Top 10 Best Sub Zero Sleeping Bags Reviews Of 2022

Going on camping or adventure or trip involves packing a lot of things along with. Not just the food but you also need to make proper arrangements for sleeping. At some unknown places, you may not feel fully comfortable when sleeping. The sub zero sleeping bags become a must-have when you want to sleep comfortably and enjoy the next day of the trip with full enthusiasm. These sleeping bags prove to be must-have companions owing to their portability. Their soft surface yet durable construction ensures long-lasting usage.

Usually, they are compact and lightweight, so you can carry them in backpacks or rucksacks. Besides, they are equipped with pockets and internal pouches that can keep things accessible. Whether you travel alone or in groups, these bags are portable. It is essential to find the one depending on the temperature range in the region as well as the bag size. Make an informed buying decision with the following article on the best sub zero sleeping bags:

Bestseller Sub Zero Sleeping Bags On Site:

Bestseller No. 5
Coleman Sleeping Bag | Cold-Weather 20°F Brazos Sleeping Bag, Navy, 10" x 17.8" x 10.4"
KEEPS YOU COZY: Stay warm in temperatures as low as 20°F; LIGHTWEIGHT: Hollow polyester insulation for better heat retention with less weight

Feature to key consider for sub zero sleeping bags:

Take a look at some important points to choose the best sub zero sleeping bags:

Fill power:

The key functionality of any sub zero sleeping bag is its fill power. In simple terms, fill power measures the quality of the down. Generally, the higher the fill power, the more is the down. As a result, it creates more pockets of encased air resulting in efficient insulation. But, the high-quality loftiness does not prove effective if the volume of down is low. Therefore, along with fill power, it is important to look at the fill weight. The same suggests how much down is present within the sleeping bag.

In some of the best sub zero sleeping bags, you will find 800 fill power. It provides superior insulation and a high warmth-to-weight ratio to cancel out cold.

Weight of the bag:

The next important considerations are the weight and overall size. If you plan to enjoy a trip for multiple days then your sub zero sleeping bag would be one of the heaviest ones in the luggage. Therefore, it is essential to focus on lightweight sleeping bags with compact size. The maximum weight of these kinds of bags is up to 2.5 kg. However, some of the best quality lightweight sleeping bags in the below discussion weigh only around 10-12 lbs. The lighter the sleeping bag is, the more convenient it is to transport along.

Protection against water:

During cold or rainy weather conditions, it is important to stay protected against water and humidity. These sleeping bags are typically coated with a durable water repellent material or Nikwax treatment. However, the same does not guarantee 100% protection against water. It may prove useful when you are backpacking in absence of a tent. Many sub zero sleeping bags comprise of hydrophobic down. The down is more resistant to water damage.

You can consider buying the one made up of water-repellent nylon fabric or the one with a water-repellent cotton exterior shell.

List of 10 Best Sub Zero Sleeping Bags Review in 2022:

10. Hyke & Byke Eolus 0 Degree F Hydrophobic Goose Down Sleeping Bag:

10. Hyke & Byke Eolus 0 Degree F Hydrophobic Goose Down Sleeping Bag

The high fill power of 800 in this sleeping bag offers superb insulation. Even during extremely cold weather, you can sleep comfortably. It is crafted from decent quality, ultralight goose down filling. It is known to be an efficient insulator and comes with a high warmth-to-weight ratio. This results in a reduction in the effect of cold. Your body will stay warm due to the insulation and waterproof fabrics. In the down feathers, the microscopic air bunches are present. They trap the heat and retain warmth in your body during cold weather.

Weighing just 2.87 lbs, it feels comfortable to carry around. There is the use of ripstop nylon fabric. This fabric is water-repellent and durable. Moreover, the design shows 2 YKK zippers, drawstring, vertical stumps, and wide shoulders. You will also find a vast footbox, velcro, and sack case for storage. Available size options are short, regular, and tall.


  • Very high fill power
  • Lightweight and portable
  • Stays in place

Why We Liked It?

