3-Season Synthetic Sleeping Bags

Brand

Ajungilak
Alite
Alpine Design
ALPS Mountaineering
Big Agnes
Black Pine Sports
Cabela's
Campus
Cascade Designs
Chinook

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)
Ajungilak Kompakt
Alite Sexy Hotness 2.0
$134
Alite Sexy Hotness Sleeping Bag
$179
user rating: 2.5 of 5 (2)
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 0
$95 MSRP
ALPS Mountaineering Crater Lake 20
$77
user rating: 3 of 5 (1)
ALPS Mountaineering Crescent Lake 0
$90 MSRP
user rating: 4.5 of 5 (6)
ALPS Mountaineering Crescent Lake 20
$49
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
$49
 
user rating: 4.5 of 5 (1)
ALPS Mountaineering Diamondback +30
ALPS Mountaineering Double-Wide
$120
ALPS Mountaineering Echo Lake 0
$50
user rating: 5 of 5 (1)
ALPS Mountaineering Echo Lake 20
$40 - $49
 
ALPS Mountaineering Explorer 0
 
user rating: 5 of 5 (1)
ALPS Mountaineering Monarch Pass 20
discontinued
ALPS Mountaineering Red Creek +0
 
ALPS Mountaineering Red Creek +15
ALPS Mountaineering Red Creek +30
 
user rating: 5 of 5 (2)
ALPS Mountaineering Silver Springs 20
discontinued
 
ALPS Mountaineering Twin Peak 20
Big Agnes Atlantic Point 30
Big Agnes Bald Mountain 18
Big Agnes Benchmark
Big Agnes Big Creek 30°
$250
Big Agnes Blue Lake 25
$110
Big Agnes Brooklyn 0
$190
user rating: 4.5 of 5 (1)
Big Agnes Buell 30
$110 - $119
Big Agnes Cabin Creek 15
$270
Big Agnes Cabin Creek 30
$270
Big Agnes Dream Island 15°
$250
Big Agnes Elsie 15
$120 - $129
user rating: 4 of 5 (15)
Big Agnes Encampment 15°
$160 - $199
Big Agnes Farwell 0
$200
Big Agnes Gunn Creek 30
$120 - $169
Big Agnes Haybro 15
$100
user rating: 3.5 of 5 (4)
Big Agnes Hog Park 20°
$190 - $329
Big Agnes Husted 20
$120 - $129
Big Agnes Little Red 15°
$70 - $99
Big Agnes Lulu 15°
$170 - $179
Big Agnes Master Key 25
$94
Big Agnes Moon Hill 26
Big Agnes Pristine 17
Big Agnes Shoestring SL
$123
Big Agnes Slavonia 30°
$90 - $159
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