20 Best 40 Degree Sleeping Bag [2023]

Are you looking for the best 40 degree sleeping bag? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling 40 degree sleeping bag.

We Recommended:

# Preview Product
1 Coleman Sun Ridge 40°F Warm Weather Sleeping Bag, Blue Coleman Sun Ridge 40°F Warm Weather Sleeping Bag, Blue
2 Kelty Cosmic Synthetic Fill 40 Degree Backpacking Sleeping Bag, Long – Compression Straps, Stuff... Kelty Cosmic Synthetic Fill 40 Degree Backpacking Sleeping Bag, Long – Compression Straps,...
3 Coleman Sleeping Bag | Cold-Weather 20°F Brazos Sleeping Bag, Navy, 10' x 17.8' x 10.4' Coleman Sleeping Bag | Cold-Weather 20°F Brazos Sleeping Bag, Navy, 10" x 17.8" x 10.4"
4 High Peak Outdoors Cascade -40-Degree Sleeping Bag High Peak Outdoors Cascade -40-Degree Sleeping Bag
5 Kelty Mistral Synthetic Camping Sleeping Bag - 40 Degree, Regular, Green Kelty Mistral Synthetic Camping Sleeping Bag - 40 Degree, Regular, Green
6 Columbia 40 Degree Coalridge Hooded Sleeping Bag (80) Columbia 40 Degree Coalridge Hooded Sleeping Bag (80)
7 Guide Gear Sleeping Bag for Adults, Cold Weather, Winter, Hiking, Camping, Hunter, Canvas, -30... Guide Gear Sleeping Bag for Adults, Cold Weather, Winter, Hiking, Camping, Hunter, Canvas, -30...
8 Kelty Tuck Synthetic Mummy Sleeping Bag (2020 Update) - 40 Degree Long Kelty Tuck Synthetic Mummy Sleeping Bag (2020 Update) - 40 Degree Long
9 Ledge Sports Rocky Gap -20 F Degree XL Oversize Sleeping Bag (90 X 40) Ledge Sports Rocky Gap -20 F Degree XL Oversize Sleeping Bag (90 X 40)
10 HiZYNICE 0 Degree Sleeping Bag for Adults Cold Weather Cotton Flannel Big and Tall Extra Large Wide... HiZYNICE 0 Degree Sleeping Bag for Adults Cold Weather Cotton Flannel Big and Tall Extra Large...
11 Big Agnes Echo Park (FireLine Max) Sleeping Bag, 40 Degree Big Agnes Echo Park (FireLine Max) Sleeping Bag, 40 Degree
12 Browning Camping Kenai -20 Degree Wide Mummy Sleeping Bag , Clay, 40-Inch x 86-Inch Browning Camping Kenai -20 Degree Wide Mummy Sleeping Bag , Clay, 40-Inch x 86-Inch
13 REDCAMP Cotton Flannel Sleeping Bag for Camping, 50F/10C 3-Season Warm and Comfortable, Envelope... REDCAMP Cotton Flannel Sleeping Bag for Camping, 50F/10C 3-Season Warm and Comfortable, Envelope...
14 Big Agnes King Solomon 15 (650 DownTek) Sleeping Bag, 15 Degree, 40' Double Wide Big Agnes King Solomon 15 (650 DownTek) Sleeping Bag, 15 Degree, 40" Double Wide
15 Lightweight Blue Sleeping Bag by RevalCamp. Indoor & Outdoor use. Great for Kids, Youth & Adults.... Lightweight Blue Sleeping Bag by RevalCamp. Indoor & Outdoor use. Great for Kids, Youth & Adults....
16 TETON Sports 1025L Deer Hunter Sleeping Bag; Warm and Comfortable Sleeping Bag Great for Fishing,... TETON Sports 1025L Deer Hunter Sleeping Bag; Warm and Comfortable Sleeping Bag Great for Fishing,...
17 FORCEATT Mummy Sleeping Bag for 3-4 Seasons,Use Temperature is 14°F-59°F, Backpacking Sleeping Bag... FORCEATT Mummy Sleeping Bag for 3-4 Seasons,Use Temperature is 14°F-59°F, Backpacking Sleeping...
18 0 Degree Winter Sleeping Bags for adults camping (350GSM) -Temp Range (5F – 32F) Portable... 0 Degree Winter Sleeping Bags for adults camping (350GSM) -Temp Range (5F – 32F) Portable...
19 Marmot Voyager Jr. 40 Kids' Mummy Sleeping Bag, 40-Degree Rating Marmot Voyager Jr. 40 Kids' Mummy Sleeping Bag, 40-Degree Rating
20 Marmot Voyager 45 Mummy Sleeping Bag , 45 degree rating. Marmot Voyager 45 Mummy Sleeping Bag , 45 degree rating.
SaleBestseller No. 2
Kelty Cosmic Synthetic Fill 40 Degree Backpacking Sleeping Bag, Long – Compression Straps, Stuff...
  • 40 Degree Temp Rating, Long Size: Fits sleepers up to 6ft 6in, fill weight 26. 5oz, total weight 2lbs 9oz, stuff size (non-compressed) 15x8 inches....
  • Packability: Integrated compression stuff sack, coupled with the premium packability of the synthetic fill allow the Cosmic synthetic to reach...
  • Insulation: Cirroloft synthetic insulation provides reliable warmth in cold and damp conditions, maintains loft for even coverage with no cold spots....
  • Tailored Fit: Natural fit spacious footbox gives more room to wiggle your toes, and length options range to fit sleepers 5’8” to 6’6”. A handy...
  • Kelty Craftsmanship: Kelty is synonymous with quality in the outdoor community. Kelty gear is built for play, and built to last. The Cosmic Synthetic...
