10 Reviews: Best Sleeping Bag for Warm Weather (Apr 2024)

Snugpak’s Softie Sleeping Bags use space-age technology in the shape of a highly permeable metalized barrier dubbed Reflectatherm (Softie 3 and Antarctica only) to provide a temperature rating that exceeds expectations. The Softie Premier filling is extremely insulating, retaining heat, and providing maximum comfort. The anti-snag zip has a full-length baffle, the mummy-style form is designed for warmth and comfort, and the quilted, snug fit hood has an adjustable cord, ensuring a pleasant night’s sleep even when the temperature drops. A Snuggy Pillow is included with each bag.

The Sea To Summit Spark Sp I is a superlight sleeping bag for hot climes that packs down so compact you won’t think it’s a sleeping bag at all. The Spark Sp I is about as minimalist as it gets, and it’s small enough to use as a sleeping bag liner on winter adventures. On humid nights in the tent, the ULTRA-DRY Down and Pertex shell assist to repel moisture and keep you warm. The Spark Sp I may be the finest warm weather sleeping bag for you if you’re seeking the lightest alternative.

"This was amazing - I added it to my 35 deg. sleeping bag and nights were in the 20s and I was comfortable (and I get cold EASILY). I like the cinch cord at the top for fit, and it can absolutely serve as a summer or warm weather sleeping bag. Light weight and packs down easily, too."

by Whitney Cooper

This polyester-made Mummy-style sleeping bag with a temperature rating of 55 degrees is ideal for backpacking and other activities that take place in the great outdoors. It features SpiraFil high-loft insulation, which provides optimal warmth and durability, and features a temperature rating of 55 degrees. Full-length, locking, two-way YKK zipper with an EN rating that indicates the wearer will be comfortable in temperatures as low as approximately 55 degrees Fahrenheit.

"I love everything about this bag except the color! It’s super lightweight, soft and comfortable, packs tiny, and is affordable. The comfort rating is 60 degrees F, and I usually get really cold, so I was worried, but I camped at altitude at a low of 45 degrees and it was fine! I was in a tent with 1 other person, plus I have a very warm..."

by Amazon Customer

The Sierra Designs DriDown Backcountry Bed 600 Sleeping Bag features an integrated comforter that helps you to be warm while also allowing you to open the top for air. Sierra Designs sleeping bags are as comfortable as they appear, with enough upper body space to sleep on your back, side, or front — or a combination of all three on restless nights! You can go even lighter with the 2-season version of this bag, but your options for where you can use it are limited. For unpredictably warm weather, this is a fantastic 3-season sleeping bag.

".. Love the warmth for weight ratio and that it is zipperless. I always hate how the zipper scratches your neck. Also, a must for me, you can easily put your feet out. Love It!!!!!!!"

by Cathy Matel

The NEMO Salsa is a three-season spoon-shaped sleeping bag made for backpacking in hotter areas. If you sleep sideways, the shape is a mummy/rectangular hybrid that provides more room for your knees and elbows. This is a comfortable bag to not only sleep in but also to laze around in, thanks to the stretch construction and stitching. The 650 FP down from NEMO is extremely light and will keep you warm on cold evenings while also regulating your heat on hot nights. An adjustable hood, pillow hole, and zippered valuables pocket are among the other features.

"Great bag, I have the large size, very comfortable with lots of room to toss and turn. I’m 6’ 3” 245 pounds and this is the only bag I have owned that doesn’t make me feel claustrophobic! Great weight and size for serious back packing."

by Michael Adkins

The One Bag is a multi-purpose sleeping bag. It’s a bit of a misnomer because it’s not just one bag. Instead, it consists of one lower half and two detachable upper halves with temperature ratings of 5, 20, and 40 degrees Fahrenheit. However, this is a well-designed bag with every element working properly. The bag is spacious in the interior, making it easy to use. The bag’s cost is kept low thanks to the synthetic stuffing. Down filling the bag would have made it lighter, but it would have increased the price. This bag’s versatility at a reasonable price makes it one of the best buys you can make.

" So warm and cozy. I love the versatility of this bag, I brought it to Joshua Tree expecting it to be cold and was able to remove a layer when it turned out to be a bit warmer. One bag to rule them all!"

by Angela

Another popular sleeping bag for warm-weather camping is the Nemo Forte 35. The Forte is a good value option because it has a reasonable price and good features. The Forte is exceptionally comfortable and has a long-lasting build. The Forte is either spoon-shaped or hourglass-shaped. The shape is open and spacious. It is looser in every way than a traditional mummy – shoulders, hips, and feet. Thermogrills for ventilation is also included in the Forte, extending the bag’s temperature range.

"This bag is exactly what I wanted. super warm when needed and can air out when needed as well. I like how small it packs down."

by TTGG

REI’s sleeping bags are gaining a lot of acclaims. They have a variety of wonderful sleeping bags, and one of them is the REI Co-op Helio Sack 50°F. The shell is made of recycled polyester and is quite robust. One long and one short zipper runs the length of the bag. The lengthy zipper totally unzips to reveal a quilt. The short zipper doubles as an armhole and a vent to prevent overheating during the night. The sleeping bag is semi-rectangular in shape or has a relaxed mummy shape to it. It has enough space inside to not feel cramped. The backpack also packs exceptionally small and is ideal for light travel.

"I have had the sleeping bag five years and camped with it multiple times. I have used it all the way down to 30° but it holds up well to its 50° rating.
It works well with a liner and is super light so it washes up and packs up very easily..."

by CrashGordon

The Lost Dog is a hoodless sleeping bag that may be used as a primary sleeping bag in warm weather or as a backup in cold weather. It has a sleeping pad sleeve and recycled synthetic insulation. The synthetic insulation in the bag performs better in rainy situations, delivering warmth even when damp, something down cannot do. This synthetic insulation is made from 100 percent post-consumer recycled polyester, making it environmentally friendly.

"I?m a hammock camper and this bag is awesome for summer nights...Very durable, my dogs have laid on it, I?ve gotten it dirty and it has held up to it all. Zipper is nice and big and doesn?t get snagged very easily. When it does it?s very easy to pull out without damage. Highly recommend"

by Phil S

The REI Co-op Magma 30 is another REI inclusion on this list, although it is a higher-end alternative than the Helio Sack 50 listed above. However, when compared to other bags with equal performance and features, the Magma is still a better value sleeping bag. The Magma is filled with 9.7 ounces of 850 power goose down. This fill is of great quality and, despite its little weight, gives excellent warmth. The Magma weighs 1.2 pounds, which is surprisingly light for the amount of warmth it gives.

"Finally got to take this out backpacking i really appreciated the weight savings on the 17 mile hike into camp. The day started at 70 degrees and dipped down to 40 in the early morning. I was warm ..."

by Kevo