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Top 8July 2025

Best Backpacking Sleeping Bag 40 Degree

We made a list of the top 8 Backpacking Sleeping Bag 40 Degree based on verified reviews, popularity and other factors which we summarized for you in this list.

Best Choice

iClimb 3M Thinsulate Insulation Mummy Sleeping Bag with Compression Sack Ultralight Compact Warm Washable for Adults Indoor Outdoor Backpacking Camping Hiking (41F, Green)

iClimb 3M Thinsulate Insulation Mummy Sleeping Bag with Compression Sack Ultralight Compact Warm Washable for Adults Indoor Outdoor Backpacking Camping Hiking (41F, Green)

✓3M Thinsulate Insulation Filling, WARM YET LIGHTWEIGHT, POWERFUL YET THIN. It helps trap body heat, while allowing moisture to escape; Featherless, ECO-FRIENDLY, a kinder alternative to feathers; Water Resistant, 100% Polyester, synthetic fibers absorb less than 1% of their weight in water.
✓COMFORTABLE and DURABLE, 20D nylon fabric, soft, skin-friendly, durable, and windproof. Sleeve on the top to hold your pillow in place; Anatomically Designed 3D Footbox gives your feet a rest after an epic day on the mountain.
✓WARM 3 SEASON SLEEPING BAG, Thermal enhancing, Double-layer construction to eliminate cold spots; Cinchable Draft Collar and Smooth-Curved Baffles to prevent heat loss; Comfort temperature 41℉/ 5℃, Limit temperature 32℉/ 0℃
✓ULTRALIGHT, COMPACT and PORTABLE, Only 2.4 lbs, small when packed, packed size 10.6” × 7.9”; Stuff sack included, easily fit in any backpack. Every ounce matter for backpackers, unlike other heavy bulky ones, this light 3M sleeping bag will provide you a great backpacking trip.
✓LARGE enough for big guys, unpacked size 82” × 32.6”, can fit most people up to 6’10”
✓OTHER FEATURES, Two way anti-snag YKK zippers, easy to climb in and out; Velcro to avoid zipper slippery; Internal pocket to hold your phone and wallet
✓VERSATILE, Great for backpacking, camping, glamping, hiking, travelling, trekking, motorcycling, bike touring, mountaineering, music festivals, and other outdoor adventuring. It is also a great choice for home guests, hotel and office.
✓MACHINE WASHABLE. Spot-clean as needed with a damp sponge. Machine-wash only when necessary in a large capacity, front-loading washing machine. Select cold water and a delicate cycle with two rinses and an additional spin cycle.
✓Lifetime warranty: We stand behind our products and offer a limited lifetime warranty against manufacturer defects.

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3-4 Season Portable Waterproof Envelope Sleeping Bag for Adults & Kids - For Traveling, Camping, Hiking

3-4 Season Portable Waterproof Envelope Sleeping Bag for Adults & Kids - For Traveling, Camping, Hiking

13% Discount

MalloMe Sleeping Bags for Adults Cold Weather & Warm - Backpacking Camping Sleeping Bag for Kids 10-12, Girls, Boys - Lightweight Compact Camping Essentials Gear Accessories Hiking Sleep Must Haves

MalloMe Sleeping Bags for Adults Cold Weather & Warm - Backpacking Camping Sleeping Bag for Kids 10-12, Girls, Boys - Lightweight Compact Camping Essentials Gear Accessories Hiking Sleep Must Haves

✓BEST YEAR ROUND SLEEPING BAG - Temperature rated for 50°F to 77°F. Easily fits a 6ft adult and weighs only around 3lbs. It's perfect for spring, summer, fall, and cool weather. The ultra-strong, waterproof outer protective shell is made from our unique waterproof hex-tech design, double-layered with S-shape stitching, and 3D inner synthetic fiber fill for optimal warmth and insulation to protect you from the elements.
✓CAMP IN COMFORT FOR ALL AGES - Bring the comfort of your own bed to the great outdoors. Our camping sleeping bags are engineered to guarantee a good night's sleep after a hard day of activities. No matter how tough the terrain or long the day, sleep well with MalloMe. And with vibrant colours loved by both boys and girls, they're great for kids too!
✓ULTRALIGHT FOR BACKPACKING - A must have for hiking, backpacking, and camping, the perfect balance of performance and lightweight materials for every adventure. Each sleeping bag comes with a compression sack with straps, which makes it super convenient to store and easy to carry.
✓EASY TO CLEAN - Our waterproof outer shell is easily wiped clean with a damp cloth. In case of heavy soilage the sleeping bag is designed for machine washing as well, ensuring easy maintenance and longevity.
✓EXCELLENT DESIGN - Enjoy high-quality double-sided zippers that are snag-free and super satisfying to use. Tug those drawstrings in the headrest to bring the bag a little closer to your head for extra warmth in colder weather. While you’re there, pat that extra velcro securing strap too - it’ll keep you nice and snug with no unwanted zipper movement. Great sleeping bags for adults and kids.

