3-Season Synthetic Sleeping Bags

Brands

Alpine Design
Wiggy's
ALPS Mountaineering
Moonstone
Marmot
Slumberjack
Mountain Hardwear
Therm-a-Rest
Cascade Designs
Teton Sports

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 and above

Recent 3-Season Synthetic Sleeping Bag Reviews

Alpine Design 20 Degree Sleeping Bag

rated 1.5 of 5 stars Don't buy this, the stuffing rips out easily and the zipper broke just after a few months in light use. Without the zipper the bag is useless. They need to put more money into the zipper! Don't buy  Full review

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

Top-Rated 3-Season Synthetic Sleeping Bags

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

 
user rating: 2.5 of 5 (2)
Alpine Design 20 Degree Sleeping Bag reviewed Mar 26, 2015
user rating: 3 of 5 (2)
Wiggy's Sleeping Bag reviewed Feb 6, 2015
user rating: 5 of 5 (1)
Wiggy's Hunter Super Lt reviewed Jan 13, 2015
$275 MSRP
user rating: 4.5 of 5 (2)
ALPS Mountaineering Desert Pine 20 reviewed Jan 12, 2015
$78
user rating: 4.5 of 5 (5)
ALPS Mountaineering Crescent Lake 20 reviewed Nov 30, 2014
$63
 
user rating: 5 of 5 (3)
Moonstone Optima reviewed Nov 1, 2014
discontinued
user rating: 4 of 5 (21)
Marmot Trestles 15 reviewed Feb 3, 2015
$87 - $149
user rating: 4 of 5 (2)
Slumberjack Esplanade +20ºF reviewed Oct 2, 2014
$90
user rating: 4.5 of 5 (1)
Marmot Cloudbreak 20 reviewed Sep 24, 2014
$198 - $209
user rating: 4 of 5 (5)
Mountain Hardwear Pinole 20° reviewed Aug 14, 2014
$104 - $140
user rating: 1.5 of 5 (1)
Therm-a-Rest Capella 20 reviewed Jul 3, 2014
$168 - $209
 
user rating: 4 of 5 (2)
Cascade Designs Therm-A-Nest reviewed Jun 18, 2014
user rating: 4 of 5 (1)
Teton Sports Tracker +5°F reviewed Jun 10, 2014
 
user rating: 4.5 of 5 (6)
Mountain Hardwear Crazy Legs 20° reviewed May 23, 2014
discontinued
user rating: 4.5 of 5 (1)
Eureka! Kaycee 0ºF reviewed Mar 26, 2014
$120 - $129
user rating: 3.5 of 5 (6)
REI Zephyr +15 reviewed Mar 24, 2014
discontinued
 
user rating: 3.5 of 5 (5)
Ledge Featherlite +20 reviewed Mar 12, 2014
user rating: 4.5 of 5 (9)
Wiggy's Ultra Light reviewed Feb 22, 2014
$200
 
user rating: 3 of 5 (6)
Storm Shield X-1100 reviewed Jan 20, 2014
discontinued
user rating: 5 of 5 (1)
Jack Wolfskin Touch the Clouds reviewed Jan 9, 2014
discontinued
user rating: 2 of 5 (1)
Musuc Selk'Bag 4G Patagon reviewed Nov 10, 2013
$199
user rating: 4.5 of 5 (1)
REI Zephyr +20 reviewed Sep 19, 2013
user rating: 4 of 5 (7)
Marmot Trestles 30 reviewed Sep 17, 2013
$59 - $126
user rating: 4.5 of 5 (9)
Mountain Hardwear Lamina 0° reviewed Sep 12, 2013
$180 - $300
user rating: 4.5 of 5 (10)
The North Face Snowshoe reviewed Sep 11, 2013
discontinued
user rating: 3.5 of 5 (3)
Big Agnes Hog Park 20° reviewed Aug 9, 2013
$150 - $349
user rating: 3.5 of 5 (4)
The North Face Bighorn reviewed Jul 22, 2013
discontinued
user rating: 4 of 5 (8)
Mountain Hardwear UltraLamina 15° reviewed Oct 31, 2014
$205 MSRP
user rating: 4.5 of 5 (1)
ALPS Mountaineering Diamondback +30 reviewed Jul 16, 2013
user rating: 4 of 5 (1)
The North Face Blaze 20 reviewed Jul 16, 2013
discontinued
user rating: 3 of 5 (1)
ALPS Mountaineering Blue Springs 20 reviewed Jun 27, 2013
$66 - $83
user rating: 4 of 5 (14)
Big Agnes Encampment 15° reviewed Jun 20, 2013
$170 - $189
user rating: 3 of 5 (2)
MontBell Super Spiral Burrow Bag #3 reviewed Jun 17, 2013
$159 MSRP
user rating: 5 of 5 (2)
REI Polar Pod +25 reviewed Jun 11, 2013
$80 - $99
user rating: 5 of 5 (1)
ALPS Mountaineering Echo Lake 20 reviewed May 30, 2013
$70
 
user rating: 4 of 5 (1)
Musuc Selk' Bag 3G reviewed Apr 25, 2013
user rating: 3.5 of 5 (1)
Chinook Sportster Hooded Tapered 23F reviewed Apr 3, 2013
 
user rating: 4 of 5 (2)
Ledge Featherlite 0 reviewed Apr 1, 2013
user rating: 4 of 5 (3)
Marmot Trestles 0 reviewed Mar 11, 2013
$111 - $172
user rating: 3 of 5 (12)
Slumberjack Super Guide +30°F reviewed Mar 10, 2013
discontinued
user rating: 4.5 of 5 (1)
High Peak Summit 20 reviewed Feb 25, 2013
user rating: 5 of 5 (1)
Mountain Hardwear Mountain Goat 20° reviewed Feb 23, 2013
$75 - $113
user rating: 4 of 5 (2)
The North Face Tigger reviewed Feb 23, 2013
discontinued
user rating: 4 of 5 (12)
Wiggy's Super Light reviewed Feb 23, 2013
$218 MSRP
 
user rating: 3.5 of 5 (7)
The North Face Snowshoe 3D reviewed Feb 3, 2013
discontinued
user rating: 2 of 5 (1)
VauDe Snow Cloud 800 reviewed Jan 17, 2013
user rating: 4 of 5 (2)
The North Face Orion reviewed Jan 17, 2013
discontinued
user rating: 3.5 of 5 (1)
Coleman Crescent 15 reviewed Jan 17, 2013
$60 MSRP
user rating: 4 of 5 (7)
Mountain Hardwear Lamina 20° reviewed Dec 14, 2013
$140 - $220
user rating: 5 of 5 (2)
Eureka! Wild Basin 0 reviewed Nov 19, 2012
$71 - $94
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