Bestseller No. 3
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
  • PREVENTS HEAT LOSS: A draft tube along the zipper keeps body heat from escaping
  • BUILT TO LAST: Durable construction keeps insulation from shifting
  • DIMENSIONS: 75 x 33 inch. Fiberlock Construction prevents insulation from shifting, extending life of your sleeping bag
Bestseller No. 4
High Peak Outdoors Cascade -40-Degree Sleeping Bag
  • Hood and Drawstring closure and barrel lock
  • 2 Bags can be zipped together
  • Thermal Collar
  • 86 inches long x 34 inches wide
Bestseller No. 5
Kelty Mistral Synthetic Camping Sleeping Bag - 40 Degree, Regular, Green
  • Budget Friendly: Conquer sleep in the outdoors, without killing your budget. The Mistral is designed to give you everything you need, and nothing you...
  • Durable Materials: Outer shell and inner liner both made using durable and soft 190T Teffeta Polyester. Equal parts comfortable and weather-ready, the...
  • Offset Quilt Pattern: The Quilt-style stitch pattern provides the most efficient, even coverage of insulation throughout the bag, eliminating cold...
  • Synthetic Insulation: Kelty’s Cloudloft insulation (the same fill we use in our camp pillows and doublewide sleeping bags) provides reliable warmth,...
  • Kelty Craftsmanship: Kelty is synonymous with quality in the outdoor community. Kelty gear is built for play, and built to last. The Mistral sleeping...
SaleBestseller No. 6
Columbia 40 Degree Coalridge Hooded Sleeping Bag (80)
  • DURABLE Ripstop fabric and hollow core fiber fill helps this sleeping bag withstand your most rugged adventures
  • HOLLOW CORE FIBER FILL This sleeping bag filling is more resilient, water resistant, better maintains thermal properties when wet, and is loftier and...
  • CAMP PAD SLEEVE No more sliding around at night - camp pad sleeve and strap holds your camp pad in place while you sleep **camp pad NOT included
  • HOODED Cozy hood with one-handed cinch cord keeps you warm and cozy on chilly nights
  • PACK WEIGHT 5 lbs
Bestseller No. 7
Guide Gear Sleeping Bag for Adults, Cold Weather, Winter, Hiking, Camping, Hunter, Canvas, -30...
  • EXTREME SLEEPING BAG – Our down sleeping bag is rated to -30 degrees Fahrenheit and ideal for late-season hiking, hunting and camping in low...
  • GENEROUSLY SIZED - The rectangular-shaped sleep bag is a generous size and allows room to move for a comfortable sleep, unlike narrower bags
  • CANVAS SHELL – Featuring a cotton duck canvas shell and brushed-cotton flannel plaid lining for cozy outdoor camping on winter nights
  • INSULATED – 9 lbs. of fiberfill insulation keeps you toasty with a 2-way zipper for easy access. Sleeping bag straps are included so you can roll up...
  • HOODED – The camping sleeping bag features an attached hood and drawstring to keep in the heat. The robust design is highly durable and made from...
Bestseller No. 8
Kelty Tuck Synthetic Mummy Sleeping Bag (2020 Update) - 40 Degree Long
  • Are you a tosser, a turner, a flipper, or all of the above? However you define being comfortable, our Tuck mummy bag has what it takes to match those...
  • Optimal Combination of Warmth and Compressibility: ThermaPro is a fiber blend engineered to retain warmth & provide superior packability, even in cold...
  • Comfort Tuck Zipper: Kelty’s Tuck sleeping bags feature a J shape zipper around the footbox of the bag, giving you the option of sticking one or...
  • Extra Space: Natural fitting, spacious footbox, plus an additional 1. 5 inches of space from head to toe, with the unique oval/mummy design.
  • 40 Degree Temp Rating, Long Size: Fits sleepers up to 6ft 6in, fill weight 22oz, total weight 2lbs 10oz, stuff size (non-compressed) 15x8 inches....
Bestseller No. 9
Ledge Sports Rocky Gap -20 F Degree XL Oversize Sleeping Bag (90 X 40)
  • Size: 90 inches X 40 inches X 40 inches (XL Single), Stuff Dimension: 36 inches X 12 inches
  • Fill Weight: 7.2 lb., Pack Weight 10.1 lb., Water Resistant
  • DTX Durable/Light 190T Shell, Pongy Lined, Hibernate Elite Fill
  • Dual Wall Offset Union, Drawstring Closure, Thermo-Shield, Contour Adjustable Hood
  • Full Length Zipper, Left and Right Zipper Available, Two Bags Zip Together, External Pocket
Bestseller No. 10
