Top Sub Zero Degree Mummy Sleeping Bags


Our review process

Our team has collected, researched, and analyzed information on hundreds of different types of sleeping bags in order to show you our top scoring sleeping bags today. We then further sub-categorized them and looked more specifically at 9 different sub zero degree mummy sleeping bags. In our research, we considered 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 leading sub zero degree mummy sleeping bags available on the market. But don't just take our word for it, check out some of the pros and cons of some of the main specs.

Before deciding on your new sub zero degree mummy sleeping bag, there are some things we think you should consider. Sub-zero degree sleeping bags are ideal for winter trips outdoors, so you won't have to pack tons of extra layers or blankets for those cold nights. They have advanced technology like Thermotech insulation, sealing in warmth even on the most frigid nights. These sleeping bags come with a tight fitted hood design, so your neck and head will be enveloped in warmth. 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 quick-drying technology, which will maximize thermal efficiency even when wet and moisture will not soak the fabric. 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 weigh less than rectangular bags, so you won't have to sacrifice warmth over weight. However, mummy sleeping bags provide less space to move around, making them less suitable for sleepers who toss and turn. On the other hand, they are good for cold weather, providing maximum warmth, since their tight fitting cut is designed to trap body heat.

Our Top Ranking Sleeping Bags:
Product NameBrandWeightColorSize
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
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
royal blue
single
Best Affordable Option
3
An image of Snugpak Basecamp OPS Sub Zero Degree Polyester Sleeping Bag
Snugpak Basecamp OPS Sub Zero Degree Polyester Sleeping Bag
Snugpak
5.75
olive
4
An image of Western Mountaineering Puma Sub Zero Degree Sleeping Bag
Western Mountaineering Puma Sub Zero Degree Sleeping Bag
Western Mountaineering
6.1
royal blue
single
5
An image of Western Mountaineering Bison GWS Sub Zero Degree Sleeping Bag
Western Mountaineering Bison GWS Sub Zero Degree Sleeping Bag
Western Mountaineering
3.8
red
single
Our Top Ranking Sleeping Bags
Customer Rating
Brand
Western Mountaineering
Weight
3.8
Color
sage
Size
single
Customer Rating
Brand
Western Mountaineering
Weight
3.5
Color
royal blue
Size
single
Customer Rating
Brand
Snugpak
Weight
5.75
Color
olive
Size
Customer Rating
Brand
Western Mountaineering
Weight
6.1
Color
royal blue
Size
single
Customer Rating
Brand
Western Mountaineering
Weight
3.8
Color
red
Size
single
Best Overall Score
An image of Western Mountaineering Lynx Gore Windstopper Sub Zero Degree Down Sleeping Bag

If you want to get a good night's sleep while taking on the outdoors, you'll want to learn all about the Western Mountaineering Lynx Gore Windstopper Sub Zero Degree Down Mummy Sleeping Bag. This Western Mountaineering sleeping bag features a down lining, lasting for many years with the proper upkeep. It has a mummy shape, which is larger on top and more fitted on the bottom, keeping warm air inside the sleeping bag. This sleeping bag has a compressible design and is made to be compact, helping you get rid of bulk. Featuring a lightweight build, it is great if you're planning on trekking or hiking long trails by foot. It is made with Gore Windstopper™ fabric, so you will keep warm in windy conditions as this sleeping bag wind-resistant. Withstanding sub-zero degree temperatures, it can seal in warmth even on the most frigid nights.

    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

If you want to get a good night's sleep while taking on the outdoors, you'll want to learn all about the Western Mountaineering Sub Zero Degree Mummy Sleeping Bag. Featuring a mummy shape, this sleeping bag is tight fitting to prevent warm air from escaping. 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 Western Mountaineering sleeping bag features Microlite XP™ microfiber, which is very breathable, lightweight, 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
Best Affordable Option
An image of Snugpak Basecamp OPS Sub Zero Degree Polyester Sleeping Bag

With the Snugpak Basecamp OPS Sub Zero Degree Polyester Mummy Sleeping Bag, you can experience a great night's sleep while on your weekend away. This Snugpak sleeping bag has a mummy shape, sealing in your body heat since it is very fitted. Featuring a sub-zero degree temperature rating, it can seal in warmth even on the most frigid nights. It has a polyester lining, which is breathable and soft on your skin and does not get as hot as other fabrics once you're inside, and a polyester shell, which deflects UV light, shielding you from damaging sun rays. This sleeping bag has a compression bag, which will make storing your sleeping bag hassle-free.

