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 January 29, 2020. Stores' prices and availability are updated daily.

Recent 3-Season Down Sleeping Bag Reviews

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

rated 4 of 5 stars
Mont Helium 300 -1ºC

Quality lightweight sleeping bag. Best for warm sleepers and can be used below its -1°C rating sleeping in thermals and using a bag liner. Perfect three-season bag in Australia. I bought this to replace an old Paddy Pallin bag and have used it three times. The main reason for the purchase was the small size, light weight, and claimed warmth—the Mont is about 1/3 the  size and weight of my old bag. The bag is used for bush camping with most of my walking done in winter within three to four hours… Full review

rated 4.5 of 5 stars
Mont Helium 300 -1ºC

The Mont Helium 300 is a fantastic, lightweight, three-season bag. It's very compressible and light for such a warm bag. This bag has a full hood and with good layering you can take this into a mild winter's night, and contains 300g of 800+ loft white down. The Mont Helium 300 is my three-season bag for wilderness guiding in Tasmania. I am typically a warm sleeper, but with the temperature swings we are prone to here on the island, it is good to have a versatile sleeping bag. Construction:I own… Full review

rated 5 of 5 stars
Katabatic Gear Palisade

Fantastic! I used an unzipped regular Marmot Spire down bag for years, and by necessity, it was a bit overkill on warmth. The hood was often in my face, even though I bought it to match the side I tend to sleep on.  This quilt is a way better concept. No hood in the face, down on top, instead of compressed below (or in my case, wasted in unnecessary width, when spread out). I've been using the quilt for three years, many nights per year. It's super well made. Very cozy at its rated temp, when… Full review

rated 5 of 5 stars
The North Face Superlight 0

When I bought my NFSL in 1974 it carried a lifetime warranty from NF. I sent the bag to NF in the late '70s for repair and it was returned cleaned, refilled, and repaired. Amazing! I still have this bag and only "retired" it this year. A 45-year run for a $106 investment. Hard to beat value that has been one of the best pieces of gear I've owned.  I've always stored this bag in a large laundry bag to help keep the loft high. At the end of the season I would wash the bag by hand in a bathtub. Since… Full review

user rating: 5 of 5 (7)
Western Mountaineering VersaLite
$590 - $605
user rating: 5 of 5 (4)
Western Mountaineering Apache MF
$550 - $580
user rating: 5 of 5 (4)
Marmot Lithium
$374 - $533
user rating: 5 of 5 (4)
Valandré Shocking Blue
$577 - $719
user rating: 5 of 5 (3)
Marmot Angel Fire
$178 - $209
user rating: 4.5 of 5 (18)
Kelty Cosmic 20
$142 - $189
user rating: 4.5 of 5 (8)
Marmot Never Summer
$209 - $323
user rating: 5 of 5 (2)
NEMO Disco 30
$221 - $279
user rating: 4.5 of 5 (5)
Marmot Teton 15
$25 - $298
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
$187 - $249
user rating: 4.5 of 5 (3)
REI Igneo 25
$139
user rating: 4.5 of 5 (2)
Sierra Designs Cloud 800 / 20 Degree
$300 - $349
user rating: 5 of 5 (1)
Marmot Phase 30
$299 - $446
user rating: 5 of 5 (1)
Sierra Designs Nitro 800 / 20 Degree
$337 - $379
user rating: 5 of 5 (1)
Sea to Summit Trek TK II
$195 - $319
user rating: 5 of 5 (1)
Therm-a-Rest Parsec 20F
$40 - $419
user rating: 5 of 5 (1)
Sierra Designs Cloud 800/20 Degree
$300 - $329
user rating: 5 of 5 (1)
Western Mountaineering Antelope MF
$625 - $665
user rating: 4 of 5 (26)
Marmot Sawtooth 15
$179 - $299
user rating: 4 of 5 (20)
Marmot Helium
$299 - $431
user rating: 4 of 5 (10)
Marmot Hydrogen
$247 - $362
user rating: 4 of 5 (8)
Marmot Never Winter
$140 - $235
user rating: 4 of 5 (8)
Western Mountaineering UltraLite
$485 - $540
user rating: 4 of 5 (7)
Mountain Hardwear Phantom 15°
$510 - $550
user rating: 4 of 5 (7)
Western Mountaineering SummerLite
$410 - $440
user rating: 4 of 5 (3)
The North Face Gold Kazoo
$167 - $239
user rating: 4.5 of 5 (1)
Sierra Designs Nitro 800 / 0 Degree
$420
user rating: 4.5 of 5 (1)
Western Mountaineering Antelope GWS
$745 - $790
user rating: 4 of 5 (1)
Rab Ascent 700
$236 - $315
user rating: 4 of 5 (1)
Big Agnes Diamond Park 15
$350
user rating: 4 of 5 (1)
NEMO Sonic 0
$425 - $549
user rating: 4 of 5 (1)
Sea to Summit Talus TS2
$332 - $338
user rating: 3.5 of 5 (21)
The North Face Blue Kazoo
$196 - $299
user rating: 3.5 of 5 (2)
Big Agnes Roxy Ann 15°
$145 - $236
user rating: 3.5 of 5 (1)
The North Face Inferno 0F/-18C
$363 - $539
user rating: 3 of 5 (3)
REI Downtime 0
$239
user rating: 3 of 5 (1)
Sierra Designs Backcountry Bed 700 / 20 Degree
$230 - $339
Big Agnes Torchlight UL 20
$300 - $419
Sierra Designs Nitro Quilt 800 / 20 Degree Top Quilt / Down
$255 - $279
user rating: 5 of 5 (16)
Marmot Pinnacle
$349 MSRP
user rating: 5 of 5 (12)
Western Mountaineering MegaLite
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
user rating: 5 of 5 (3)
Feathered Friends Lark
$439 MSRP
user rating: 5 of 5 (3)
Sierra Designs Nitro 15
$380 MSRP
user rating: 5 of 5 (3)
Feathered Friends Snowbunting
$599 MSRP
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