3-Season Synthetic Sleeping Bags

Brands

Wenzel
Eureka!
Coleman
ALPS Mountaineering
Slumberjack
REI
Kelty
Big Agnes
Sierra Designs
Marmot

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

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

Slumberjack Esplanade +20ºF

rated 4 of 5 stars The style and construction is great, however I wish it would compress more than it does. Very lightweight. The collar feature is great. I have slept in 40 degree weather in just a tee shirt and shorts and was actually too warm. Had to unzip! Great bag for camping trips, but not suitable for fitting in to a backpack for more than three-night hiking trips. Full review

Marmot Cloudbreak 20

rated 4.5 of 5 stars I would recommend this bag for friends. Good bag that stays nice and warm. Stays warm all night and has a good drawstring. Perfect length for me 6'. Stays pretty dry in the stuff sack.& I use it in a tent so I'm not sure how well it would do for dew. Stuff sack is nice and tuff and it stuffs to a pretty compact size. This pack seems very well made. Marmot did a great job. I would get this pack again if I had a choice. Full review

Mountain Hardwear Pinole 20°

rated 5 of 5 stars Great bag for the budget backpacker. Compresses well for a 20deg synthetic, and keeps me warm down to rated temp! My son and I needed a couple of packable, cold weather bags for backpacking with his Scout Troop.  Considering budgeting for outfitting us both with packs, bags, sleeping pads, and miscellaneous gear, we were looking at less expensive bags. Throw in that we're in the Southeast, where humidity and rain are always in the possibilities, down bags didn't make sense, either. I put some research… Full review

Therm-a-Rest Capella 20

rated 1.5 of 5 stars Bulkier than expected. Overpriced. Way overpriced. "System" of two stretch bands to secure to same brand of matched sleeping pad fails. I slid off every night, finding hip or shoulder on ground. Bag slides OFF the pad length-wise — down off the foot of the pad, too. Too hot for temps in 40-50s. Comes with a simple stuff sack, should have a compression sack. I bought one and it compressed the bag to at least 1/2 of the provided stuff sack. The bag was too bulky otherwise. Despite being made for… Full review

Mountain Hardwear Men's UltraLamina 32°

rated 4 of 5 stars Light, packable. I love this bag. I used it for a 5-night trip to Clear Creek in the Grand Canyon. The coldest night was about 38 degrees. I wore several layers most nights as the temp was low 40s high 30s, and I wasn't freezing. The thing I love most is how small and light it packs. Carrying everything around for 6 days, it's the weight and room it takes in my pack that matters, and this bag is excellent in both regards. I guess it could be warmer near the temp rating, but having researched bag… Full review

Top-Rated 3-Season Synthetic Sleeping Bags

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

Wenzel Santa Fe Mummy Sleeping Bag
Wenzel Santa Fe Mummy Sleeping Bag
$30
Eureka! Grasshopper 30
user rating: 4.5 of 5 (1)
Eureka! Grasshopper 30
$34
Eureka! Lady Bug 30
Eureka! Lady Bug 30
$35
Coleman Green Valley 30
Coleman Green Valley 30
$37
Coleman Brazos 20
Coleman Brazos 20
$40 MSRP
 
Coleman Richland Creek 30
$45 MSRP
ALPS Mountaineering Crescent Lake 20
user rating: 5 of 5 (4)
ALPS Mountaineering Crescent Lake 20
$45 - $67
Eureka! Copper River 30
Eureka! Copper River 30
$49
Slumberjack Forest 20
Slumberjack Forest 20
$49
Slumberjack Jenny 20
Slumberjack Jenny 20
$49
Slumberjack Big Scout 30°F
Slumberjack Big Scout 30°F
$49 - $59
Slumberjack Latitude +20°F
user rating: 3 of 5 (2)
Slumberjack Latitude +20°F
$49 - $69
Eureka! Caliber 15
Eureka! Caliber 15
$50
Eureka! Azalea 15F Mummy
Eureka! Azalea 15F Mummy
$50
 
Coleman Lassen
$50 MSRP
Slumberjack Girl Scout 30º
Slumberjack Girl Scout 30º
$50 MSRP
REI Polar Pod +25
user rating: 5 of 5 (2)
REI Polar Pod +25
$51 - $100
Eureka! Sandstone 30º
Eureka! Sandstone 30º
$52
Kelty Little Flower 20 Junior
Kelty Little Flower 20 Junior
$55 - $74
Big Agnes Little Red 15°
Big Agnes Little Red 15°
$55 - $99
Coleman Taos 25
Coleman Taos 25
$55 MSRP
Slumberjack Go-N-Grow +30°F
Slumberjack Go-N-Grow +30°F
$55 MSRP
Coleman Autumn Trails 20
Coleman Autumn Trails 20
$61
Sierra Designs Rosa 20
user rating: 5 of 5 (1)
Sierra Designs Rosa 20
$56
Eureka! Cayuga 30
Eureka! Cayuga 30
$57
Marmot Trestles 30
user rating: 4 of 5 (7)
Marmot Trestles 30
$59 - $109
REI Kindercone +30 Sleeping Bag
REI Kindercone +30 Sleeping Bag
$60
Slumberjack Ultimate 30°
Slumberjack Ultimate 30°
$60
Eureka! Cayuga 15
Eureka! Cayuga 15
$60
Kelty Mistral 20
user rating: 3.5 of 5 (7)
Kelty Mistral 20
$60 - $99
The North Face Dolomite
user rating: 4.5 of 5 (3)
The North Face Dolomite
$60 - $119
Coleman Crescent 15
user rating: 3.5 of 5 (1)
Coleman Crescent 15
$60 MSRP
 
Coleman Crescent
$60 MSRP
Eureka! Cimarron 15
user rating: 3 of 5 (4)
Eureka! Cimarron 15
$64
EMS Solstice 20
EMS Solstice 20
$64 - $79
Kelty Woobie Sleeping Bag
Kelty Woobie Sleeping Bag
$65
Coleman North Rim 0
user rating: 4 of 5 (2)
Coleman North Rim 0
$65 MSRP
 
Coleman Sabine 20
$65 MSRP
ALPS Mountaineering Crater Lake 20
ALPS Mountaineering Crater Lake 20
$66
REI Nodder 25º
REI Nodder 25º
$80
Slumberjack Star Lake 20
Slumberjack Star Lake 20
$70
Slumberjack Latitude 0°F
Slumberjack Latitude 0°F
$70
Kelty Big Dipper 30 Junior
Kelty Big Dipper 30 Junior
$70 - $79
Kelty Mistral 0
user rating: 3 of 5 (1)
Kelty Mistral 0
$100 - $109
The North Face Aleutian 20/-7
The North Face Aleutian 20/-7
$70 - $129
Slumberjack Telluride 30º
Slumberjack Telluride 30º
$70 MSRP
Mountainsmith Kenosha 20
Mountainsmith Kenosha 20
$71 - $87
Slumberjack Lone Pine 20
Slumberjack Lone Pine 20
$74 - $79
Marmot Mavericks 30 Semi Rec
Marmot Mavericks 30 Semi Rec
$74 - $109
Marmot Sorcerer
Marmot Sorcerer
$74 - $89
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