Best Sub Zero Degree Rectangular Sleeping Bags


Our review process

Our team has gathered, researched, and analyzed information on over 800 various types of sleeping bags in order to recommend our top rated sleeping bags on the market. We then further sub-categorized them and looked more specifically at 4 different sub zero degree rectangular sleeping bags. In our research, we took into consideration a large variety of different key features among the 28,000 different data points and combined it with customer reviews to inform you of the leading sub zero degree rectangular sleeping bags available today. But don't just take our word for it, check out some of the benefits and disadvantages of some of the main specs.

This article will help you find the perfect sub zero degree rectangular sleeping bag for your next adventure outdoors. Sub-zero degree sleeping bags feature an easy access design, so you can quickly get out of the cold, and into the warmth inside. They are ideal for winter camping, so they make it really easy for a person to stay comfortable in freezing temperatures. These sleeping bags come with 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. With advanced technology like Thermotech insulation, they are engineered to keep you safe in the most extreme cold. They feature a quick-drying technology, 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 cheaper one.

These sleeping bags have a super spacious design, making them great for people who feel too confined by the tight mummy shape. They have double zippers, making them very versatile, doubling as a blanket or attaching to another sleeping bag for combined body heat on extra cold nights. Rectangular sleeping bags accommodate varying sleeping positions, making them ideal for people who are particular about sleeping in certain positions such as their sides or stomach. However, they are not very heat-efficient, creating more room inside which can weaken the bag's ability to keep you warm. Another drawback is that they are quite heavy, so they aren't good for when weight is the top priority.

Our Top Ranking Sleeping Bags:
Product NameBrandWeightLiner MaterialSize
Best Overall Score
1
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
poly cotton
single
Runner Up
2
An image of Coleman Big Game 2000030093 Men's Sub Zero Degree Flannel Sleeping Bag
Coleman Big Game 2000030093 Men's Sub Zero Degree Flannel Sleeping Bag
Coleman
2.2
flannel
single
For Cold Weather
3
An image of Slumberjack Wheeler Lake Men's Sub Zero Degree Sleeping Bag
Slumberjack Wheeler Lake Men's Sub Zero Degree Sleeping Bag
Slumberjack
single
4
An image of Browning Klondike 4893977 Sub Zero Degree Flannel Sleeping Bag
Browning Klondike 4893977 Sub Zero Degree Flannel Sleeping Bag
Browning
17.2
flannel
single
Our Top Ranking Sleeping Bags
Customer Rating
Brand
Slumberjack
Weight
13
Liner Material
poly cotton
Size
single
Customer Rating
Brand
Coleman
Weight
2.2
Liner Material
flannel
Size
single
Customer Rating
Brand
Slumberjack
Weight
Liner Material
Size
single
Customer Rating
Brand
Browning
Weight
17.2
Liner Material
flannel
Size
single
Best Overall Score
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, a popular choice among consumers. This Slumberjack sleeping bag has a rectangular shape, which is built with extra space, so you can move around comfortably in your sleep. It has a cotton exterior, which is light, comfortable, and doesn't heat up as much as other fabrics, and a poly cotton lining, which is highly durable and tear-resistant, making it suitable for rougher conditions. It can be washed, so you can clean it to ensure your bag stays in the best condition. Great for winter, it will protect you from extreme temperatures. Perfect for hiking, this Slumberjack sleeping bag won't weigh you down while you're taking on the outdoors. With a sub-zero degree temperature rating, it can seal in warmth for sleeping out in the extreme cold.

    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
Runner Up
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 provides comfortable neck and head support throughout the night, while still being small enough to easily pack up along with your sleeping bag. This Coleman 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
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, preventing the material from getting caught when opening and closing 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
Additional Picks
An image of Browning Klondike 4893977 Sub Zero Degree Flannel Sleeping Bag

With the Browning Klondike Sub Zero Degree Flannel Rectangular Sleeping Bag, you can experience an incredible night's sleep while on your trip. This Browning sleeping bag features a flannel lining, which combines wool and other synthetic fibers, making it very warm and gentle on your skin. It has a rectangular shape, which is non-tapered, allowing you freedom of movement in your sleep. Featuring a compact design, it reduces the total volume your bag takes up in your pack. It has Techloft silver insulation, so you will have increased insulation and warmth because of tiny, silicone-coated, micro-denier fibers. This Browning sleeping bag works well for camping trips, offering cozy warmth and good compressibility. It is easy to carry, designed for convenient storage and transport. Withstanding sub-zero degree temperatures, it can prevent any cold drafts from keeping you up at night.

    Pros
    • Designed to be compact, getting rid of the bulk
    • Flannel lining keeps in warmth
    • Rectangular shape is built with extra space
    Cons
    • Flannel is not good for warm sleepers
    • Rectangular shape is heavier than other shapes
    • Camping sleeping bags are not suitable for hiking
How to Pick Out Your New Sub Zero Degree Rectangular Sleeping Bag: Additional Factors to Keep In Mind:
What Types of Liner Materials Are Available for Sub Zero Degree Rectangular Sleeping Bags?
Flannel Sleeping Bags

Are flannel sleeping bags the best fit for you? Take a look at this particular sub zero degree rectangular sleeping bag with a flannel liner that we picked out for you. Flannel sleeping bags are easy to clean, so they can go many years before needing a complete wash. They are very soft, ensuring your child sleeps soundly after a long day adventuring in the outdoors. Designed for warmth, they will keep you snug and cozy. Flannel sleeping bags are moisture wicking, allowing you a better night's sleep in more humid conditions.

Poly Cotton Sleeping Bags

There is only one sub zero degree rectangular sleeping bag that has a poly cotton liner. With great breathability, poly cotton sleeping bags won't stick to your skin and make you feel overheated on warmer nights. They are extremely durable, so they can stand up to long-term use without fraying or falling part. These poly cotton sleeping bags are easy to clean, so they can last a long time before needing a complete wash. They dry quickly, reducing the overall amount of moisture trapped and absorbed by the material. Now that you know more about poly cotton, take a look here.