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Naturehike Lightweight Ultralight Sleeping Bag, Envelope Backpacking Portable, Waterproof, Comfort with Compression Sack for 3 Season Camping, Traveling, Hiking

Naturehike Lightweight Ultralight Sleeping Bag, Envelope Backpacking Portable, Waterproof, Comfort with Compression Sack for 3 Season Camping, Traveling, Hiking

✓【ULTRA LIGHTWEIGHT AND COMPACT】Naturehike Ultralight Compact Sleeping Bag weighs only 0.76 kg / 1.68 lbs and the compressed storage volume is only ф13x31 cm / 5*12 inches. The lightweight and compact design makes it easy to carry this sleeping bag anywhere you go. The sleeping bag can also be packed in the included carrying bag with compact straps
✓【ROOMY AND COMFORTABLE】At 80.7"L x 33.5"W, these sleeping bags are incredibly roomy for any adult or child of average size. It’s easy to get in, get out and turn around to find a comfortable sleeping position. The zipper stays closed, and the plush filling means you’ll sleep like a baby
✓【IDEAL FOR BACKPACKING & TRAVEL】Unlike other bulky sleeping bags, our sleeping bag is filled with premium 80 grams per square meter imitation silk cotton to save space and allow you to sleep easily after a day of hiking, trekking, traveling or other adventures
✓【MADE TO LAST WITH HIGH QUALITY MATERIALS AND CONSTRUCTION】this sleeping bag is made to stand up to years of real-life use, even with kids and teenagers. We’ve used durable fabric that washes incredibly well. The seams are double reinforced, and the zippers are rigorously tested
✓【AFTER-SALE GUARANTEE】Everyone has a different sensitivity to temperature, while with Naturehike sleeping pad will have a better warm effect. Naturehike promise: If you have any questions or concerns, please contact our amazing product support team, we support 30 days no reason to return or exchange

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ECOOPRO Warm Weather Sleeping Bag - Portable, Waterproof, Compact Lightweight, Comfort with Compression Sack - Great for Outdoor Camping, Backpacking & Hiking-83 L x 30" W Fits Adults

ECOOPRO Warm Weather Sleeping Bag - Portable, Waterproof, Compact Lightweight, Comfort with Compression Sack - Great for Outdoor Camping, Backpacking & Hiking-83 L x 30" W Fits Adults

✓【Ultra Comfort & Durable】Outer material: Nylon (Waterproof and Durable), Lining:100% Polyester (Breathable and skin-friendly), Premium Polyester keeps the temperature from 55 to 60℉ and provides a ultra-comfort sleep environment to people.
✓【Professional Design】The sleeping bag is waterproof and weatherproof. And the smooth zip closure makes it more convenient. Our sleeping bag measures 83"L x 30"W, the size fits for most people. It can accommodate an adult or two children
✓【Compact & Lightweight Easy To Carry】Unlike down sleeping bags, Our envelope sleeping bag is easy to roll up into the carrying sack and it can be compressed down to just 11" in height and 1.7lbs in weight. It's ideal for backpacking enthusiasts
✓【MULTIPURPOSE VERSATILITY】You can use our warm weather sleeping bag without sleeping bag liner in multiple weather conditions. It's a perfect sleeping bag for Outdoor camping trips, Boy Scouts or mountain hiking，also works as camping comforter
✓【Reliable Customer Service】If you have any quality problems, please send us an email and we will reply within 24 hours.