We like the excellent insulation it provides to keep the body warm.

9. ALPS Mountaineering Blaze -20 Degree Mummy Sleeping Bag:

9. ALPS Mountaineering Blaze -20 Degree Mummy Sleeping Bag

Retaining warmth is important during cold weather conditions. This mummy sleeping bag exactly achieves this with its high insulation. There are various aspects responsible for heat retention. They include insulated chest, zipper baffles, and large fill weight. Of these features, the first two ones remove cold spots and boost warmth. Looking at the construction, the exterior shell is made up of polyester ripstop fabric. It is also paired with an internal polyester lining. Moreover, the durable zippers perfectly seal this sleeping bag.

Irrespective of the size you choose among the 2 options, you are guaranteed warmth and comfort. The bag itself weighs 8 lbs but the fill weight is 106 oz. Because of the two-layer offset construction, mummy shape, and contoured hood, the heat retention is good.


  • Great warmth and comfort
  • Made up of durable fabric
  • Can work in extreme cold

Why We Liked It?

Even during the coldest environment, the warmth is excellent.

8. TETON Sports 101R Celsius XXL -18C/0F Sleeping Bag:

8. TETON Sports 101R Celsius XXL -18C 0F Sleeping Bag

In any rigorous outdoor conditions, this TETON Sports sleeping bag works reliably. It is extensively used for camping in cold weather. With the quality fiber filling, your body will stay warm. Moreover, the hood can fasten around your head for extra warmth. It also results in maintaining the cleanliness of the pillow.

Due to the durable shell, there will be no hassles in using this bag in rugged environments. The soft-touch feeling gives you lasting comfort while sleeping. At the top and bottom, zips are available for easy access. They contribute towards breathability. The included draft tubes and double-layer construction retain the warmth.


  • Works in all seasons
  • Enough access and ventilation
  • Made up with a durable shell

Why We Liked It?

It is built to last a lifetime and offer warmth in all seasons.

7. US Army Military ECW Winter Mummy 

7. US Army Military ECW Winter Mummy 

When extreme cold weather beats in, you can stay warm when laying on this -20F subzero sleeping bag. The temperature range it supports is +30 to -10°F. This feature denotes that the bag can work reliably during most seasons. The structure includes a mummy bag whose warmth is uncompromised no matter the surrounding weather. It is available in form of a 6-piece system. Names of accessories present are 2 booties, a drawstring hood, a storage bag with compression, and a bivy cover.


  • All necessary accessories included
  • The cover offers extra protection
  • Resists extreme cold

Why We Liked It?

We like its ability to work flawlessly across a wide temperature range.

6. Coleman 0°F Mummy Sleeping Bag:

6. Coleman 0°F Mummy Sleeping Bag

When you desire to enjoy camping at a temperature like 0°F, this Coleman sleeping bag is ideal. It is alternatively known as a cold-weather sleeping bag. What sets it apart from the rest is it can accommodate tall persons up to a height of 6 feet 2 inches. Carefully looking at the design, it shows a hood that fastens through a drawstring. As a result, the heat gets sealed inside. You can open the bottom through a zipper for extra air circulation. Especially during summer nights, it is better to unzip the bottom.

To retain the maximum heat, the bag comes in quilted construction. Also, the thermolock draft tube and insulated footbox contribute towards heat retention. The ZipPlow system turns over the fabric to avoid snagging.


  • Can accommodate a tall person
  • Excellent warmth and heat retention
  • No sagging issue

Why We Liked It?

We like that it snugly fits around the shoulders and offers maximum warmth.

5. Browning Camping McKinley -30 Degree Sub Zero Sleeping Bags :

5. Browning Camping McKinley -30 Degree Sleeping Bag

When you are looking to enrich your camping collection, consider including this sleeping bag from Browning Camping McKinley. It is designed to retain warmth even during severely cold weather. With the help of 7D TechLoft silver insulation, the warmth stays inside. So, you can sleep or lay comfortably during extreme cold. In the making of the outer shell, a durable 210T nylon ripstop fabric is used. It comes along with a polyester liner.

