Best 20 Degree Rectangular Sleeping Bags for 2019


Our review process

Our team has gathered, researched, and analyzed information on more than 800 various types of sleeping bags in order to recommend our top ranked sleeping bags on the market. We then further sub-categorized them and looked more specifically at 19 different 20 degree rectangular sleeping bags. In our research, we took into consideration a range of different key features among the 28,000 different data points and combined it with customer reviews to inform you of the finest 20 degree rectangular sleeping bags available on the market. But don't just take our word for it, check out some of the benefits and disadvantages of some of the main specs.

We've reviewed 20 degree rectangular sleeping bags and wanted to let you know about them. 20 degree sleeping bags should keep you comfortable down to 20°F, although do keep in mind that this doesn't account for variables such as layering, what you're wearing, and various other factors. They are generally cheaper than sub-zero degree bags, so you can purchase one without feeling worried about going outside of your budget. These sleeping bags have a tight fitted hood design, so your neck and head will be enveloped in warmth.

Rectangular sleeping bags have an incredibly spacious design, making them great for people who feel too confined by the tight mummy shape. They 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. With double zippers, they are perfect for a cozy night of sleeping for two as you can zip two sleeping bags together. However, they don't trap and heat the air around your body effectively enough to keep you warm in very low temperatures, allowing the cool air to circulate due to their spacious design. On top of that, rectangular sleeping bags are quite heavy, so they may weigh you down on long backpacking trips.

Our Top Ranking Sleeping Bags:
Product NameBrandWeightLiner MaterialSize
Best Overall Score
1
An image of Slumberjack Country Squire 51731612LR 20 Degree Flannel Sleeping Bag
Slumberjack Country Squire 51731612LR 20 Degree Flannel Sleeping Bag
Slumberjack
12.9
flannel
single
Runner Up
2
An image of Abco Tech 20 Degree Polyester Sleeping Bag
Abco Tech 20 Degree Polyester Sleeping Bag
Abco Tech
polyester
single
Best Affordable Option
3
An image of Coleman Dunnock Cold Weather SS-SMS-765711 Men's 20 Degree Cotton Flannel Sleeping Bag
Coleman Dunnock Cold Weather SS-SMS-765711 Men's 20 Degree Cotton Flannel Sleeping Bag
Coleman
7.28
cotton flannel
single
For Cold Weather
4
An image of Alps Mountaineering Twin Peak 4119826 20 Degree Microfiber Sleeping Bag
Alps Mountaineering Twin Peak 4119826 20 Degree Microfiber Sleeping Bag
Alps Mountaineering
11.56
microfiber
double
For Sleeping Two
5
An image of Alps Mountaineering Spectrum 4119833 20 Degree Polyester Sleeping Bag
Alps Mountaineering Spectrum 4119833 20 Degree Polyester Sleeping Bag
Alps Mountaineering
polyester
double
Our Top Ranking Sleeping Bags
Customer Rating
Brand
Slumberjack
Weight
12.9
Liner Material
flannel
Size
single
Customer Rating
Brand
Abco Tech
Weight
Liner Material
polyester
Size
single
Customer Rating
Brand
Coleman
Weight
7.28
Liner Material
cotton flannel
Size
single
Customer Rating
Brand
Alps Mountaineering
Weight
11.56
Liner Material
microfiber
Size
double
Customer Rating
Brand
Alps Mountaineering
Weight
Liner Material
polyester
Size
double
Best Overall Score
An image of Slumberjack Country Squire 51731612LR 20 Degree Flannel Sleeping Bag

Use the Slumberjack Country Squire 20 Degree Flannel Rectangular Sleeping Bag to stay warm in the outdoors. This sleeping bag has a rectangular shape, which is great for those who like a bit of extra room. It features a polyester shell, and a flannel lining, which has moisture wicking capabilities, drawing dampness away from the body. This Slumberjack sleeping bag can withstand 20°F temperatures, providing you with the warmth you need for temperatures above freezing. It features Slumberloft™ synthetic insulation, which utilizes polyester fibers to create a high level of insulation. It detaches via zippers, so you can transform it into two separate sleeping bags. Made for backpacking, this Slumberjack sleeping bag won't weigh you down while you're taking on the outdoors.

