3-Season Synthetic Sleeping Bags

Brand

Marmot
Teton Sports
Mountain Hardwear
Wiggy's
ALPS Mountaineering
The North Face
Mountainsmith
Snugpak
Wilderness Experience
Big Agnes

User

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

Marmot Trestles 20 Semi Rec

rated 4 of 5 stars After doing some research, I wanted a bag that was synthetic and wasn't a tight fitting mummy bag. This fits the bill. The double zippers are great and allow the bag to breathe on hot nights. I've never been cold with this bag, even when the temperate outside dips into the 20s. I have found that in that range, the bag does take sometime to warm up inside. As everyone else has said, the zippers do tend to get caught on the fabric a lot. The glow-in-the dark zipper finders are also pretty weak too. Full review

Teton Sports TrailHead +20F Ultralight

rated 4 of 5 stars Very comfortable and warm material. Good bag for the price. A bit snug around the shoulders. Lightweight and well built. Fits well in my backpack compartment. It's also a bit too long for me (5'8"). I have used this tent twice this spring/summer already since I purchased it. The first time was in the spring around Mother's Day and I was comfortable the first night when the temps were above 35 degrees. The second night it dropped down under and I found myself a bit chilled, not too bad, but just… Full review

Mountain Hardwear HyperLamina Flame 20

rated 4 of 5 stars I purchased this bag for sea kayaking in the NW. This bag is warm, compresses small for a synthetic filled bag, and has a roomy footbox and a relaxed mummy design. First off, I have used this bag on multiple trips, both backpacking, sea kayaking, and car camping. I feel I have used it enough to give a solid review of its features. This bag is light enough to carry and compresses small for a synthetic bag. It has no noticeable cold spots. The baffles seem to hold the fill in place well. The best… Full review

Wiggy's Sleeping Bag

rated 1 of 5 stars Just got off the phone with Jerry with a problem with a 0-degree bag not keeping me warm in 35-degree weather,  So asked what he suggested, to my surprise no help with possibility of a problem with the bag. His fix was buy fishnet long underwear for 80 dollars. Too funny! OK, I will use this bag for my dog to sleep on and go buy a good bag. Full review

Mountain Hardwear UltraLamina 0°

rated 5 of 5 stars The bag is warm, packable, and good quality. Someone who sleeps cold should do well in this bag. This is the best sleeping bag I've used so far. Using it recently on the AT it kept me warm @ 20°F and got too hot when I zipped it up the second night @27°F in the tent. I have a feeling it will go down to 0°F, but it works well into the teens. Have the regular size so there is extra room all over the bag for me to move around in. I probably should have a short, but the extra room allows me to store… Full review

Marmot Men's Trestles 30

rated 3 of 5 stars Gone are the days when Marmot made durable and hardcore outdoor products. Instead, we now have Marmot, the maker of average to subpar outdoor products that are at best just a step ahead of Walmart quality. The Trestles 30 is suitable for car camping and campground only outings. While I cannot say the Trestles 30 is a "bad" bag, I also can't say this is a bag that is going to do anything more than be a decent bag for car camping and front country endeavors. Like other Marmot products I have tested… Full review

Mountain Hardwear Pinole 20°

rated 4.5 of 5 stars Warm cozy and bulky synthetic sleeping bag that weighs almost as little as a down sleeping bag. Excellent quality and features. I used this sleeping bag while hiking for two months the Israeli National Trail and I did like it a lot. I'm a very cold sleeper, with a slim fit, which means finding a good sleeping bag is a nightmare for me, but I did find this bag warm with no cold spots, which was a nice surprise. I used it in freezing desert nights and misty damp nights, and while most of the other… Full review

ALPS Mountaineering Crescent Lake 0

rated 3 of 5 stars Nice bag. Light but extremely bulky. Took this bag on a 10-day float on the Green River. Needed to buy a 35 L dry bag to replace the stuff sack as it took way too much space in my pack. Temperatures dropped to mid forties and the bag was very comfortable. The bag had no cold spots or drafts and fit perfectly. The bag doesn't compress well and is too bulky.  Full review

The North Face Squall

rated 4 of 5 stars Lightweight, synthetic mummy bag with 20 degree rating. I picked up this bag on a closeout sale for around $75. Especially for the price, it has really been a good investment. I've used it in below-freezing temps, as well as the summer. It gets a little too warm in the summer, but otherwise it has done everything I've asked of it. I've had it since 2003, and it still looks brand new. It is machine washable, and all seams and zippers hold up well against wear and tear. I'm a 5'4" female, so I have… Full review