HiZYNICE 0 Degree Sleeping Bag for Adults Cold Weather Cotton Flannel Big and Tall Extra Large Wide...
  • COZY: Soft 100% cotton flannel lining;anti-snag zippers can unzips inside or outside,and unzips at the top or bottom for easy access and...
  • WARM: the extreme temperature is 0 ℉,the limit temperature is 15 ℉,and the comfort temperature is 30 ℉.A draft tube along the zipper keeps body...
  • BIG & TALL: 90 x 39 in.; ideal for campers up to 6 ft. 7 in,and people who like side sleeping or roomy.
  • MACHINE WASHABLE: Wash in cold water with mild detergent,on the gentle cycle.please put the flannel surface in the washing machine to protect the...
  • FEATURES: You can zipping together two bag(left and right)to be a double sleeping bag,this sleepig bag can also fully opend to be a mat.
Bestseller No. 11
Big Agnes Echo Park (FireLine Max) Sleeping Bag, 40 Degree
  • PERFECT FOR ACTIVE SLEEPERS - Echo Park Series synthetic bags are cut tall and wide for those who like a little more room to move around at night, or...
  • CRAZY COMFORT – The Echo Park Sleeping Bag with Flex Pad Sleeve attaches to your pad just like a fitted bed sheet, creating a single, integrated...
  • OPTIONS! – The unique construction of the Echo Park series makes your bag feel more like your bed at home. Use the zip-off option to create a...
  • COZY AND WARM – Use the top corner hand pockets to wrap the bag around your shoulders like you do with your comforter at home. The no-draft collar,...
  • INSULATION – Insulated with FireLine MAX Synthetic Insulation. Lightweight nylon rip-stop shell with water repellent finish combined with a soft,...
Bestseller No. 12
Browning Camping Kenai -20 Degree Wide Mummy Sleeping Bag , Clay, 40-Inch x 86-Inch
  • Outer made of 210T nylon diamond rip stop fabric paired with inner microfiber liner
  • Offering maximum insulation, loft and compactness with techloft+ insulation
  • Keep the cold out and the warm in with two-layer construction and insulated chest and zipper baffle
  • Fully equipped with #10 separating zipper and compression stuff sack
  • Dimensions: 40" X 86", weight: 8 lbs. 6 oz. , fill weight: 108 oz.
Bestseller No. 13
REDCAMP Cotton Flannel Sleeping Bag for Camping, 50F/10C 3-Season Warm and Comfortable, Envelope...
  • Larger size and Softer Material: Size is 75"x33"/190x84cm. Perfect REDCAMP sleeping bag flannel for adults of 6 feet in tall. High-quality and durable...
  • Temperature Range: 3lbs filling cotton lined adult sleeping bag is comfort in 50°F/10°C and fits temperature range 41-68°F/5-15°C. 4lbs filling...
  • Reverse Zipper: 2-way zippers that right or left-hand zippers allow for 2 flannel sleeping bags for camping to be attached together.
  • Compressed Sack: Convenient internal stuff pocket for store your belongings and a compressed oxford sack is included to pack. Package size:...
  • 100% MONEY BACK GUARANTEE: REDCAMP offers a 360-day limited manufacturer.value warranty. If you're not satisfied for any reason, please contact us...
Bestseller No. 14
Big Agnes King Solomon 15 (650 DownTek) Sleeping Bag, 15 Degree, 40" Double Wide
  • Rated to 15 F, the King Solomon 15 features 650 fill DownTek PFC-Free Water-Repellent Down utilizing Bluesign approved chemistry, which maintains...
  • No more slipping off your sleeping pad: Flex Pad Sleeve features stretch construction that accommodates multiple pad widths, and easily connects your...
  • Use the top corner hand pockets to wrap the bag around your shoulders like you do with your comforter at home; Pillow Barn - keeps your pillow tucked...
  • SPECS - 2 person capacity; Bag weight: 4lb 5oz; Compressed Size: 7 in x 8 in; Fits up to 6 ft tall; Polyester rip-stop shell fabric with a water...
  • The Big Agnes System bags offer technical, roomy sleeping spaces for those who desire both comfort and compressibility; An award-winning leader in the...
Bestseller No. 15
Lightweight Blue Sleeping Bag by RevalCamp. Indoor & Outdoor use. Great for Kids, Youth & Adults....
  • 🎁 Help Give Back To The Community - With your support, we donate sleeping bags every month to organizations making a difference in communities...
  • ✅ Ultra Lightweight and Easy to Pack - these sleeping bags pack down into an ultra compact bag in seconds. There’s no need to fold or roll it....