    Pros
    • Flannel lining locks in warmth
    • Polyester exterior deflects UV rays
    • Rectangular shape is easy to roll up and store
    Cons
    • Flannel can shrink
    • Rectangular shape is not very insulated
    • Polyester shell is not so durable
Runner Up
An image of Abco Tech 20 Degree Polyester Sleeping Bag

Before purchasing the Abco Tech 20 Degree Polyester Rectangular Sleeping Bag, it's helpful to know more. This Abco Tech sleeping bag has a rectangular shape, so you will have plenty of room to move around. It features a polyester exterior, which will deflect UV light, protecting you from damaging sunlight, and a polyester lining, which is a synthetic material that is very strong and colorfast. This Abco Tech sleeping bag can be machine washed, so you can easily clean it at home to make sure your bag stays in the best condition. Perfect for year-round use, it will you warm even in very low temperatures, so you don't have to put off sleeping outdoors during the winter months. It is made to be compact, getting rid of the bulk, so you'll have plenty of room for your gear and it also has a compressible design, which fits easily into a backpack or bag. This sleeping bag is designed for backpacking and is lightweight, so it won't be a burden to carry. It is easy to carry and is easy to clean, so you won't have to send it to a professional to maintain its quality and warmth. It can withstand 20°F temperatures and is waterproof, making it a good choice for rainy environments. This sleeping bag features a compression bag, which gives you the perfect space to pack away your sleeping bag and any other small items.

    Pros
    • Can be machine washed
    • Designed to be compact, getting rid of the bulk
    • Compresses easily
    Cons
    • Polyester absorbs grease
    • Rectangular shape is bulkier than other shapes
    • Polyester exterior is not so durable
Best Affordable Option
An image of Coleman Dunnock Cold Weather SS-SMS-765711 Men's 20 Degree Cotton Flannel Sleeping Bag

Choose the Coleman Dunnock Cold Weather Men's 20 Degree Cotton Flannel Rectangular Sleeping Bag to stay warm in the outdoors. This Coleman sleeping bag has a cotton flannel lining and is designed from cotton shell material, so you won't overheat, as it's very strong, highly porous, and doesn't absorb sunlight. It has a rectangular shape, allowing you to sleep on your side, back, or stomach without feeling restricted. With Thermolock technology, this sleeping bag prevents heat loss through the zipper since it has an added layer of insulation along the opening. It is made for camping and is lightweight, making it great if your number one priority is low volume and weight. This sleeping bag can be machine washed and has a zipper guard, preventing the fabric from snagging in the zipper. Great for winter, it can withstand harsh temperatures and still keep you warm. This sleeping bag features a plush bottom, so you won't feel the bumps on the ground beneath you. It has roll control and is made to be easy to pack, so it can be folded down into a practical size to save space in your bag. It features a 20°F temperature rating, which is more recommended for 3 season use, keeping you warm in temperatures above freezing.

    Pros
    • Machine washable
    • Made with a plush bottom
    • Roll control tab keeps the sleeping bag straight
    Cons
    • Rectangular shape is bulkier than other shapes
    • Camping sleeping bags are bulkier than hiking bags
    • Cotton exterior is heavy
For Cold Weather
An image of Alps Mountaineering Twin Peak 4119826 20 Degree Microfiber Sleeping Bag

Choose the Alps Mountaineering Twin Peak 20 Degree Microfiber Rectangular Sleeping Bag to stay warm and cozy in the outdoors. Designed in a double size, this Alps Mountaineering sleeping bag fits two people, allowing you to keep warm through shared body heat. It has a rectangular shape, which is non-tapered, allowing you to comfortably move around in your sleep. This Alps Mountaineering sleeping bag has a nylon ripstop exterior and a microfiber lining, which will retain body heat even when damp.

