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3-Season Down Sleeping Bags

The best 3-season down 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 (12)
Western Mountaineering MegaLite
$470
user rating: 5 of 5 (7)
Western Mountaineering VersaLite
$590
user rating: 5 of 5 (4)
Western Mountaineering Apache MF
$550 - $580
user rating: 5 of 5 (4)
EMS Mountain Light 20
$150 - $154
user rating: 5 of 5 (4)
Marmot Lithium
$512 - $533
user rating: 5 of 5 (4)
Valandré Shocking Blue
$770 - $849
user rating: 5 of 5 (3)
Marmot Angel Fire
$239 - $319
user rating: 4.5 of 5 (18)
Kelty Cosmic 20
$170 - $189
user rating: 4.5 of 5 (8)
Marmot Never Summer
$301 - $324
user rating: 5 of 5 (2)
NEMO Disco 30
$260 - $279
user rating: 4.5 of 5 (5)
Marmot Teton 15
$33 - $322
user rating: 4.5 of 5 (4)
REI Igneo 25
$289
user rating: 4.5 of 5 (4)
Mountain Hardwear Phantom 0°
$610 - $790
user rating: 4.5 of 5 (4)
Western Mountaineering AlpinLite
$570 - $615
user rating: 4.5 of 5 (3)
Kelty Cosmic 0
$185 - $249
user rating: 4.5 of 5 (2)
Sierra Designs Cloud 800 / 20 Degree
$320 - $419
user rating: 5 of 5 (1)
Marmot Phase 30
$299 - $446
user rating: 5 of 5 (1)
Western Mountaineering Tamarak
$285
user rating: 5 of 5 (1)
Sierra Designs Nitro 800 / 20 Degree
$320 - $469
user rating: 5 of 5 (1)
Sea to Summit Trek TK II
$299 - $329
user rating: 5 of 5 (1)
The North Face Dolomite Double Down 20F/-7C
$180
user rating: 5 of 5 (1)
Therm-a-Rest Parsec 20F
$370 - $419
user rating: 5 of 5 (1)
Sierra Designs Cloud 800/20 Degree
$400
user rating: 5 of 5 (1)
Big Agnes Torchlight UL 20
$400 - $419
user rating: 5 of 5 (1)
Western Mountaineering Antelope MF
$625
user rating: 4 of 5 (26)
Marmot Sawtooth 15
$239 - $300
user rating: 4 of 5 (20)
Marmot Helium
$399 - $431
user rating: 4 of 5 (10)
Marmot Hydrogen
$329 - $362
user rating: 4 of 5 (8)
Marmot Never Winter
$199 - $235
user rating: 4 of 5 (8)
Western Mountaineering UltraLite
$485 - $540
user rating: 4 of 5 (8)
Western Mountaineering SummerLite
$410 - $440
user rating: 4 of 5 (7)
Mountain Hardwear Phantom 15°
$510 - $550
user rating: 4 of 5 (3)
The North Face Gold Kazoo
$240 - $249
user rating: 4.5 of 5 (1)
Western Mountaineering Antelope GWS
$745 - $790
user rating: 4 of 5 (1)
Rab Ascent 700
$315 - $329
user rating: 4 of 5 (1)
NEMO Sonic 0
$480 - $619
user rating: 4 of 5 (1)
Sea to Summit Talus TS2
$300 - $338
user rating: 3.5 of 5 (21)
The North Face Blue Kazoo
$280 - $309
user rating: 3.5 of 5 (1)
Big Agnes King Solomon 15°
$430
user rating: 3.5 of 5 (1)
The North Face Inferno 0F/-18C
$519 - $539
user rating: 3 of 5 (3)
REI Downtime 0
$239
Sierra Designs Nitro 800 / 0 Degree
$360
Sierra Designs Nitro Quilt 800 / 20 Degree Top Quilt / Down
$280 - $339
user rating: 5 of 5 (16)
Marmot Pinnacle
$349 MSRP
user rating: 5 of 5 (10)
Marmot Arroyo
$269 MSRP
user rating: 5 of 5 (5)
NEMO Strato Loft 25
$370 MSRP
user rating: 5 of 5 (5)
Sierra Designs Backcountry Bed 800 3-Season
$400 MSRP
user rating: 5 of 5 (4)
MontBell U.L. Spiral Down Hugger #1
$379 MSRP
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Recent 3-Season Down Sleeping Bag Reviews

