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Warm Weather Sleeping Bags

The best warm weather (above 35°f) sleeping bags, reviewed and curated by the Trailspace community. The latest review was added on August 7, 2021. Stores' prices and availability are updated daily.

user rating: 5 of 5 (3)
Western Mountaineering Caribou MF Down
$385 - $395
user rating: 5 of 5 (3)
Wenzel Lodgepole 40° - 50° Sleeping Bag Synthetic
$28
user rating: 5 of 5 (2)
Western Mountaineering EverLite Down
$315 - $345
user rating: 4.5 of 5 (7)
Western Mountaineering HighLite Down
$370 - $390
user rating: 4.5 of 5 (4)
The North Face Wasatch 40 Synthetic
$109 - $118
user rating: 4.5 of 5 (3)
Western Mountaineering MityLite Down
$390 - $400
user rating: 4 of 5 (3)
Sea to Summit Traveller TrI 50°F Down
$209 - $339
user rating: 4 of 5 (2)
EMS Velocity 35 Synthetic
$140 - $146
user rating: 4 of 5 (1)
Sea to Summit Spark SP I Down
$249 - $339
user rating: 4 of 5 (1)
Therm-a-Rest Space Cowboy 45F Synthetic
$130 - $159
user rating: 3.5 of 5 (1)
Big Agnes McKinnis Down
$140
user rating: 3 of 5 (1)
Marmot NanoWave 35 Synthetic
$89 - $104
user rating: 5 of 5 (5)
Ferrino H.L. Micro Synthetic
user rating: 5 of 5 (4)
Marmot Atom Down
$279 MSRP
user rating: 5 of 5 (3)
REI Travel Down +45 Down
user rating: 5 of 5 (2)
Alpine Design 45-degree Micro Lite Mesa Rec Bag Synthetic
$30 MSRP
user rating: 5 of 5 (2)
Sea to Summit Micro MC II Down
user rating: 5 of 5 (2)
Sierra Designs Mobile Mummy 800 2-Season Down
$330 MSRP
 
user rating: 4.5 of 5 (3)
The Backside Backsider X-Fibre 35 Synthetic
user rating: 4.5 of 5 (3)
Mountain Hardwear Lamina 45° Synthetic
$120 MSRP
user rating: 4.5 of 5 (3)
Mountain Hardwear Lamina 35° Synthetic
$140 MSRP
user rating: 4.5 of 5 (3)
MontBell U.L. Super Spiral Down Hugger #5 Down
$244 MSRP
user rating: 5 of 5 (1)
Mountain Hardwear Lamina Z Spark 34 Synthetic
user rating: 5 of 5 (1)
Sierra Designs Backcountry Bed Duo SYN 1.5-Season Synthetic
user rating: 5 of 5 (1)
High Peak Sirius Synthetic
user rating: 4 of 5 (3)
Deuter DreamLite 500 Synthetic
$95 MSRP
user rating: 4 of 5 (3)
Marmot Aspen 40 Ultralight Down
user rating: 4.5 of 5 (1)
Montane Minimus Sleeping Bag Down
user rating: 4.5 of 5 (1)
Marmot Mavericks 40 Semi Rec Synthetic
$75 MSRP
user rating: 4.5 of 5 (1)
MontBell Super Spiral Burrow Bag #5 Synthetic
$139 MSRP
user rating: 4 of 5 (2)
Cumulus Panyam 450 Down
user rating: 4 of 5 (2)
Columbia Reactor 35 Mummy Synthetic
user rating: 4 of 5 (2)
The North Face Dolomite 40F/4C Synthetic
user rating: 4 of 5 (2)
Mountain Hardwear Phantom 45° Down
$250 MSRP
user rating: 4 of 5 (2)
Therm-a-Rest Ventra Down Comforter Down / Top Quilt
$200 MSRP
user rating: 4 of 5 (1)
Wiggy's Desert Synthetic
$152 MSRP
user rating: 4 of 5 (1)
Kelty Light Year XP 40 Synthetic
$110 MSRP
user rating: 4 of 5 (1)
L.L.Bean Goose Down Sleeping Bag Semi-Rectangular 35F Down
user rating: 4 of 5 (1)
Mountain Hardwear Ratio 45 Down
user rating: 4 of 5 (1)
VauDe Snow Cloud 350 43F Synthetic
user rating: 4 of 5 (1)
Peregrine Saker 35 Synthetic
 
user rating: 4 of 5 (1)
Alpine Design Microlite Terrain 45 Degree Mummy Synthetic
user rating: 4 of 5 (1)
Sierra Designs Forty Winks Synthetic
user rating: 4 of 5 (1)
Outbound Bike & Hike +44° Synthetic
 
user rating: 3.5 of 5 (2)
PHD Minimus Down
user rating: 3.5 of 5 (1)
Mountain Equipment Glacier 500 Down
user rating: 3.5 of 5 (1)
Mountain Hardwear Switch 35° Synthetic
$120 MSRP
user rating: 3.5 of 5 (1)
Etowah Outfitters 50 Degree Down Sleeping Bag Down
$79 MSRP

