3-Season Synthetic Sleeping Bags

Brands

Ajungilak
Alpine Design
ALPS Mountaineering
Big Agnes
Black Pine Sports
Campus
Cascade Designs
Chinook
Coleman
Columbia

Genders

Unisex
Men's
Women's
Kids'
Boys'
Girls'

Price

less than $50
$50 - $99.99
$100 - $199.99
$200 - $299.99
$300 - $399.99
$400 - $499.99
$500 and above

Recent 3-Season Synthetic Sleeping Bag Reviews

Wiggy's Sleeping Bag

rated 2 of 5 stars Military style robustness, but not up to its temperature rating. I had the flexible temperature range sleeping system: i.e. two bags that are made to fit into each other (the outer bag has an additional zipper to mate with the zip of the inner bag). The idea of a sleeping system was the reason I bought the bags. The inner bag was supposed to be warm down to -15°C or so: i froze my ass of around 0°C. The combination of both is rated -40°C (=-40°F). I quit a trip in -15°C, because it wouldn't… Full review

Marmot Men's Trestles 15

rated 4 of 5 stars At entry-level price and above entry-level quality, this is an excellent 3-season bag that can withstand mild winter temps. It's just not very lightweight at 4 lbs. Conditions: I bought this bag nearly five years ago because of an increased interest I was taking in colder weather trips and my Marmot Alpine 40 Minimalist wasn’t cutting it for lower temps. However, I liked my previous Marmot bag, so I stayed with the brand (and price range) instead of going all-in on a down bag. Someday I hope… Full review

Wiggy's Hunter Super Lt

rated 5 of 5 stars Very well constructed and warm! I purchased the Hunter Super Lt with hood rectangular, the ftrss system. I highly recommend this bag. I use it for base camps. I have not used the outer bag for hiking, but might since it is light. I recommend this product for anyone who wants a quality sleeping bag made in the USA that will last a lifetime. Customer service was fantastic. The web site spells out the return policy. The invoice also spells out the return policy — no issues at all. Answered all my… Full review

ALPS Mountaineering Unisex Desert Pine 20

rated 4.5 of 5 stars A solid and affordable starter bag that performs ably. Full disclosure: I've had mine for closing on five years now. Take this review both as a testament to its performance and durability. Keep in mind that the model of bag may have changed for the better or worse since I bought mine. ALPS products are, overall, pretty solid offerings in the entry to mid-grade market. They're not as light, compact, or elegant as some of the competition with fancy brand names. They are, however, performing, durable,… Full review

ALPS Mountaineering Crescent Lake 20

rated 4 of 5 stars The ALPS Mountaineering Crescent Lake +20F sleeping bag is warm and comfortable, relatively roomy, and retains its loft very well. It's one of the few sleeping bags I've ever used with an accurate temperature rating. I picked up this sleeping bag in late spring, but it was too warm to use until just about a month ago. In that time I've used it maybe 15 nights, in temps ranging from around 40°F to 16-18°F, and am pretty impressed with it. I like it enough that I bought an ALPS Mountaineering Echo… Full review

Kelty Men's Mistral 20

rated 4.5 of 5 stars A great bag, at a great price. Very warm. I bought this bag from Sierra Trading with the deal flyer discount, and it came in under $100. A very nice bag. I pack it in a large Alps Mountaineering compression bag. One of two long 20 degree bags I own. The other is the Marmot Sorcerer. This is the nicer bag. Full review

Moonstone Optima

rated 5 of 5 stars I stumbled onto the Moonstone brand at a "high-end" outfitter in 1990 in Boston, Mass. I have the Optima Long and Maxima Long bags, with snap-in liner. The latter is used mostly in New England winters; the former in spring and fall cool weather. My Optima is showing its age with a couple rips on the zipper baffle this fall. Hardly a cold night in either bag. Too bad to hear, now years later, about the closure of Moonstone.  I have been convinced more than once about the value of synthetic bags… Full review

Mountain Hardwear Men's UltraLamina 15°

rated 3 of 5 stars Warm and quite confortable overall, but with some design flaws! And a zipper at risk! This bag has felt warm and comfortable, with enough room and a nice feeling in contact with body. It has stayed this way in a variety of conditions, even with light rain, and heavy condensation. (But I have not tried it yet anywhere near its low temperature range.) All of this is very important! At the same time I felt there are some important flaws: The bag has turned out to be both bigger and heavier than stated… Full review

