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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 September 18, 2020. Stores' prices and availability are updated daily.

user rating: 5 of 5 (3)
Western Mountaineering Caribou MF Down
$375 - $395
user rating: 4.5 of 5 (7)
Western Mountaineering HighLite Down
$360 - $380
user rating: 4.5 of 5 (4)
The North Face Wasatch 40 Synthetic
$109
user rating: 4.5 of 5 (3)
Western Mountaineering MityLite Down
$390
user rating: 5 of 5 (1)
Mountain Hardwear Lamina Z Spark 34 Synthetic
$134
user rating: 5 of 5 (1)
Western Mountaineering EverLite Down
$315 - $335
user rating: 4 of 5 (2)
Sea to Summit Traveller TrI 50°F Down
$209 - $339
user rating: 4 of 5 (2)
The North Face Dolomite 40F/4C Synthetic
$89
user rating: 4 of 5 (2)
EMS Velocity 35 Synthetic
$139 - $146
user rating: 4 of 5 (1)
Sea to Summit Spark SP I Down
$249 - $339
user rating: 4 of 5 (1)
Peregrine Saker 35 Synthetic
$68
user rating: 4 of 5 (1)
Sierra Designs Forty Winks Synthetic
$115
user rating: 4 of 5 (1)
Therm-a-Rest Space Cowboy 45F Synthetic
$129 - $159
user rating: 3.5 of 5 (1)
Big Agnes McKinnis Down
$140
user rating: 3 of 5 (1)
Marmot NanoWave 35 Synthetic
$89 - $98
Sierra Designs Nitro Quilt 800 / 35 Degree Top Quilt / Down
$290
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)
Wenzel Lodgepole 40° - 50° Sleeping Bag Synthetic
$35 MSRP
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)
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)
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)
Alpine Design Microlite Terrain 45 Degree Mummy 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

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

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

rated 4 of 5 stars
Therm-a-Rest Space Cowboy 45F

The Space Cowboy is a nicely featured 45˚F/7˚C sleeping bag for those seeking a highly compressible, lightweight synthetic sleeping bag option. This bag is readily stuffed into pack crevices or its supplied stuff sack, taking up less room at lower weight than a number of similarly rated bags (albeit at higher price), while providing mummy bag coziness with a draft tube and draft collar for unseasonably cool nights. In the American South where I live, we’ve had the first few flashes of summer-like… Full review

rated 3.5 of 5 stars
Big Agnes McKinnis

The Big Agnes McKinnis is a lightweight, down insulated sleeping bag designed for minimalist trips, bike packing, or any time some extra insulation is needed within your sleep system. Versatile enough to go from your warm weather summer bag to a winter liner, I believe the McKinnis would be an excellent addition to many people's kits. The main point I’d like to see redesigned is the hood shape as it currently doesn’t add much function. WARMTH No temperature rating is given for the McKinnis so… Full review

rated 0.5 of 5 stars
Ozark Trail Sleeping Bag

This is the most sh*t sleeping bag I have ever used in my life. There is absolutely no way to fix the damn chain. Ozark Trail, make better sleeping bags! Full review

rated 3.5 of 5 stars
Etowah Outfitters 50 Degree Down Sleeping Bag

An inexpensive, lightweight, rectangular, summerweight bag that can open up to work as a quilt for two. Too bad it doesn't come in long. I sleep warm. In tents, huts, and European hotels (where bedding usually consists of a bottom sheet and a quilt in a quilt cover—that's all), I have suffered through many a night under a quilt or in a sleeping bag that is too warm, sometimes waking up soaked in sweat while others seem to be perfectly comfortable in the same or even more insulation. My wife, not… Full review