Recent Warm Weather (above 35°F) Sleeping Bag Reviews

rated 4 of 5 stars
Sea to Summit Traveller TrI 50°F

A versatile and quality piece of sleeping gear that can be used in many different ways and provide warmth even slightly bellow the rated temperatures. Good option for lightweight backpackers campers and travelers who sleep in various conditions and settings (hammock, tent, hostels, etc.). Context I live in a tropical country and temperatures here hardly ever go below 30°F, even at the height of the winter and in the wilderness and rural areas where it’s always the coldest. Therefore, I can do… Full review

rated 5 of 5 stars
Western Mountaineering EverLite

The Western Mountaineering EverLite is a lightweight warm-weather down sleeping bag. A versatile piece of gear, it can also be used as an inner bag or an overquilt. I bought my Western Mountaineering EverLite sleeping bag about 3 years ago as part of my 4lb summer bag/pad/tent setup, and I’m thoroughly impressed with it. It keeps me warm below the 45°F rated temp, packs down way smaller than I’ve needed, and the tapered design makes it very versatile—it can be used as a sleeping bag, blanket,… Full review

rated 4 of 5 stars
Wenzel Monterey 30°-40° Hooded Sleeping Bag

A good value sleeping bag that stays warm. Good for 2-3 seasons. For the price, this is a good bag. Well crafted, and very warm. The fleece inside is a nice touch making you feel instantly warm when you get inside. At 6 pounds this isn't going to be someone's backpacking bag, so Wenzel wisely went the other way adding features like a leverage loop on the stuff sack to help get the sleeping bag in and out, a big hood (great if you're a little claustrophobic in a smaller bag), elastic bands to keep… Full review

rated 5 of 5 stars
Wenzel Lodgepole 40° - 50° Sleeping Bag

High quality sleeping bag. The sleeping bag is comfortable, lightweight, and kept me warm. Full review

rated 5 of 5 stars
Wenzel Lodgepole 40° - 50° Sleeping Bag

I cannot tell you how happy I am to have this new sleeping bag! I’m now sleeping so much better while camping. I love having the extra room!! After sleeping in a mummy bag for a few years, I am So Excited to be back in comfort. I also love how soft the material is too.  Full review

rated 4.5 of 5 stars
Wenzel Lodgepole 40° - 50° Sleeping Bag

The Lodgepole's roomy, oversized fit will allow you to sprawl out while keeping you toasty between 40-50 degrees with its quick-warming brushed liner, cozy fleece collar, and fleece-lined footbox. I'm 5'3" and I am a stomach sleeper. I like to have a knee up and in this bag, I can actually put my knee up. This is the biggest plus about this sleeping bag. The fleece collar is great too. I used this in my camper with the ac on 66° so I was able to use it and not sweat to death. The zipper worked… Full review

rated 5 of 5 stars
Sea to Summit Traveller TrI 50°F

Enables me to go with a 40-liter pack for four days and three nights in summer. With this bag, I can get my summer sleep/shelter system down to around 4 1/2 pounds. The bag compressed (15 oz) in its Ultra sil compression sack (blue) on left with a Sea to Summit Ultralight Pillow (2 oz) in the sack also. Next to it is the Marmot Tungsten UL 1  (pole bag, tent body, fly in an ultra sil (yellow) and stake bag (2 lbs 9 oz), and the Nemo Tensor mummy sleeping pad in it's stuff sack (15 oz) on the far… Full review

rated 5 of 5 stars
Alpine Design 45-degree Micro Lite Mesa Rec Bag

Great addition to one's warm weather gear kit. $4 at Amvets seconds store. Tried to find Alpine Design on net, nothing! Used with no clothing to 45° F.; works well. With base layer, would go much lower.  Wondering what the fabric and materials used are? The insulation factor is pretty good, must be some kind of fabric magic at work. Wonder what Alpine Design has to say about that? Anyone know how to locate that company? Full review

rated 4.5 of 5 stars
Big Agnes Horse Thief SL 35°

Love this thing. I've had this for several years with use along the lakeshore of Pictured Rocks and temps in high 30's. I wish they still made this bag so I could buy it for my kids now that they are backpacking also. To answer a couple of questions that may resolve issues posted up years earlier than this one: The pillow sack goes inside with you, not hanging off the edge. I believe some of the cold feeling people may be getting is from not using an insulated air mattress; I made that mistake also… Full review