Marmot Women's Trestles 15

rated 4 of 5 stars Works great, stays warm, even when partially wet. Heavy and bulky for backcountry, which is enough inconvenience for the star deduction. Synthetic, it's got the pros of warmth, even when it gets moisture. And let's be honest, warmth is more important when its below freezing, and worth carrying about 3 more lbs than most down bags that keep you as warm in the same temps. But that's just it, if you can afford to carry less, then good for you—a down bag especially one of those new water resistant… Full review

Top-Rated 3-Season Synthetic Sleeping Bags

Sort by: name | rating | price | availability | recently reviewed

 
user rating: 4 of 5 (4)
Ajungilak Kompakt
 
user rating: 3.5 of 5 (1)
Alpine Design 20 Degree Sleeping Bag
user rating: 5 of 5 (1)
ALPS Mountaineering Alpine Lake 0
discontinued
user rating: 5 of 5 (1)
ALPS Mountaineering Alpine Lake 20
discontinued
user rating: 4 of 5 (1)
ALPS Mountaineering Blue Mountain 20
discontinued
user rating: 3 of 5 (1)
ALPS Mountaineering Blue Springs 20
user rating: 1 of 5 (1)
ALPS Mountaineering Clearwater 20
$100 MSRP
ALPS Mountaineering Crater Lake 20
$62
ALPS Mountaineering Crescent Lake 0
$90 MSRP
user rating: 4.5 of 5 (5)
ALPS Mountaineering Crescent Lake 20
$45
user rating: 5 of 5 (1)
ALPS Mountaineering Desert Pine 0
$110 MSRP
user rating: 4.5 of 5 (2)
ALPS Mountaineering Desert Pine 20
$65
ALPS Mountaineering Diamondback +0
ALPS Mountaineering Diamondback +15
user rating: 4.5 of 5 (1)
ALPS Mountaineering Diamondback +30
ALPS Mountaineering Double-Wide
$190 MSRP
ALPS Mountaineering Echo Lake 0
$58
user rating: 5 of 5 (1)
ALPS Mountaineering Echo Lake 20
$65
 
user rating: 5 of 5 (1)
ALPS Mountaineering Monarch Pass 20
discontinued
ALPS Mountaineering Red Creek +0
$100
ALPS Mountaineering Red Creek +15
$97
 
user rating: 5 of 5 (2)
ALPS Mountaineering Silver Springs 20
discontinued
 
ALPS Mountaineering Twin Peak 20
$130
Big Agnes Bald Mountain 18
$168 - $189
Big Agnes Beeler Gulch SL
Big Agnes Betty SL
$104
Big Agnes Big Creek 30°
$204 - $239
Big Agnes Brooklyn
$180 - $189
Big Agnes Cabin Creek 15°
$270
Big Agnes Dream Island 15°
$220 - $229
user rating: 4 of 5 (14)
Big Agnes Encampment 15°
$153 - $189
Big Agnes Farwell 0°
$157 - $209
Big Agnes Gem Lake Sleeping Bag, Mummy 15°
Big Agnes Gem Shoestring SL Sleeping Bag, Mummy 15°
$131 - $175
Big Agnes Gunn Creek 30°
$120 - $169
Big Agnes Haybro
user rating: 3.5 of 5 (3)
Big Agnes Hog Park 20°
$144 - $349
Big Agnes Lily
Big Agnes Little Red 15°
$55 - $99
Big Agnes Lulu 15°
$127 - $179
Big Agnes Moon Hill 26
$127 - $169
Big Agnes Pristine 17
$157 - $209
Big Agnes Shoestring SL
Big Agnes Slavonia 30°
$112 - $159
Big Agnes Whiskey Park 0°
$180
Big Agnes Wind Lip 28
$127 - $189
Big Agnes Wolverine 15°
$110 MSRP
 
user rating: 3 of 5 (1)
Black Pine Sports Graystar Mummy +20
 
user rating: 4 of 5 (1)
Campus Adventure
 
user rating: 4 of 5 (2)
Cascade Designs Therm-A-Nest
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