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 October 9, 2018. Stores' prices and availability are updated daily.

Recent 3-Season Down Sleeping Bag Reviews

Sierra Designs Cloud 800 / 20 Degree

rated 4.5 of 5 stars A bag with the magic of 800 fill DriDown for about $100 less than the other bags in the same weight category. Sierra Designs Cloud 20 800 fill down Regular: 1 lb 13 oz In the mountains you need your gear to be as light as possible and still able to do its job. Being light reduces fatigue and lets you move through hazard zones faster thereby reducing your exposure to risk. In short, light is right. Another philosophy is summarized by, “pack light, freeze at night,” the idea that comfort and good… Full review

The North Face Hightail 3S 15

rated 5 of 5 stars Perfect. A great find after lots of research. I did a lot of research on bags of this temperature rating that were under one kilo. This bag replaced a much heavier sleeping bag and it seems every bit as warm. I have not had it down to the rated 15 deg. F, but I believe with long johns and good insulation under it, it would be satisfactory for me at 15 deg. F.  (I am a warm sleeper, by the way). I have had lots of well made mummy bags and I find this one is a perfect fit for me. Others have been… Full review

The North Face Men's Blue Kazoo

rated 2 of 5 stars High expectations, poor performance. Bought this North Face bag at a local REI. I used it for several years in a variety of settings, from indoor use to summer hiking, fall, even some winter hikes. My biggest complaint is its temp rating. My bag says it is a 15-degree rating. YES, I always stored it loose, never compressed. The bag was well taken care of. After several nights over several different outings I was sure to bring extra clothes to sleep in if I knew temps would drop below freezing. This… Full review

Hyke & Byke Eolus 800 Fill Power 15°F

rated 4 of 5 stars The best bang for the bucks. I bought the regular size black/orange Eolus 15 and I'm impressed with the bag. It was shipped fast and delivered boxed in the compression stuff sack, so it needed to be fluffed. I put it in the dryer on low for 20 minutes with my dedicated tennis balls and, voila! The fabric has a very light and silky hand. Using the zipper pull makes for snagless opening and closing of the YKK self-repairing two way zipper. Seams are clean and flawless. I like the ability to shift… Full review

Sierra Designs Nitro 800 / 0 Degree

rated 4.5 of 5 stars The Sierra Designs Nitro 800, 0-degree women’s sleeping bag is a lightweight, warm bag that compresses to a small size and is comfortable to sleep in. I’ve been testing the Sierra Designs Nitro 800 sleeping bag all summer and can report that it’s a very warm bag that is lightweight and comfortable. I love my other bag, the Sierra Designs Backcountry Bed, but when the temps dip down into the teens and 20s, I prefer the added warmth of a mummy style bag. I was excited to see this new offering… Full review

Sierra Designs Men's Mobile Mummy 600 3-Season

rated 4 of 5 stars Who came first, the chicken or the egg? Was it Sierra Designs or Exped? I dunno, but I like it. It's hard to say though whether it's an overstuffed extra long down vest or a warm roomy cocoon for human transformation, but it cries for transportation anywhere in camp. For me this design works the best, as I'm up and down numerous times during the night. With a side zip it works fine until it's colder. Then this bag shines, because I can just leave it on and unzip to satisfy the nature call. I think… Full review

Sierra Designs Men's Nitro 800 / 20 Degree

rated 5 of 5 stars On a 1-5 star scale it's a 6. Buy this bag. It's the best bang for the buck and SD warranty service is impeccable. I'm stoked on my bad ass SD Nitro. The following is from my review(s) posted on SD's web store: A big upgrade for my gear and a BIG HURRAH for Nate M. in customer service  First about the bag. I received my new Nitro 800 / 20 today and here are my first impressions. After fluffing it up I inspected it carefully. The fabric quality and workmanship are top shelf single malt, so what… Full review

Sierra Designs Zissou Plus 700 2-Season

rated 4 of 5 stars The design is innovative and the bag bag is warm and roomy made with excellent materials. 5-star warranty, design, materials, and comfort. Minus 1 star for quality control. Short story. I bought this last winter for sleeping in an unheated home in the NorCal coast redwoods that ran 43-48 degrees with high humidity for months and I until then this was the best warm weather bag I've owned and used. I sleep cold, as I'm 66 years old, and this bag was warm from two minutes after I'd slide in all through… Full review