    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

Get a great night's sleep while using the Western Mountaineering Puma Sub Zero Degree Mummy Sleeping Bag. This sleeping bag has a mummy shape, sealing in your body heat since it is very fitted. Featuring a sub-zero degree temperature rating, it is thermally efficient, providing you with the greatest amount of insulated space. It features Gore Windstopper™ fabric, which shields you from all windy conditions by using a windproof membrane that protects your body warmth. With a compressible design, it does not take up all of the usable space in your pack so you will have sufficient room to bring along other equipment. The hood has drawstrings, which allows you to adjust the fit depending on the temperature. This Western Mountaineering sleeping bag has weather-resistant technology, which will protect against humidity during both hot and cold temperatures.

    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

If you're looking for a new sleeping bag, you might want to consider the Western Mountaineering Bison GWS Sub Zero Degree Mummy Sleeping Bag, which is rated very highly among customers. This Western Mountaineering sleeping bag has a mummy shape, which is wider on top and more tapered on the bottom, keeping warm air close to your body. It features Gore Windstopper™ fabric, which protects you from all windy conditions by using a porous membrane that keeps you warm. With a sub-zero degree temperature rating, this sleeping bag can prevent any icy drafts from keeping you up at night. It has a compressible design, so your sleeping bag will not take up a lot of room, leaving you with enough space to bring along your other equipment. Featuring a lightweight build, it won't hurt your shoulders to carry.

    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 highly durable, and when taken care of, can usually last for many years. Good for winter weather, it is built with durable materials that are highly insulated which shield against extremely cold temperatures. With a lightweight build, this sleeping bag is an excellent choice if weight is your first priority.

    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 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, which will keep your bag organized. The hood is designed with drawstrings, so you can adjust the tightness based on the temperature outside.

    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 a great night's sleep while on your weekend getaway. This Browning sleeping bag has a polyester lining and a nylon ripstop shell, which doesn't absorb sunlight and is breathable and comfortable. 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 fits easily into a backpack or overnight bag. Designed for camping, it gives you insulation to comfortably sleep outdoors after the temperatures drop at night. This Browning sleeping bag has TechLoft Gold insulation, which will retain warmth by utilizing synthetic insulation. It has a stuff sack, which will keep your bag organized. This Browning sleeping bag can withstand sub-zero degree temperatures, ensuring a well-insulated space that allows you to create a warm microclimate with your body heat.

    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
An image of Browning McKinley Sub Zero Degree Polyester Sleeping Bag

Sleep comfortably with the Browning McKinley Sub Zero Degree Polyester Mummy Sleeping Bag. With a mummy shape, this Browning sleeping bag is fitted to prevent cold air pockets. It is designed with a polyester lining and it is built with a nylon ripstop exterior, so it resists wear and tear. This sleeping bag features Techloft silver insulation, which utilizes tiny, silicone-coated, micro-denier fibers that increase insulation, warmth, and compactness. Perfect for hunting, it will keep you insulated on overnight trips when it gets cold in the woods. It is made to be compact and has a compressible design, so your sleeping bag will not take up a lot of room, leaving you with enough space to bring along your other gear. Featuring a sub-zero degree temperature rating, it is thermally efficient, providing you with the greatest amount of insulated space. This sleeping bag has a stuff sack, which takes up hardly any space and will make packing your bag so much easier.

    Pros
    • Folds up compactly
    • Compresses easily
    • Stuff sack will keep your backpack organized
    Cons
    • Polyester stains easily
    • Mummy shape has a tailored fit which can be too cramped for some
    • Stuff sack can damage the sleeping bag's filling if used for too long
Sub Zero Degree Mummy Sleeping Bags: Understanding More About What's On the Market:
Pros and Cons of Different Liner Materials for Sub Zero Degree Mummy Sleeping Bags
Polyester Sleeping Bags

Are polyester sleeping bags the best choice for you? Take a look at this particular sub zero degree mummy sleeping bag with a polyester liner that we highly recommend. 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. They are breathable, causing the temperature inside your bag to stay stable and pleasant. They are easy to clean, so they can go many years before needing a complete wash. Polyester sleeping bags are extremely durable, so no matter how many times they go in the wash, they won't pill or unravel. They dry quickly, so when facing wet conditions, they hardly absorb any moisture.

Down Sleeping Bags

We found three great sub zero degree mummy sleeping bags that have a down liner to help you decide if this is the right material you want. Down sleeping bags are designed to be insulated, so they retain your body heat very well, keeping you warm regardless of the weather. They can be easily compressed, giving you extra room for all the food and gear you need for your trip so you won't feel limited on space when packing. They are very soft, so you can get a good night's sleep after a long day in the outdoors. Down sleeping bags are extremely durable, so no matter how many times they go in the wash, they won't pill or unravel. Perfect for chilly nights in the woods, they will keep you snug and cozy. They are breathable, so whether it's a colder or warmer night, you'll feel comfortable sleeping in a variety of outdoor temperatures. Now that you know a bit more about down, choose the perfect one for you here.