  • ✅ Roomy and Comfortable - at 30 x 71 inches, these sleeping bags are incredibly roomy for any adult or child under 6’1. It’s easy to get in, get...
  • ✅ Colors and Designs For The Whole Family - with 12 bright, vibrant colors and designs to choose from, every member of your family will find a...
  • ✅ RevalCamp Promise - we strongly stand behind the great craftsmanship of these sleeping bags. If you aren’t satisfied with the comfort, the size,...
SaleBestseller No. 16
TETON Sports 1025L Deer Hunter Sleeping Bag; Warm and Comfortable Sleeping Bag Great for Fishing,...
  • COMFORTABLE SLEEPING BAG: Soft lining; Half-circle mummy style hood keeps you warm and your pillow clean; Unzips at the top or bottom for easy access...
  • STAY WARM IN COLD WEATHER: You’ll be warm and rested in this sleeping bag; Innovative fiber fill, double-layer construction and draft tubes work...
  • TOUGH, DURABLE SLEEPING BAG: Soft liner and rugged, water-resistant canvas shell will stand up to years of rigorous adventures
  • SLEEP WARM: Fluff your sleeping bag and use a camp pad to sleep warmer; Hang loops for long-term storage to maintain maximum loft
  • TETON SPORTS PROMISE: Reach out to our AMAZING product support team if you have any questions or concerns; YOU CAN COUNT ON US to get you taken care...
Bestseller No. 17
FORCEATT Mummy Sleeping Bag for 3-4 Seasons,Use Temperature is 14°F-59°F, Backpacking Sleeping Bag...
  • 【COMPACT AND LIGHTWEIGHT】The mummy sleeping bags are large enough to accommodate an adult with a height of 77.95in, a shoulder circumference of...
  • 【A COMFORTABLE NIGHT SLEEP】The thicken 400g/m² filling material and inner neck surrounding and outer drawstrings hood. Prevent the wind from...
  • 【BREATHABLE & WATERPROOF FABRIC】The 220T hydrophobic polyester fabric for effective waterproofing. While keeping the heat in the sleeping bag,...
  • 【ANTI-SNAG ZIPPER】 Uses internal and external two-way anti-bite zippers. The intimate zip and bite-proof design prevents the zipper from getting...
  • 【LONG LASTING DURABILITY】The sleeping bag fabric uses advanced lattice weaving technology to make the fabric stronger. Effectively improve the...
Bestseller No. 18
0 Degree Winter Sleeping Bags for adults camping (350GSM) -Temp Range (5F – 32F) Portable...
  • % Lightweight and Highly Portable: Top Line 100 percent polyester fiber 450GSM aligned with top-notch shell provide extra warm comfort during outdoor...
  • % Ultra Comfortable and Design for COLD/WARM Weather (temperature range from 5F - 32F degree): Rioyalo sleeping bags are designed to ensure you get a...
  • % Skin Friendly and Super Comfy: The first-rate 190T Pongee lining is skin-friendly. What a soft silky and awesome cozy feeling you will have when...
  • % High Quality and super Durable and Waterproof: Top quality 210T Nylon ripstop on the shell, 190T Pongee Lining in 100% Polyester, as well as premium...
  • % 100% Satisfaction: Your satisfaction is our ultimate goal. With 30 days’ hassle-free return policy, we want to ensure our determination and...
Bestseller No. 19
Marmot Voyager Jr. 40 Kids' Mummy Sleeping Bag, 40-Degree Rating
  • Kids' mummy-style 40-degree sleeping bag for individuals under 5 feet in height; featuring SpiraFil high-loft insulation for maximum warmth and...
  • EN tested to provide a comfortable night’s sleep at temperatures as low as 40°F
  • Anatomically shaped footbox for more wiggle room and less heat buildup
  • Fold-down secondary zipper for ventilation and easy access
  • 70D 100 percent polyester, 2.2 ounce/yard; 70D 100 percent embossed polyester, 2.2 ounce/yard
Bestseller No. 20
Marmot Voyager 45 Mummy Sleeping Bag , 45 degree rating.
  • Mummy-style 45-degree sleeping bag for backpacking and other outdoor activities; featuring SpiraFil high-loft insulation for maximum warmth and...
  • EN rated as comfortable for men at a lower limit of approximately 45°F
  • Full-length, locking YKK two-way zipper
  • Regular: 1 pound, 13 ounce.; pack volume: 305.7 curie (5.01 liters); interior length: 84"; 50D 100 Percent polyester, 2.1 ounce/yard; 50D 100 percent...
  • Long: 2 pounds; pack volume: 308.8 curie (5.06 liters); interior length: 90"; 50D 100 percent polyester, 2.1 ounce/yard; 50D 100 percent polyester,...

