3-Season Synthetic Sleeping Bags

Brand

Mountain Hardwear
Snugpak
Eureka!
ALPS Mountaineering
The North Face
REI
NEMO
Kelty
Marmot
Big Agnes

User

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

Price

less than $25
$25 - $49.99
$50 - $99.99
$100 - $199.99
$200 - $299.99
$300 - $399.99
$400 and above

Recent 3-Season Synthetic Sleeping Bag Reviews

REI Men's Lumen +25

rated 4 of 5 stars Comfortable, long lasting three-season sleeping bag. Purchased in 2012 when I first got into backpacking. Wanted an affordable bag for backpacking. Packs down (with aid of a compression sack) to about the size of a basketball. Relatively heavy, but very warm and cozy.  Have used a lot in five years and it's held up great. Eventually would like to upgrade to a lightweight down, but for the money, it's hard to beat this bag. Full review

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

Top-Rated 3-Season Synthetic Sleeping Bags

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user rating: 4.5 of 5 (9)
Mountain Hardwear Lamina 0°
$210
user rating: 5 of 5 (2)
Snugpak Jungle
$49
user rating: 5 of 5 (2)
Eureka! Wild Basin 0
$65 - $84
user rating: 4.5 of 5 (6)
ALPS Mountaineering Crescent Lake 20
$49 - $69
user rating: 4.5 of 5 (3)
The North Face Dolomite
$89 - $129
user rating: 4.5 of 5 (2)
Mountain Hardwear HyperLamina Flame 20
$166 - $255
user rating: 4.5 of 5 (2)
REI Lumen +25
$159
user rating: 4.5 of 5 (2)
NEMO Mezzo Loft Luxury
$187
user rating: 4.5 of 5 (2)
Kelty Tuck 20 / EN 22
$63 - $99
user rating: 4.5 of 5 (2)
ALPS Mountaineering Desert Pine 20
$49 - $69
user rating: 5 of 5 (1)
NEMO Mezzo Loft
$172 - $229
user rating: 5 of 5 (1)
ALPS Mountaineering Echo Lake 20
$40 - $49
user rating: 4 of 5 (24)
Marmot Trestles 15
$80 - $129
user rating: 4 of 5 (15)
Big Agnes Encampment 15°
$135 - $199
user rating: 4 of 5 (14)
The North Face Aleutian 3S Bx
$80 - $144
user rating: 4 of 5 (8)
Marmot Trestles 30
$59 - $119
user rating: 4 of 5 (8)
Mountain Hardwear Lamina 20°
$200 - $219
user rating: 4 of 5 (4)
Marmot Trestles 0
$104 - $158
user rating: 4.5 of 5 (1)
Eureka! Grasshopper 30
$25 - $39
user rating: 4.5 of 5 (1)
Marmot Cloudbreak 20
$199
user rating: 4.5 of 5 (1)
Big Agnes Buell 30
$82 - $119
user rating: 4 of 5 (1)
Mountain Hardwear Laminina Z Flame
$129 - $199
user rating: 3.5 of 5 (68)
The North Face Cat's Meow
$100 - $219
user rating: 3.5 of 5 (7)
Kelty Mistral 20
$90
user rating: 3.5 of 5 (4)
Big Agnes Hog Park 20°
$142 - $349
user rating: 3 of 5 (4)
Eureka! Cimarron 15
$59
user rating: 3 of 5 (1)
ALPS Mountaineering Crescent Lake 0
$48 - $69
user rating: 3 of 5 (1)
ALPS Mountaineering Blue Springs 20
$45 - $69
user rating: 2.5 of 5 (1)
Therm-a-Rest Saros 20
$130 - $151
user rating: 2 of 5 (1)
Mountain Hardwear Lamina Z Flame 22°
$129 - $199
user rating: 2 of 5 (1)
Musuc Selk'Bag 4G Patagon
$150 - $199
user rating: 5 of 5 (1)
Mountain Hardwear Mountain Goat 20°
$115
Therm-a-Rest Centari 5
$120
Marmot Mavericks 30 Semi Rec
$82 - $109
Mountain Hardwear Lamina Z Torch
$136 - $229
Eureka! Bero 30F
$60 - $84
Mammut Alpine UL 3-Season
$270
Marmot Cloudbreak 30
$100 - $188
Big Agnes Pristine 17
$210
Marmot Mavericks 20 Semi Rec
$95
Cabela's Getaway 30F Mummy Sleeping Bag
$100
Mammut Alpine UL Winter
$350
The North Face Dolomite 20/-7
$89 - $129
Alite Sexy Hotness Sleeping Bag
$143
Cabela's Mountain Trapper 0F Sleeping Bag
$100 - $129
Mountain Equipment Matrix I
$232
Slumberjack Borderland 0 Dual Zipper
$92
Rab Ignition 5
$210
Peregrine Contour 20
$70
Marmot Mavericks Double Wide 30
$158
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