into a flat blanket, for hotter 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 suitable for when weight is a concern. Another downside is that they don't trap and heat the air around your body as well as other designs do, allowing the cool air to circulate due to their spacious design.

Mummy Sleeping Bags

Trying to decide on the most fitting mummy sleeping bag for you? We'll help you make your choice by giving you the information that you need. Mummy sleeping bags weigh less than rectangular bags, so you won't have to sacrifice warmth over weight. Ideal for cold weather, they help trap body heat. Something to consider is that they provide less space to move around, making them uncomfortable for sleepers who toss and turn. Decided on which shape is perfect for you? Then why not have a look at this great option.

Sub Zero Degree Sleeping Bags Come in Various Types of Liner Materials
Polyester Sleeping Bags

We compared three awesome sub zero degree sleeping bags that have a polyester liner to help you decide if this is the right material you want. These sleeping bags are naturally hypoallergenic, so they don't contain harmful substances that can cause discomfort for people with asthma or certain chemical sensitivities. Made with breathable material, they won't stick to your skin and leave you feeling overheated on warmer nights. They are extremely durable, so they will stay in great condition over time. These sleeping bags are easy to clean, so you can keep them in great shape with just soap and water. They dry quickly, reducing the overall amount of moisture trapped and absorbed by the material. Now that you know more about polyester, choose the right one for you here.

Flannel Sleeping Bags

Are flannel sleeping bags the right fit for you? Take a look at this particular sub zero degree sleeping bag with a flannel liner that we picked out for you. Flannel sleeping bags are easy to clean, so with just a damp cloth and a little soap you can keep them in great shape. Perfect for extra cold nights in the woods, they will keep you cozy and snug. They are very soft, so you can get a good night's sleep after a long day in the outdoors. These flannel sleeping bags are moisture wicking, keeping you dry in high humidity conditions.

Poly Cotton Sleeping Bags

There is only one sub zero degree sleeping bag that has a poly cotton liner. These sleeping bags are breathable, promoting steady airflow so you don't end up overheating. They are easy to clean, so they can last a long time before needing a complete wash. Poly cotton sleeping bags are designed with durable materials, so they will not pill or tear with extended use. They dry quickly, so when facing wet conditions, moisture will not soak the fabric. Now that you're more familiar with poly cotton, take a look here.