The zipper baffle and insulated chest entrap heat inside. Both of them remove cold spots to ensure maximum retention of heat. The total weight of the bag is 12 oz and the fill weight is 160 oz. A compression stuff backpack is included for storage. Furthermore, the foldable straps facilitate ease of transportation. This is why this -30°F sleeping bag is highly portable.


  • Durable outer shell
  • Easy to store and transport
  • Offers maximum insulation and loft

Why We Liked It?

For camping or hunting, the sleeping bag offers great portability.

4. ALPS OutdoorZ Redwood -25 Degree Flannel Sleeping Bag:

4. ALPS OutdoorZ Redwood -25 Degree Flannel Sleeping Bag

When the cold weather persists, it is inevitable to beat its effect with warmth. This flannel sleeping bag guarantees maximum loft and insulation. It comprises multiple holes and micro-denier fibers with a silicone finish. This kind of structure is responsible for maximum heat retention. Chiefly owing to the 2-layer construction, the cold spots eliminate and maximum heat will be entailed. Besides, the TechLoft insulation guarantees superb warmth that helps you to stay comfortable during chilly nights.

For extra protection, there is a cotton canvas exterior layer. The foldable straps facilitate ease of storage and transportation. The bag itself weighs 13 lbs and the fill weight is 8 lbs.


  • Maximum loft and insulation
  • Lightweight yet durable
  • Eliminates cold spots

Why We Liked It?

We like its durable construction yet it is easy to carry around.

3. Hyke & Byke Quandary 650 Fill Sub Zero Sleeping Bags :

3. Hyke & Byke Quandary 650 Fill Power Hydrophobic Down Sleeping Bag

For camping, hiking, and a wide range of outdoor activities, this hydrophobic down sleeping bag is the best. It is formerly designed for backpacking but is now widely used for various outdoor activities. Its key feature is the 650 fill power through the hydrophobic down mechanism. A ClusterLoft base is available for stability. This base stays durable even when subjected to compression. Also, it resists moisture.

There is the use of quality ripstop nylon fabric in the making. Components present inside are broad shoulders, huge footbox, drawstring, Velcro, baffles, and stuff sack case.


  • Repels water and humidity
  • Works well in 3 seasons
  • Durable nylon fabric construction

Why We Liked It?

It does not snag and continues to retain warmth inside.

2. Subzero Extreme Cold Weather ECW Down GI Sleeping Bag:

2. Subzero Extreme Cold Weather ECW Down GI Sleeping Bag

The aforementioned Subzero sleeping bag is one of the thickest and warmest sleeping bags. Interior comes with 20% polyester filling and 80% down. On the other hand, the exterior shell is made up of poplin cotton. This shell is durable and water-repellent. The length is 84 inches. The width at the top is 30 inches and that at the bottom is 14 inches. The total weight is 8 lbs. A drawcord hood is also available.


  • Effectively repels water
  • Great insulation and warmth
  • Durable and portable

Why We Liked It?

It comes in heavy-duty construction and is safe to store.

1. Hyke & Byke Katahdin 625 Fill Sub Zero Sleeping Bags :

1. Hyke & Byke Katahdin 625 Fill Power Hydrophobic Sleeping Bag

Presented in an ultra-lightweight design, it feels comfortable to carry this sleeping bag. The 625 fill power is sufficient to provide excellent insulation against cold. It can work flawlessly at 0°F to retain warmth inside.

The hydrophobic insulation abilities and waterproof fabric are two of its most important features. Within the structure, the microscopic air clusters are present. They create a loft that traps heat and offers warmth to your body. The structure also highlights nylon fabric liner and durable zippers.


  • Easy to store and transport
  • Maximum trapping of heat
  • Resists cold and moisture

Why We Liked It?

It is easy to zip/unzip the bag to vary the level of warmth.

Concluding Note:

The sub zero sleeping bags are the best travel companions during cold weather. They excel at heat retention and anyone can transport them easily.

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