With a compressible design, this Alps Mountaineering sleeping bag will fold up compactly, leaving you enough space for the rest of your equipment. It is suitable for camping, offering cozy warmth and good compressibility. This Alps Mountaineering sleeping bag unzips on each side for easy access. It has a 20°F temperature rating, providing you with the warmth you need for temperatures above freezing.

    Pros
    • Compresses easily
    • Nylon ripstop shell is breathable and comfortable
    • Rectangular shape is easy to pack up and store
    Cons
    • Rectangular shape is not the warmest option
    • Camping sleeping bags are heavier than hiking bags
    • Double size is not great for hiking
For Sleeping Two
An image of Alps Mountaineering Spectrum 4119833 20 Degree Polyester Sleeping Bag

With the Alps Mountaineering Spectrum 20 Degree Polyester Rectangular Sleeping Bag, you can experience an incredible night's sleep while on your trip. This sleeping bag is ideal for camping and is lightweight, making it great if your number one priority is low volume and weight. Designed in a double size, it sleeps two people, keeping you warm by sharing body heat. It features a polyester lining, which is breathable and comfortable on your skin and does not get as hot as other materials while you're sleeping, and a polyester exterior, which is light and comfortable. This Alps Mountaineering sleeping bag has a rectangular shape, which is perfect for those who like a bit of extra room.

This Alps Mountaineering sleeping bag features a compressible design, giving you enough extra space to bring along your other equipment. It detaches via zippers and has an interior pocket, so you can store your important items, such as your watch. This Alps Mountaineering sleeping bag can withstand 20°F temperatures, providing you with the warmth you need when temperatures are above freezing. It has Techloft silver insulation, which uses tiny, silicone-coated, micro-denier fibers that maximize insulation, warmth, and compactness. This sleeping bag has a stuff sack, which will keep your pack organized.

    Pros
    • Made to compress easily
    • Stuff sack provides a place to stash small items
    • Lightweight build
    Cons
    • Polyester absorbs oil
    • Rectangular shape is heavier than other shapes
    • Camping sleeping bags are not suitable for hiking
For Backpacking
An image of Alps Mountaineering Cinch 4711442 20 Degree Nylon Sleeping Bag

Let's review the Alps Mountaineering Cinch 20 Degree Nylon Rectangular Sleeping Bag, a popular choice among online shoppers. This Alps Mountaineering sleeping bag has a rectangular shape and a hammock design, so it surrounds the entire hammock, providing you with proper insulation and comfort. It is ideal for backpacking and is lightweight, making it great for hiking or traveling long distances on foot. This sleeping bag features a nylon lining and is made with a nylon ripstop shell, resisting wear and tear. 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 equipment. It has a 20°F temperature rating, providing you with the warmth you need for temperatures above freezing. This Alps Mountaineering sleeping bag uses Techloft Micro-Insulation, so you will have maximized insulation and warmth because of tiny, silicone-coated, micro-denier fibers.

    Pros
    • Folds up compactly
    • Made to compress easily
    • Lightweight build
    Cons
    • Nylon pills with excess washing
    • Rectangular shape is not very insulated
    • Hammock sleeping bags can be hard to secure
Additional Picks
An image of Coleman Dunnock 2000004457 Men's 20 Degree Cotton Flannel Sleeping Bag

With the Coleman Dunnock Men's 20 Degree Cotton Flannel Rectangular Sleeping Bag, you can experience an incredible night's sleep while on your weekend away. This sleeping bag has a rectangular shape, which is symmetrical, so it's easy to roll up and store the sleeping bag. It features a cotton flannel lining, which allows for air circulation and has wicking properties that draw moisture away from the body, and a cotton shell, which will take a lot of time to dry. It has a Wrap 'N' Roll™ system, making it super easy to quickly roll up the sleeping bag, tie it, and pack it into its attached carrier bag. This sleeping bag can withstand 20°F temperatures, providing you with the warmth you need for temperatures above freezing. It is ideal for camping, giving you insulation to comfortably sleep outdoors after the temperatures drop at night. It is equipped with a zipper guard, keeping the fabric from getting caught in the zipper. This sleeping bag has roll control and is machine washable, so you can easily clean it at home to ensure your bag stays in the best condition.