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Bessport Mummy Sleeping Bag | 15-45 ℉ Extreme 3-4 Season Sleeping Bag for Adults Cold Weather– Warm and Washable, for Hiking Traveling & Outdoor Activities

Bessport Mummy Sleeping Bag | 15-45 ℉ Extreme 3-4 Season Sleeping Bag for Adults Cold Weather– Warm and Washable, for Hiking Traveling & Outdoor Activities

✓PRACTICAL COMPACT AND LIGHTWEIGHT DESIGN: Our sleeping bag is large enough to fit an adult 6'1"-6'6". Girth of shoulder/ hip/ foot: 63", 50.3" 33" nice for you comfortable sleeping. When folded and store in its carrying bag, the lightweight sleeping bag is easy to carry (1.62kg/3.6lbs).
✓STAY WARM AND COZY DURING THE NIGHT: Thanks to our innovative heat retention technology, quilted construction and insulated footbox, this fluffy mummy sleeping bag will keeps you comfort from 50 to 68℉ or more, keeps temperature limits to 32℉or more. The adult mummy bag also has a drawstring hood that keeps the warm air in and the cold air out and away from your head and neck.
✓WATER REPELLENT & RIPSTOP FABRIC: 210T ripstop polyester shell protects against windy and wet weather Keep you warm even in wet weather conditions and prevent you from getting damp. Thanks to the ripstop fabric (double-layer)is durable and resists damage from stones, branches and other natural elements.
✓LONG LASTING DURABILITY from water repellent polyester shell and soft polyester taffeta liner with double SBS zippers and anti-snag slider, wide shoulder and large footbox, snag-free hook and loop fastener, drawstring, horizontal baffles, and stuff sack case for storage included. Comes in size up to 14.5in x 11in.
✓100% SATISFACTION GUARANTEE-we strongly stand behind the great craftsmanship of outdoor camping gear and provide the best customer experience possible. In case anything goes wrong, we will respond to your concerns within 24 hours. Order now!

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FARLAND Sleeping Bags for Adults Teens Kids with Compression Sack Portable and Lightweight for 3-4 Season Camping, Hiking,Waterproof, Backpacking and Outdoors

FARLAND Sleeping Bags for Adults Teens Kids with Compression Sack Portable and Lightweight for 3-4 Season Camping, Hiking,Waterproof, Backpacking and Outdoors

✓FEEL THE DIFFERENCE : Farland Super Comfortable Sleeping Bags are designed to ensure that after a tiring day of trekking, hiking, travel or any other exploration you can get a good and relaxing night's sleep.Roll Control Design makes folding quick and easy ,Zip two together for double the room
✓DESIGNED FOR COOL/COLD WEATHER : Our sleeping bags are designed for 20-62℉/-7-17℃. Moreover, these bags also have a waterproof, weather-resistant design to keep you warm even in extreme conditions and prevent you from any dampness - this is achieved through double-filled technology
✓SIZE : Envelope-Shape Sleeping Bag measures 87"L x 33.5"W, Mummy-Shape Sleeping Bag measures 87"L x 33.5"W and comfortably fits most campers up to five feet, 11 inches tall
✓Material : Outer Cover Material:290T Nylon,Waterproof and Breathable Fabrics;Lining Material:Polyester Pongee;Fill-Material: Polyester Fibre.its lightweight & compact design which is convenient to carry along for any outdoor adventures, and its ability to withstand extreme weather conditions – certainly the best sleeping bag for adventures
✓100% RISK-FREE SATISFACTION GUARANTEE : We also offer you 100% Risk-Free Satisfaction Guarantee to let you buy with confidence. However, we are quite sure that you will be super impressed with its ability to keep you warm in winter.

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TETON Sports Trailhead, 20 Degree Sleeping Bag; Lightweight, Warm Mummy Sleeping Bag, Camping, Backpacking, Hiking

TETON Sports Trailhead, 20 Degree Sleeping Bag; Lightweight, Warm Mummy Sleeping Bag, Camping, Backpacking, Hiking

✓FOR THE LOVE OF COMFORT: The innovative fill packs down without sacrificing performance; Roomy footbox; Zipper draft tube; Soft liner provides a comfortable night's sleep
✓NEVER ROLL YOUR SLEEPING BAG AGAIN: TETON provides a stuff sack for stuffing your sleeping bag; Start at the bottom and stuff the bag in.
✓LIGHTWEIGHT AND LOFTY: Lightweight for backpacking, hiking, and camping; Innovative microfiber insulation offers more loft and first-rate compressibility without sacrificing performance
✓SLEEP WARM: Fluff your sleeping bag and use an insulated camp pad to sleep warmer; Hang loops for long-term storage
✓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 of and back OUTDOORS with TETON Sports

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