Warm Weather Down Sleeping Bags


Big Agnes




less than $100
$100 - $199.99
$200 - $299.99
$300 and above

Recent Warm Weather Down Sleeping Bag Reviews

Marmot Aspen 40 Ultralight

rated 2.5 of 5 stars The bag is rated at 40 degrees, works pretty good to that temp. It's very lightweight at 1.5 lbs. It's a good summer bag! I bought this bag last summer and used it in warmer nights than its specified 40 degree temp, so used it as a quilt just laid over me at night. It's very lightweight at 1 1/2 lbs and stuffs into a compression stuff sack. It's filled with Polarguard and compresses very well to the size of a soccer ball, so takes up very little room in my backpack or bike panniers. It's a very… Full review

Big Agnes Horse Thief SL 35°

rated 4 of 5 stars 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

Mountain Hardwear Ratio 45

rated 4 of 5 stars 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

Mountain Equipment Men's Glacier 500

rated 3.5 of 5 stars One of Mountain Equipment's all rounder sleeping bags designed to tackle a wide range of conditions. It does what is says on the tin, keeps you warm when it is cold, however it does have a few drawbacks that would make me consider going for something else. Lets start with the basics.  With an extreme temperature rating of -21 degrees Celsius/ -6 degrees F, Comfort rating of 2 degrees Celsius/ 36 degrees F and a "Good nights sleep rating of -8 degrees Celsius/ 18 degrees F. This bag is going to… Full review

Marmot Always Summer

rated 4 of 5 stars Took this camping on a chilly April night in Utah and it stood up well. I was able to slip a small liner inside as well and it got too warm. This bag kept me incredibly warm and was able to fit a liner in quite easily. However the foot box was smaller than I expected. Not horribly so, but just enough to notice. Getting in and out typically wasn't an issue, however the zipper would get stuck every once in a while. Easy enough to adjust. The bag packs incredibly well and puffs up easily after having… Full review

Sea to Summit Traveller TRI

rated 3.5 of 5 stars This is a cost effective and more than adequate light minimal coverage for a quick summer outing in the woods. It is versatile enough for couch surfing relatives over the holidays. It is just wide enough to cover two cozy campers that are not too big in girth on a not chilly summer outing. Originally bought for couch surfing relatives, but I found it useful as a comforter on a fall evening too. That opened the door to other uses. Took it out for a July 6K ft elevation overnight in Sierra Nevadas… Full review

Sea to Summit Spark SP I

rated 4 of 5 stars This is an ultra-ultralight sleeping bag with a short zip. Use it when you want to save weight and if you are prepared to sacrifice some comfort. I am 189cm (6'2"). This bag (size long) weighs 428g (15.097oz) without the stuff sack. It is the lightest sleeping bag I could find. Warmth:This is different for every person. I would say the temperature rating is OK. I am a very cold sleeper so I can use this bag even when it is around the lower limit of 8°C|46°F. I don't mind being somewhat cold, but… Full review

Western Mountaineering HighLite

rated 4.5 of 5 stars 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! 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… Full review

Sierra Designs Men's Backcountry Bed 600 2-Season

rated 4 of 5 stars I'm a believer. Took the leap and bought a Sierra Design Backcountry Bed. Zipper-less, roomy, down warm weather sleeping bag. Great bag for side sleepers and those move around a lot at night like me. I find the bag works best for warmer weather nights (over 40 degrees). Great for base camps, car camping, and shorter backing trips. There are lighter bags but at an increased cost. I would buy a SD Backcountry Bed again. I haven't found a more comfortable down bag yet.  I love not having a zipper. Full review

Top-Rated Warm Weather Down Sleeping Bags

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Big Agnes Big Pine 35
Big Agnes Down Comforter
user rating: 3 of 5 (6)
Big Agnes Horse Thief SL 35°
$370 MSRP
Big Agnes McKinnis
user rating: 5 of 5 (1)
Big Agnes Yampa 40°
Big Agnes Yampa 45°
$131 - $189
Brooks-Range Drift 45
user rating: 5 of 5 (1)
Cabela's Boundary Waters 40
Cabela's Imeon 45F Sleeping Bag
Cabela's XPG 45F Sleeping Bag
user rating: 4 of 5 (1)
Campmor 45° rectangular
Crux Torpedo 350
user rating: 4 of 5 (2)
Cumulus Panyam 450
Exped Comfort 400
Exped DeepSleep Duo 400
Exped DeepSleep Uno 300 Plus
Exped Dreamwalker 450
Exped Dreamwalker Camp 450
$149 - $178
Exped Dreamwalker DUO 400
Exped Ultralight 300
Exped Ultralite +3C/+37F
Exped Versa 400
Exped Versa Mummy +5C/+41F
Fjallraven Sarek Two Seasons
Fjallraven Singi Two Seasons
user rating: 5 of 5 (3)
GoLite Feather-Lite Bag
user rating: 5 of 5 (1)
Kelty Coromell Down 40
Kelty Cosmic 40
$90 - $129
user rating: 4 of 5 (1)
Kelty Galactic 50°
Kelty SB 35
Kelty Tuck 35 / EN 30
$60 - $79
user rating: 4 of 5 (1)
L.L.Bean Goose Down Sleeping Bag Semi-Rectangular 35F
L.L.Bean Down Sleeping Bag with DownTek, Semi-Rectangular 35°
user rating: 4 of 5 (3)
Lafuma One Kilo
user rating: 4 of 5 (1)
Lafuma TMB 40
user rating: 3.5 of 5 (5)
Lafuma Warmn Li 600
user rating: 4 of 5 (1)
Marmot Always Summer
$134 - $198
user rating: 4 of 5 (3)
Marmot Aspen 40 Ultralight
user rating: 5 of 5 (4)
Marmot Atom
$173 - $246
Marmot Plasma 40
user rating: 5 of 5 (1)
Marmot Sierra 40
Marmot Yurt 35
Montane Featherlite
user rating: 4.5 of 5 (1)
Montane Minimus Sleeping Bag
user rating: 2.5 of 5 (1)
MontBell Alpine Burrow Bag Thermal Sheet
$99 MSRP
user rating: 4 of 5 (1)
MontBell Super Spiral Down Hugger #5
$199 MSRP
user rating: 4 of 5 (1)
MontBell U.L. Alpine Down Hugger Thermal Sheets
user rating: 4.5 of 5 (3)
MontBell U.L. Super Spiral Down Hugger #5
$244 MSRP
user rating: 4.5 of 5 (4)
MontBell U.L. Super Stretch Down Hugger #4
user rating: 4 of 5 (1)
MontBell U.L. Super Stretch Down Hugger #5
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