rated 4.5 of 5 stars
REI Igneo 25

I’ve gotten through some very cold nights at higher altitudes by wearing cold weather gear and a bag liner inside my Igneo 25 long. Good value and quality with some very nice design features for the price. The light weight and compressibility is outstanding. After two years it is still my “go to” when heading out with a backpack. Thumbs up! Full review

rated 4 of 5 stars
Western Mountaineering SummerLite

Used this for a month in the woods for military training exercises. It's great for sleeping outdoors even if you don't have a cushion or sleeping pad. I got one for a military training exercise since the army ones aren't as comfortable. I didn't mind the price for comfort, however, it doesn't do well in wet conditions. Moisture still seeks in and gets a weird smell. If you're not going to be in a wet area, it's perfect. The Summerlite rips TOO easily, I found a gap on the back after sleeping on… Full review

rated 4 of 5 stars
Big Agnes Lost Ranger 15°

Great bag and a great price, but not a 15 degree bag for us! (Roxy Ann included) Temperature ratings are very personal and depend a lot on how much a heat a person produces and puts off generally; also what state of rest a person is in when they use the sleeping bag, and how much they've had to eat can play a role in sleeping comfort when you are required to make your own heat. I have used this bag and its accomplice the Roxy Ann (my gf has) for over two years and probably 50+ nights (100 nights… Full review

rated 5 of 5 stars
Big Agnes Torchlight UL 20

The Torchlight UL 20 is a fantastically cozy and versatile backpacking mummy bag. Super spacious when you want, but snug when you want that, with customizable zipper options. The ultralight 850 fill power Down-Tek makes it a great choice for ounce-counting backpackers. I have been using a Mont-Bell UL SS Down Hugger #4 sleeping bag for about ten years. It has served me well, being very lightweight (1.5 lbs), and warm enough most of the time (rated 34°). It also has stretchy elastic baffle stitching,… Full review

rated 5 of 5 stars
Outdoor Vitals StormLoft 30-Degree Down TopQuilt

The 30 Degree Down TopQuilt is one of the most affordable, lightweight and reliable sleeping bag options on the market. Weighing just 18 ounces, it's built like a workhorse but performs in an elegant way. If you’re looking for an affordable-yet-reliable quilt for backpacking, look no further. Outdoor Vitals’ 30 Degree Down TopQuilt is unmatched in its efficiency. The 800fp quilt is compressible beyond relief, warm when it counts and it still costs a fraction of competitive products.  The 30… Full review

rated 4 of 5 stars
Big Agnes Diamond Park 15

Big Agnes calls the Diamond Park 15 a sleeping bag, but it really isn't, except for sometimes when it is. It is more of a flexible sleep component system that converts from a back country bed style unit into a full featured, standalone quilt or even a mummy style bag with the optional Park Bag Wedgie Expander. Great for those who want flexibility without having to purchase a quiver of bags and quilts. The Big Agnes Diamond Park 15 uses 600 fill DownTek for insulation and converts from bed, to quilt,… Full review

rated 4 of 5 stars
Western Mountaineering SummerLite

I have tested WM Summerlite in the Colorado Rockies (say, above 9000 feet), where you can expect frosty nights at any time. I would not recommend to venture out, even in midsummer, with less than a 20°F bag. BUT 32°F Summerlite did quite well in keeping me comfortable in July. I was dressed very warmly, ofc. (comfortable is the right word here, not warm). I guess this is because of the comtinious baffles; there's an unbroken four-inch layer of down separating the two nylon shell fabrics. This… Full review

rated 3 of 5 stars
The North Face Blue Kazoo

Lightweight and comfortable, packs small. I bought this bag to replace my VERY old (one of the originals) Blue Kazoo bag, which had weathered the Long Trail, PCT, and CDT, along with many shorter adventures. It was a trusty friend. I found the new one to be adequate, but nothing great for the price. Has some nice features, listed in the pros, but overall I found it to be less than I expected given the quality of the original and the price. I had big cold spots when it went below about 40 degrees,… Full review

rated 4.5 of 5 stars
Mont Highland Hydronaute XT -10ºC

The Mont Highland is a lightweight alpine bag for cold weather. This bag has been excellent for the wet-cold nights in the Tasmanian mountains and the dry-freezing nights in the Himalaya. It is well designed and great for those trying to cut weight without skimping on warmth. WarmthI have found that this bag lacks any sort of draft or cold-spot. Mont really went overboard with the double draft tube and lack of foot zip. I only bust this bag out when it's going to reach freezing or below. The "toaster… Full review