Top-Rated 3-Season Synthetic Sleeping Bags

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

user rating: 4 of 5 (4)
Marmot Trestles 20 Semi Rec reviewed Jul 10, 2017
discontinued
user rating: 4 of 5 (1)
Teton Sports TrailHead +20F Ultralight reviewed Jul 6, 2017
$65 MSRP
user rating: 4.5 of 5 (2)
Mountain Hardwear HyperLamina Flame 20 reviewed Jun 13, 2017
$191 - $255
user rating: 2 of 5 (3)
Wiggy's Sleeping Bag reviewed Feb 9, 2017
user rating: 5 of 5 (1)
Mountain Hardwear UltraLamina 0° reviewed Dec 5, 2016
$220 MSRP
user rating: 4 of 5 (8)
Mountain Hardwear Pinole 20° reviewed Oct 21, 2016
$100 MSRP
user rating: 3 of 5 (1)
ALPS Mountaineering Crescent Lake 0 reviewed Sep 29, 2016
$90 MSRP
user rating: 3 of 5 (5)
The North Face Squall reviewed Sep 29, 2016
discontinued
user rating: 2 of 5 (1)
Mountainsmith Crestone 0 reviewed Sep 24, 2016
discontinued
user rating: 5 of 5 (2)
Snugpak Jungle reviewed Sep 17, 2016
user rating: 2 of 5 (1)
Mountain Hardwear Lamina Z Flame 22° reviewed Aug 22, 2016
$149 - $199
user rating: 4.5 of 5 (7)
The North Face Thunderhead 3D reviewed Aug 8, 2016
discontinued
 
user rating: 4 of 5 (2)
Wilderness Experience Latok reviewed Jul 30, 2016
discontinued
user rating: 4.5 of 5 (1)
Big Agnes Buell 30 reviewed Jul 5, 2016
$110 - $119
user rating: 4 of 5 (10)
Sierra Designs Wild Bill 20 reviewed Jun 18, 2016
$120 MSRP
user rating: 4 of 5 (1)
Wenzel Reverie Mummy 30 reviewed Jun 11, 2016
$55 MSRP
user rating: 5 of 5 (1)
NEMO Mezzo Loft reviewed Jun 10, 2016
$230
user rating: 5 of 5 (1)
Slumberjack Timberjack 0 reviewed Jun 9, 2016
$85 MSRP
user rating: 4 of 5 (15)
Big Agnes Encampment 15° reviewed Jun 3, 2016
$160 - $189
user rating: 4 of 5 (1)
Mountain Hardwear Lamina 32° reviewed Jun 2, 2016
user rating: 4.5 of 5 (2)
NEMO Mezzo Loft Luxury reviewed Jun 2, 2016
user rating: 4 of 5 (4)
Marmot Trestles 0 reviewed Jun 1, 2016
$139 - $159
 
user rating: 4 of 5 (3)
Eurohike Backpacker Micro II reviewed Apr 14, 2016
user rating: 4.5 of 5 (6)
The North Face Goliath 3D reviewed Apr 4, 2016
discontinued
user rating: 4.5 of 5 (6)
ALPS Mountaineering Crescent Lake 20 reviewed Jan 6, 2016
$49
user rating: 4 of 5 (13)
Wiggy's Super Light reviewed Oct 30, 2015
$218 MSRP
user rating: 3.5 of 5 (68)
The North Face Cat's Meow reviewed Oct 4, 2015
$135 - $219
user rating: 5 of 5 (1)
REI Lumen +25 reviewed Oct 4, 2015
$159
user rating: 4 of 5 (2)
Teton Sports Tracker +5°F reviewed Sep 10, 2015
user rating: 3.5 of 5 (4)
Big Agnes Hog Park 20° reviewed Sep 10, 2015
$190 - $329
user rating: 4.5 of 5 (2)
Kelty Tuck 20 / EN 22 reviewed Aug 26, 2015
$68 - $99
user rating: 4.5 of 5 (9)
The North Face Elkhorn reviewed Jul 7, 2015
discontinued
user rating: 2.5 of 5 (1)
Therm-a-Rest Saros reviewed Jun 27, 2015
$170 - $179
user rating: 4 of 5 (1)
Mountain Hardwear Laminina Z Flame reviewed Jun 26, 2015
$149 - $199
 
user rating: 4.5 of 5 (4)
Moonstone Optima reviewed May 24, 2015
discontinued
 
user rating: 4 of 5 (2)
REI Nooksack UL +10 reviewed Apr 13, 2015
discontinued
 
user rating: 2 of 5 (1)
REI Shasta +15 reviewed Apr 11, 2015
discontinued
user rating: 4 of 5 (8)
Mountain Hardwear Lamina 20° reviewed Apr 11, 2015
$220
user rating: 2.5 of 5 (2)
Alpine Design 20 Degree Sleeping Bag reviewed Mar 26, 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
$49
user rating: 4 of 5 (8)
Mountain Hardwear UltraLamina 15° reviewed Oct 31, 2014
$205 MSRP
user rating: 4 of 5 (24)
Marmot Trestles 15 reviewed Sep 20, 2016
$80 - $129
user rating: 4 of 5 (2)
Slumberjack Esplanade +20ºF reviewed Oct 2, 2014
$80 MSRP
user rating: 4.5 of 5 (1)
Marmot Cloudbreak 20 reviewed Sep 24, 2014
$134
user rating: 1.5 of 5 (1)
Therm-a-Rest Capella 20 reviewed Jul 3, 2014
user rating: 3.5 of 5 (6)
Mountain Hardwear UltraLamina 32° reviewed Jul 1, 2014
$190 MSRP
 
user rating: 4 of 5 (2)
Cascade Designs Therm-A-Nest reviewed Jun 18, 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
$160 MSRP
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