    Pros
    • Can be machine washed
    • Roll control tab keeps the sleeping bag in place
    • Zipper guard prevents the fabric from tearing
    Cons
    • Rectangular shape is heavier than other shapes
    • Camping sleeping bags are more difficult to carry than backpacking bags
    • Cotton exterior is heavy
An image of Coleman Dunnock Men's 20 Degree Cotton Flannel Sleeping Bag

Choose the Coleman Dunnock Men's 20 Degree Cotton Flannel Rectangular Sleeping Bag to stay warm in the outdoors. This sleeping bag has a rectangular shape, which is great for those who like room to stretch out. Made with ComfortSmart technology, it includes multiple comfort and convenience features such as zipper technology and added cushioning around your head. It has a cotton flannel lining, which is perfect for colder climates as it keeps in your body heat and it is also designed from cotton shell material, so you won't overheat, as it's very strong, highly breathable, and doesn't absorb sunlight. This Coleman sleeping bag can withstand 20°F temperatures, providing you with the warmth you need for temperatures above freezing. It is perfect for camping, giving you insulation to comfortably sleep outdoors after the temperatures drop at night. It has a zipper guard, preventing the fabric from getting caught in the zipper. This Coleman sleeping bag features a roll control tab, which keeps the sleeping bag straight while packing it up.

    Pros
    • Roll control tab keeps the sleeping bag straight
    • Zipper guard prevents the material from ripping
    • Cotton flannel lining allows for airflow
    Cons
    • Rectangular shape is heavier than other shapes
    • Camping sleeping bags are more difficult to carry than hiking bags
    • Cotton shell is heavy
An image of Abco Tech ABC2096 Boys 20 Degree Polyester Sleeping Bag

With the Abco Tech Boys 20 Degree Polyester Rectangular Sleeping Bag, your kids will have an incredible outdoor adventure. This Abco Tech sleeping bag is made for boys, featuring a stylish design while keeping your children comfortable and warm. It features a polyester shell, which deflects UV light, shielding your kids from damaging sun rays, and a polyester lining, which is light, soft, and does not get as hot as other fabrics during the night. It has a rectangular shape, allowing kids to sleep on their side, back, or stomach without feeling restricted.

This sleeping bag works well for camping trips and is lightweight, making it easy for kids to transport. It is suitable for 4 seasons and is waterproof, keeping out moisture, so your kids won't end up soaked if it starts raining. It is made to be compact and it is designed to be compressible, so you can fit it into your kid's backpack and it will give them sufficient space to take along other essentials. This sleeping bag is ideal for temperatures around 20°F, designed for warmth when outdoor temperatures are in the 20s or above.

This sleeping bag is easy to clean, so you won't have to send it to a professional to maintain its quality and warmth. It features a drawstring carry bag, which is hands free and easy for your kids to bring with them on any adventure. This sleeping bag is easy to carry, making it an excellent option if mobility and packing space are a key factor for you. It has a stuff sack for easily fitting your sleeping bag into your backpack with the rest of your equipment. This Abco Tech sleeping bag is engineered with weather-resistant technology and is machine washable, so you can easily clean it at home to ensure your kid's bag stays in the best condition.

