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Warm Weather Down Sleeping Bags

Top Picks

How we choose: The best warm weather down sleeping bags highlighted here were selected based on 98 reviews of 47 products. Our top picks are those that are readily-available in the United States and have received the highest overall ratings from reviewers.

How we test: Trailspace is powered entirely by our community of readers. The reviews posted here reflect the real-world experiences of outdoor enthusiasts just like you.

If you've used a warm weather down sleeping bag that you think should be listed here, please share your experience.

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Western Mountaineering EverLite

user rating: 5 of 5 (3 reviews)

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.

Reasons to Buy

  • Warmth
  • Light weight
  • Comfort
  • Quality

Reasons to Avoid

  • Price, though worth it IMO
  • No zipper pulls on inside

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, inner/outer bag to increase the warmth of another bag, and an overquilt for a hammock.  Construction is very high quality, all stitching is even and straight, and the only flaw I’ve found on mine is the hook and loop fastener at the foot was mistakenly sewn as a hook and hook fastener.

Read more: Western Mountaineering EverLite reviews (3)

Western Mountaineering HighLite

user rating: 4.5 of 5 (7 reviews)

This super-lightweight, amazingly compressible, down sleeping bag rated 35 degrees is my go-to bag for just about all of my backpacking trips. While rated at 35 degrees, I'll take it even if it's supposed to get down to 30, and I'll explain that below. I would not take this bag if conditions predicted temps colder than 30 and/or lots and lots of rain. Otherwise, this is a great bag!

Reasons to Buy

  • Lightweight
  • Warmth
  • Compressible
  • No-snag zipper

Reasons to Avoid

  • 1/2 length zipper
  • Not hydrophobic down

Since it's a sleeping bag, let's talk about warmth first. I HATE being cold. I like to sleep warm, and I tend to sleep cold. So, I need to add things to keep me warm when other people would think I'm crazy.  I used this 35 degree bag in 30 degree temps, with wind chills lower due to 30 mph winds. I wore an old Moonstone Stretch Fleece and a Mountain Hardwear Ghost Whisperer along with medium weight Patagonia Capillene long johns and Smartwool Light Hiker socks to stay warm and cozy in my tent.

Read more: Western Mountaineering HighLite reviews (7)

Western Mountaineering Caribou MF

user rating: 5 of 5 (3 reviews)

What can I say about Western Mountaineering, I first heard about these products through an online talk group and I must say I'm impressed. To put it in perspective, I currently own two Rab mountaineering sleeping bags which were handmade for me, however for use in Scotland in the summer, I found they were just too warm. So when I heard about Western Mountaineering, I decided to look up the only United Kingdom supplier of these sleeping bags and found that they were offering the "Caribou" at a sale price of £135 so I decided to order.

Read more: Western Mountaineering Caribou MF reviews (3)

Sea to Summit Traveller TrI 50°F

user rating: 4 of 5 (3 reviews)

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.).

Reasons to Buy

  • Lightweight
  • Versatile (can be used in many forms)
  • Good quality
  • Warm
  • Comes with a compacting stuff sack (see “cons”) and a storing square bag for longevity

Reasons to Avoid

  • Won’t fit in the supplied compacting stuff sack. And if it does (which is super hard) it’ll get over-compressed, which isn’t something I recommend for down items anyway
  • A bit pricey for a warm-weather bag, but it’s down, good quality, and lightweight so it kinda compensates

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 with mid-temp sleeping bags, added of other layers like clothes (base layer and others) and a hammock sock (e.g. my Outdoor Vitals Bugnet which serves double-duty as wind insulation and bug protection). Characteristics The Sea To Summit TR1 has proved perfect for my needs. It’s lightweight and compact compared to synthetics, and it can be used in different ways to accommodate for various situations.

Read more: Sea to Summit Traveller TrI 50°F reviews (3)

Western Mountaineering MityLite

user rating: 4.5 of 5 (3 reviews)

A good bag for its intended use: 40 degree evenings. If it's a bit colder outside than that, you might want a baffled design sleeping bag. If the temperature is 30 degrees or less, you will really want more down in a baffled bag unless you have the metabolism of a squirrel. Admittedly, I tend to "sleep cold".The bag is rated to fit people up to 6'3". I am 6'0" and wouldn't want the length to be any shorter.Build quality is as good as any other premium brand. The fabric used for the shell requires some extra care, as it is an extremely light ripstop.

Read more: Western Mountaineering MityLite reviews (3)

Big Agnes McKinnis

user rating: 3.5 of 5 (1 review)

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.

Reasons to Buy

  • Incredibly lightweight
  • Non-existent pack size
  • DownTek water-repellant down
  • Two-way zip
  • Versatile

Reasons to Avoid

  • Uneven fill between baffles
  • Hood is useless
  • Stuff sack lacks compression straps

WARMTH No temperature rating is given for the McKinnis so that kind of eliminates the whole “Does it keep you warm at its stated rating?” question. I received this bag for testing at the end of July, so right in the wheel house of this ultra light bag, and have purposely held off on this review until I could test it to its limits….I found the limits….in an uncomfortable way.  If I were to assign the most unscientific EN ratings ever (please keep in mind these are just my opinion and everyone's sleep comfort is influenced by a number of factors), I would give it a comfort rating of around 13°c (around 55°f), and a lower limit at somewhere between 8° and 10°c (46° - 50°f).

