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Warm Weather Down Sleeping Bags

The best warm weather down sleeping bags, reviewed and curated by the Trailspace community. The latest review was added on March 17, 2022. Stores' prices and availability are updated daily.

user rating: 5 of 5 (3)
Western Mountaineering Caribou MF
$410
user rating: 5 of 5 (3)
Western Mountaineering EverLite
$350 - $370
user rating: 4.5 of 5 (7)
Western Mountaineering HighLite
$395
user rating: 4.5 of 5 (3)
Western Mountaineering MityLite
$390 - $430
user rating: 4 of 5 (3)
Sea to Summit Traveller TrI 50°F
$199 - $339
user rating: 4 of 5 (1)
Sea to Summit Spark SP I
$269 - $339
user rating: 3.5 of 5 (1)
Big Agnes McKinnis
$150
Sierra Designs Nitro Quilt 800 / 35 Degree Top Quilt / Down
$175
user rating: 5 of 5 (3)
REI Travel Down +45
user rating: 5 of 5 (2)
Sea to Summit Micro MC II
user rating: 5 of 5 (2)
Sierra Designs Mobile Mummy 800 2-Season
$330 MSRP
user rating: 4.5 of 5 (3)
MontBell U.L. Super Spiral Down Hugger #5
$244 MSRP
user rating: 4.5 of 5 (1)
Montane Minimus Sleeping Bag
user rating: 4 of 5 (2)
Cumulus Panyam 450
user rating: 4 of 5 (2)
Mountain Hardwear Phantom 45°
$250 MSRP
user rating: 4 of 5 (2)
Therm-a-Rest Ventra Down Comforter Warm Weather Down Sleeping Bag / Top Quilt
$200 MSRP
 
user rating: 4 of 5 (1)
L.L.Bean Goose Down Sleeping Bag Semi-Rectangular 35F
user rating: 4 of 5 (1)
Mountain Hardwear Ratio 45
 
user rating: 3.5 of 5 (2)
PHD Minimus
user rating: 3.5 of 5 (1)
Mountain Equipment Glacier 500
user rating: 3.5 of 5 (1)
Etowah Outfitters 50 Degree Down Sleeping Bag
$79 MSRP
user rating: 3 of 5 (7)
Big Agnes Horse Thief SL 35°
$370 MSRP
user rating: 2.5 of 5 (1)
MontBell Alpine Burrow Bag Thermal Sheet
$99 MSRP
user rating: 5 of 5 (4)
Marmot Atom
$279 MSRP
discontinued
 
user rating: 5 of 5 (3)
Western Mountaineering Iroquois
discontinued
user rating: 5 of 5 (2)
Mountain Hardwear Down Upgrade
discontinued
user rating: 5 of 5 (2)
REI Kilo Flash +40
discontinued
user rating: 4.5 of 5 (4)
MontBell U.L. Super Stretch Down Hugger #4
discontinued
user rating: 4 of 5 (3)
Lafuma One Kilo
discontinued
user rating: 4 of 5 (3)
Marmot Aspen 40 Ultralight
discontinued
 
user rating: 4 of 5 (2)
The North Face Lightrider
discontinued
user rating: 4 of 5 (1)
Kelty Galactic 50
discontinued
user rating: 4 of 5 (1)
MontBell U.L. Alpine Down Hugger Thermal Sheets
discontinued
user rating: 3.5 of 5 (5)
Lafuma Warm'n Light 600
discontinued

In order to show you the most useful information, we have omitted some products.

Recent Warm Weather Down Sleeping Bag Reviews

rated 5 of 5 stars
Western Mountaineering EverLite

Excellent choice for overnight bivy summer summits, bikepacking etc. Best weight-to-warmth ratio. Have 6.6ft version.Used on Mt Moran in summer, multi-day trip to Big Horns in summer, sleeping in the car in the fall while driving cross country. On all occasions, I slept in dedicated long underwear, long-sleeve top, and wool socks. Haven't had any condensation issues. Haven't had the need to wash (sleeping in dedicated long underwear, top, and socks prevented stinking up the bag). I am 5 ft 9 in… Full review

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 in slightly-bellow-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 colder. Therefore, I can do fine… 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 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 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 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 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

rated 4 of 5 stars
Big Agnes Horse Thief SL 35°

A lightweight hoodless option that lightens the load in your summer pack. Recommended for weather where the temps hover around or above 50°F. Warmth: The bag is rated at 35°F. The bag does a fine job in temperatures above 50°F. Mid 40's and below, the comfort level starts to drop off quick. In temperate climates, like the one here in Minnesota, you can judge the weather well enough to make a pretty good estimate of whether you'll be in comfort range.  Fit and Comfort: I must say, the bag is… Full review

rated 4 of 5 stars
Mountain Hardwear Ratio 45

Very good warm weather bag. It packs down small, and has good loft for a lightweight summer bag. The zipper only allows it to be used as a quilt for one, as it doesn't extend to the bottom of the bag. Purchased this bag deeply discounted at $100; the regular retails for $199 and the long for $219. As of June 2017 it is still available with big discounts on many websites. I sleep warm, so this bag allows me to sleep comfortably down to 40 degrees in wool 150 weight base layer shirt and long johns. Full review