    Pros
    • Machine washable
    • Folds up compactly
    • Compresses easily
    Cons
    • Polyester absorbs sweat
    • Rectangular shape is heavier than other shapes
    • Camping sleeping bags are not suitable for hiking
An image of Abco Tech Men's 20 Degree Polyester Sleeping Bag

Get ready for your next outdoor adventure with the Abco Tech Men's 20 Degree Polyester Rectangular Sleeping Bag. This sleeping bag has a rectangular shape, which is spacious and offers more freedom of movement. It is lightweight and works well for camping trips, giving you insulation to comfortably sleep outdoors after the temperatures drop at night. It features a polyester lining, which is breathable and comfortable on your skin and does not get as hot as other fabrics during the night, and a polyester exterior, which will deflect UV light, protecting you from harmful sunlight.

This Abco Tech sleeping bag is ideal for temperatures around 20°F and is waterproof, keeping out moisture, so you won't end up soaked if bad weather hits. This 4 season Abco Tech sleeping bag can handle very cold conditions or areas with lots of snow. It is designed to be compact, so it cuts down the volume your bag takes up in your pack and it also features a compressible design, which packs easily into a backpack or bag. This Abco Tech sleeping bag detaches via zippers, so you can easily split your double bag into two individual ones. It has a compression bag and is easy to carry, designed for convenient storage and transport.

    Pros
    • Folds up compactly
    • Compresses easily
    • Lightweight build
    Cons
    • Polyester stains frequently
    • Rectangular shape is not very insulated
    • Camping sleeping bags are bulkier than hiking bags
How to Pick Out Your New 20 Degree Rectangular Sleeping Bag: Some Points to Keep In Mind:
Which Size Best Suits 20 Degree Rectangular Sleeping Bags
Double Sleeping Bags

Are double sleeping bags exactly what you're looking for? Learn more about them in this paragraph and if you still want to check them out, then come take a look at this particular 20 degree rectangular sleeping bag that we picked out for you. These sleeping bags are suitable for couples, offering a warm and cozy space for two. However, they take up a bit more space, making them less ideal for backpacking pursuits. A benefit is that they are suitable for car camping, allowing you to sleep comfortably next to your camping partner in a snug and cozy space.

Single Sleeping Bags

It can be hard to decide on the right size for your 20 degree rectangular sleeping bag. We're here to help you think about the perfect choice for you. These sleeping bags are lighter than double sleeping bags, so if you don't need a lot of sleeping space, they are better for carrying less overall weight. They come with enough space for one, providing excellent insulation to the sleeper inside. They are designed to be compact, making them easy to roll up and throw in your bag. If you feel like a single size is the perfect choice for your 20 degree rectangular sleeping bag, you can click here to see if you'd like to get this one.

Decide Which Liner Material to Pick for 20 Degree Rectangular Sleeping Bags
Polyester Sleeping Bags

We compared five awesome 20 degree rectangular 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 are ideal for those with sensitive skin. They are easy to clean, so they can last a long time before needing a complete wash. With great breathability, they won't stick to your skin and make you feel overheated on warmer nights. These sleeping bags are extremely durable to withstand wear and tear. They dry quickly, so even in the wettest conditions, moisture will not soak the fabric. Now that you know a bit more about polyester, choose the perfect one for you here.

Flannel Sleeping Bags

There are two 20 degree rectangular sleeping bags available that come with a flannel liner. Flannel sleeping bags are easy to clean, so with just a damp cloth and a little soap you can keep them in great shape. They are very comfortable, ensuring your child receives a good night's sleep after a long day adventuring in the outdoors. Perfect for extra cold nights in the woods, they will keep you snug and cozy. These flannel sleeping bags are moisture wicking, keeping you dry in high humidity conditions.

Poly Cotton Sleeping Bags

Are poly cotton sleeping bags the right fit for you? Take a look at this particular 20 degree rectangular sleeping bag with a poly cotton liner that we highly recommend. Poly cotton sleeping bags are easy to clean, so they can last a long time before needing a complete wash. They are breathable, allowing the temperature inside your bag to stay stable and pleasant. They are extremely durable, so they will remain in good shape over time. Poly cotton sleeping bags dry quickly, reducing the overall amount of water trapped and absorbed by the material.