Read more: Big Agnes McKinnis review (1)

Sierra Designs Mobile Mummy 800 2-Season

user rating: 5 of 5 (2 reviews)

Surely you have had to deal with the agony of having to crawl out of your warm sleeping bag when it is freezing cold out. Nobody likes it! Sierra Designs has come up with a solution for it by creating one of the most innovative new sleeping bags on the market, The Mobile Mummy. It is a garment style sleeping bag that you can wear while you walk around camp and use your arms to read, eat, or drink a beverage while in your tent. While it isn’t the first sleeping bag with arm and leg ports, it is certainly the most well designed one that I have seen. Weighing in at 1 lb 13 oz, this 800 fill DriDown women’s specific version is rated to a comfort level of 31 degrees and a lower limit of 20 degrees.

Reasons to Buy

  • You can walk and have full use of your arms while wearing it
  • Helps save weight in your pack because you don’t have to bring a jacket
  • The bag exceeds temperature rating — very warm
  • Very comfortable
  • Stylish — garment style fit

Reasons to Avoid

  • Women’s length is short; Max user height is 5’8”
  • No pockets

About the tester: I am a 5’4” 30-year-old female backpacker from South Carolina. I typically day hike and backpack in the southern Appalachian Mountains, primarily in North Carolina. My backpacking style is comfort-driven. I am not afraid to carry an item that is a few more ounces if it means it will be more comfortable. I prefer big tents, warm and roomy sleeping bags, plush sleeping pads, and packs with very comfortable waist belts and shoulder pads. In other words, “roughing it” is not my style.

Read more: Sierra Designs Mobile Mummy 800 2-Season reviews (2)

Montane Minimus Sleeping Bag

user rating: 4.5 of 5 (1 review)

The Montane Minimus sleeping bag is very lightweight, 3-season bag, well suited for the light backpacker or climber who will be traveling in damp environments (heavy dew, occasional rainshowers) with minimal shelter, bivouacking in the open, or as an emergency backup. Since it is quite waterproof, the Minimus can act as a combined bivy sack and sleeping bag for much less weight and is more compact. Its major flaw is that it is somewhat awkward to get into due to the zipper design.

Reasons to Buy

  • Waterproof shell breathes well
  • Waterproof shell sheds water very well
  • Lightweight
  • Included drybag stuff sack has readily packable compact shape
  • Stuffs small
  • Zipper pulls are luminescent, easy to see in the dark

Reasons to Avoid

  • Zipper is awkward to operate from inside the bag
  • Zipper lacks pulls on inside, pulls are only on outside
  • Getting in and out of bag involves a bit of thrashing around
  • Getting into the waterproof bag in rain without getting water inside the bag is a bit tricky

Background: One of the most critical items for the backpacker, climber, backcountry skier, or snowshoer is the sleeping bag. A good sleeping bag can mean the difference between a good night’s restful sleep and misery. Among the criteria are warmth to match the environment, weight of the bag in your pack, comfort to match your size, durability, and a reasonable cost for what you get. During my life in the outdoors, I have been given, bought, slept in, and divested too many sleeping bags. I started, as most kids growing up in the middle of the Sonora Desert did, with a “bedroll”, which basically was just a wool blanket.

Read more: Montane Minimus Sleeping Bag review (1)

Sea to Summit Micro MC II

user rating: 5 of 5 (2 reviews)

2-3 season bag that's easy to pack and carry, and is very flexible in use, covering a huge range of above-freezing temperatures.

Reasons to Buy

  • Very light
  • Packs very small
  • Very flexible in use
  • Very good value for money
  • Covers a huge range of temperatures

Reasons to Avoid

  • Like all lightweights: Treat it with care if you want it to last.

I used this bag in early 2013 on a 3-month cycling tour of Australia in summer/early autumn. I moved to a new location most days, so there was plenty of packing and unpacking. Conditions ranged from around +2°C (ground frost) at 1,000 m in Tasmania to + 30°C night temperatures at sea level in southern Queensland. I always use a Coolmax liner as it's much easier to wash a liner than a down bag. (I find silk liners to be too clammy.) In the coldest temperatures I was snugly warm in a lightweight merino cycle top inside the liner and with the bag zip fully closed with hood up and foot end closed.

Read more: Sea to Summit Micro MC II reviews (2)

Cumulus Panyam 450

user rating: 4 of 5 (2 reviews)

In his class does not have many competitors when it comes to quality, and probably none when it comes to contact with the customer, which is at a very high level.

Reasons to Buy

  • Good quality (including high-quality down)
  • Weighs less than 900 gram
  • The price below 300$
  • Small size after packing to transport bag
  • Resistance to humidity

Reasons to Avoid

  • Occasionally jamming zipper
  • Impractical string instead of rubber bands used to bind the hood

Cumulus Panyam 450 Down sleeping bag — Cumulus Panyam 450 — I’ve bought nearly a year ago, before making a pretty thorough researches, among other light, 3-seasons down sleeping bags on the market. So far I tested this sleeping bag during multi-days trips in Polish mountains (spring, autumn and winter) and during the six-week expedition to the north-eastern India (mountains of Arunachal Pradesh). Tests are ongoing , and I’m sending my critics to Cumulus company hoping that they will be included in the production of new models.

Read more: Cumulus Panyam 450 reviews (2)

More Reviews of Warm Weather Down Sleeping Bags

Trailspace reviewers have shared 98 reviews of 47 different warm weather down sleeping bags.

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Other Types of Warm Weather Sleeping Bags

Find more warm weather sleeping bags reviewed in these related categories:

Warm Weather Synthetic Sleeping Bags

all Warm Weather Sleeping Bags (above 35°F)

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