Lafuma Men's Warm'n Light 800

rated 3.5 of 5 stars A decent quality bag. Lightweight. Meets claimed temp rating (my opinion). Good price. Everyone is different when it comes to how much insulation they need at a certain temperature. I find this bag perfectly adequate at the EN "comfort" rating of 43 degrees F.   I found it durable and lightweight. I don't see other bags of this quality at this price. Good loft, zipper works fine, nice hood. Stuffs down to very small. Tends to shed water from tent condensation when that happened once. I have used… Full review

user rating: 5 of 5 (12)
Western Mountaineering MegaLite
$450
user rating: 5 of 5 (7)
Western Mountaineering VersaLite
$560
user rating: 5 of 5 (4)
Marmot Teton
$202 - $299
user rating: 5 of 5 (4)
Western Mountaineering Apache MF
$525 - $540
user rating: 5 of 5 (4)
Marmot Lithium
$374 - $519
user rating: 5 of 5 (4)
Valandré Shocking Blue
$576 - $647
user rating: 5 of 5 (3)
Marmot Angel Fire
$172 - $258
user rating: 5 of 5 (3)
Mountain Hardwear Banshee SL 0°
$640
user rating: 5 of 5 (3)
Big Agnes Ethel 0°
$225 - $299
user rating: 4.5 of 5 (19)
Big Agnes Lost Ranger 15°
$175 - $299
user rating: 4.5 of 5 (18)
Kelty Cosmic 20
$100 - $169
user rating: 4.5 of 5 (8)
Marmot Never Summer
$202 - $299
user rating: 5 of 5 (2)
Big Agnes Fish Hawk 30°
$161 - $229
user rating: 5 of 5 (2)
Mountain Hardwear Ratio 15
$210 - $280
user rating: 4.5 of 5 (7)
Mountain Hardwear Spectre SL 20°
$625
user rating: 4.5 of 5 (4)
Mountain Hardwear Phantom 0°
$600 - $630
user rating: 4.5 of 5 (4)
Western Mountaineering AlpinLite
$540 - $585
user rating: 4.5 of 5 (3)
Kelty Cosmic 0
$165 - $239
user rating: 4.5 of 5 (3)
NEMO Nocturne 15
$380
user rating: 4.5 of 5 (3)
REI Igneo 25
$269
user rating: 5 of 5 (1)
Rab Ascent 500
$275
user rating: 5 of 5 (1)
Marmot Phase 30
$299 - $419
user rating: 5 of 5 (1)
Western Mountaineering Tamarak
$270 - $280
user rating: 5 of 5 (1)
Rab Neutrino 400
$289 - $384
user rating: 5 of 5 (1)
NEMO Disco 30
$195 - $279
user rating: 5 of 5 (1)
Sierra Designs Nitro 800 / 20 Degree
$330 - $359
user rating: 5 of 5 (1)
Sierra Designs Frontcountry Bed 600 SYN 2-Season
$161
user rating: 5 of 5 (1)
Sea to Summit Trek TK II
$150 - $329
user rating: 5 of 5 (1)
Western Mountaineering Sycamore MF
$470
user rating: 5 of 5 (1)
Big Agnes Summit Park 15
$247
user rating: 5 of 5 (1)
Western Mountaineering Antelope MF
$595 - $614
user rating: 4 of 5 (26)
Marmot Sawtooth 15
$70 - $278
user rating: 4 of 5 (20)
The North Face Blue Kazoo
$173 - $309
user rating: 4 of 5 (20)
Marmot Helium
$299 - $419
user rating: 4 of 5 (10)
Marmot Hydrogen
$247 - $349
user rating: 4 of 5 (8)
Marmot Never Winter
$142 - $219
user rating: 4 of 5 (8)
Western Mountaineering UltraLite
$485 - $514
user rating: 4 of 5 (6)
Western Mountaineering SummerLite
$390 - $419
user rating: 4 of 5 (3)
The North Face Gold Kazoo
$239
user rating: 4.5 of 5 (1)
Big Agnes Storm King 0°
$245 - $349
user rating: 4.5 of 5 (1)
REI Magma 10
$349
user rating: 4.5 of 5 (1)
Sierra Designs Cloud 800 / 20 Degree
$300 - $319
user rating: 4.5 of 5 (1)
Sierra Designs Nitro 800 / 0 Degree
$380
user rating: 4.5 of 5 (1)
Western Mountaineering Antelope GWS
$710
user rating: 4 of 5 (1)
Valandré Mirage
$420
user rating: 4 of 5 (1)
Rab Ascent 700
$252 - $315
user rating: 4 of 5 (1)
Marmot Scandium
$110 - $119
user rating: 4 of 5 (1)
NEMO Rhapsody 15
$400
user rating: 4 of 5 (1)
Rab Neutrino Endurance 600
$401 - $509
user rating: 4 of 5 (1)
NEMO Sonic 0
$360 - $479
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