Having trouble finding a great 40 degree sleeping bag?

This problem is well understood by us because we have gone through the entire 40 degree sleeping bag research process ourselves, which is why we have put together a comprehensive list of the best 40 degree sleeping bags available in the market today.

After hours of searching and using all the models on the market, we have found the best 40 degree sleeping bag for 2023. See our ranking below!

How Do You Buy The Best 40 Degree Sleeping Bag?

Do you get stressed out thinking about shopping for a great 40 degree sleeping bag? Do doubts keep creeping into your mind?

We understand, because we’ve already gone through the whole process of researching 40 degree sleeping bag, which is why we have assembled a comprehensive list of the greatest 40 degree sleeping bag available in the current market. We’ve also come up with a list of questions that you probably have yourself.

John Harvards has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for 40 degree sleeping bag that you consider buying. Your questions might include the following:

  • Is it worth buying an 40 degree sleeping bag?
  • What benefits are there with buying an 40 degree sleeping bag?
  • What factors deserve consideration when shopping for an effective 40 degree sleeping bag?
  • Why is it crucial to invest in any 40 degree sleeping bag, much less the best one?
  • Which 40 degree sleeping bag are good in the current market?
  • Where can you find information like this about 40 degree sleeping bag?

We’re convinced that you likely have far more questions than just these regarding 40 degree sleeping bag, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for 40 degree sleeping bag, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible 40 degree sleeping bag. Make sure that you are only using trustworthy and credible websites and sources.

John Harvards provides an 40 degree sleeping bag buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information.

How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available 40 degree sleeping bag currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of 40 degree sleeping bag has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an 40 degree sleeping bag?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your 40 degree sleeping bag.
  5. Customer Ratings: Number ratings grade 40 degree sleeping bag objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their 40 degree sleeping bag.
  7. Product Quality: You don’t always get what you pay for with an 40 degree sleeping bag, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an 40 degree sleeping bag is should be an indication of how long it will work out for you.

John Harvards always remembers that maintaining 40 degree sleeping bag information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding 40 degree sleeping bag is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly!

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FAQ:

Q: What is the best degree for a sleeping bag?

A: – The standard EN/ISO sleeping bag ratings are always off by 10-15 degrees (20-25 degrees in quilts) – Use the “Comfort Rating” not the “Lower Limit” rating (what is listed on bags) for a better approximation of true warmth – That means a 10-15 degree bag is best for the average hunter in elk season, adjust up or down according to your individual situation

Q: What is the coldest rated sleeping bag?

A: If your sleeping bag is too short or small,you won’t be covered up completely. If your sleeping bag is too tight,you will also feel cold. If your sleeping bag is not insulated enough. When your toes are sticking out of your sleeping pad. When you’re sleeping or camping in a firm or cold wind.

Q: What is the best cold weather sleeping bag?

A: 3 season Insulated zip baffle which retains heat within the sleeping bag and reduces cold spots and a woven zip puller allowing for quick and easy operation of the zip Limit -3°/Extreme -20°/Comfort 2°

Q: What to wear at 40 degrees?

A: 40 to 50 degrees: Lightweight capris or shorts with a long-sleeve shirt layered over a t-shirt or tank. … 30 to 40 degrees: Lightweight running pants or capris with a long sleeve shirt or light jacket,layered over a t-shirt. … 20 to 30 degrees: Lightweight or windproof/thermal running pants,depending on the wind-chill. …