3-Season Synthetic Sleeping Bags

Brands

Mountain Hardwear
Wiggy's
Eureka!
REI
EMS
The North Face
Kelty
ALPS Mountaineering
Downright
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

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

Cascade Designs Therm-A-Nest

rated 5 of 5 stars This tragically discontinued "kid'tainer" is one of the most ingenious sleep systems ever invented for lightweight tent camping. Manufactured in 1993, this 1 lb. 9 oz. sleep system by the makers of Therm-a-Rest is a great option for parents who want to backpack with their little ones. The upper portion is basically a sleeping bag. The sheet-like lower portion forms a pocket for your 3/4 Therm-a-Rest mattress (not included). It is 34"x60" which fits a child up to 54" (about 10 yrs. old, 70 lbs.). Full review

Teton Sports Tracker +5°F

rated 4 of 5 stars Great cold weather sleeping bag. Nice compress-ability and the stuff sack is good. I purchased this sleeping bag to replace an older 0 degree synthetic from Eureka. This bag has a similar rating at +5 but compresses way smaller than the Eureka bag. The material of the outer shell is a nice durable ripstop nylon. The inner lining is different, it has a nice texture to it and isn't like most bags with the shiny nylon feel. There are zipper pullers inside and out to make the closing easier but the… Full review

Mountain Hardwear Crazy Legs 20°

rated 4.5 of 5 stars Mountain Hardwear eggplant Crazy Legs 20 degree left hand zipper mummy bag. I've had my eggplant left-hand MH 20 degree bag for about 15 years and though I've had to wash her like seven times (old roommate's cat puddled on it) she still keeps me warm in the PNW nights and compresses down and is super lightweight. Full review

The North Face Men's Cat's Meow

rated 2 of 5 stars This is a very popular yet overpriced and underperforming sleeping bag best used during warm weather. The foot box is very small, while the torso area is extra roomy. The small zippered breast pocket is very useful for keeping earplugs or hearing aids, until the material gives out after a few months of use. The small flap of material that covers the soft nylon zipper is at the worst length possible, guaranteeing that the zipper will snag on almost every use. I am not a North Face fan after using… Full review

Marmot Men's Trestles 15

rated 4 of 5 stars This synthetic bag will take you where you need to go, on a budget and in style. Its rating runs true (depending on how warm of a sleeper you are, of course), and will stave off the cold even in shoulder seasons. It is a must-have sleeping bag for those new weekend warriors and those on a budget. I've had this bag for a year now and am very pleased with how it has taken care of me. It is a great bag for those needing warmth but not ready to make the plunge into pricey down bags. I've used it in… Full review

Eureka! Kaycee 0ºF

rated 4.5 of 5 stars Nobody likes to be cold when they're camping. Having a good sleeping bag to keep you warm all night is even more important when you are winter camping. I recently tried out the Eureka! KAYCEE Zero Degree sleeping bag on a winter trek in Ontario and stayed warm all night long. The Eureka! KAYCEE sleeping bag is a performance mummy sleeping bag rated to a low of zero degrees fahrenheit  or minus 18 degrees celcius. On a recent winter outing I used this sleeping bag one night when the temperature… Full review

REI Women's Zephyr +15

rated 4 of 5 stars Great bag, still a little cold, but very durable. I still get chilly in this bag far above 15 degrees, a silk liner has helped a ton with that though. Otherwise this bag has held up to 3 years of hard abuse and doesn't have a tear on it. Love the pillow feature and that it is left handed and zips with my boyfriend's. Full review

Top-Rated 3-Season Synthetic Sleeping Bags

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

Mountain Hardwear Flip 25°/40°
user rating: 5 of 5 (3)
Mountain Hardwear
Flip 25°/40°
$140
Wiggy's Ultra Light
user rating: 4.5 of 5 (9)
Wiggy's
Ultra Light
$160
Mountain Hardwear Lamina 0°
user rating: 4.5 of 5 (9)
Mountain Hardwear
Lamina 0°
$210 - $300
Eureka! Wild Basin 0
user rating: 5 of 5 (2)
Eureka!
Wild Basin 0
$95
REI Polar Pod +25
user rating: 5 of 5 (2)
REI
Polar Pod +25
$62 - $100
Mountain Hardwear UltraLamina 15°
user rating: 4.5 of 5 (7)
Mountain Hardwear
UltraLamina 15°
$260 - $275
EMS Boreal 20
user rating: 4.5 of 5 (5)
EMS
Boreal 20
$135 - $146
The North Face Dolomite
user rating: 4.5 of 5 (3)
The North Face
Dolomite
$67 - $119
Kelty Light Year XP 20
user rating: 4.5 of 5 (3)
Kelty
Light Year XP 20
$100 - $109
EMS Boreal 0
user rating: 4.5 of 5 (2)
EMS
Boreal 0
$175
ALPS Mountaineering Echo Lake 20
user rating: 5 of 5 (1)
ALPS Mountaineering
Echo Lake 20
$50 - $57
Downright Tundra
user rating: 5 of 5 (1)
Downright
Tundra
$39
Marmot Trestles 15
user rating: 4 of 5 (19)
Marmot
Trestles 15
$76 - $129
The North Face Aleutian 3S Bx
user rating: 4 of 5 (14)
The North Face
Aleutian 3S Bx
$79 - $119
Big Agnes Encampment 15°
user rating: 4 of 5 (14)
Big Agnes
Encampment 15°
$104 - $189
Wiggy's Super Light
user rating: 4 of 5 (12)
Wiggy's
Super Light
$174
Sierra Designs Wild Bill 20
user rating: 4 of 5 (9)
Sierra Designs
Wild Bill 20
$120
Marmot Trestles 30
user rating: 4 of 5 (7)
Marmot
Trestles 30
$69 - $109
Mountain Hardwear Lamina 20°
user rating: 4 of 5 (7)
Mountain Hardwear
Lamina 20°
$145 - $220
Eureka! Casper 15
user rating: 4 of 5 (5)
Eureka!
Casper 15
$99 - $109
Mountain Hardwear Pinole 20°
user rating: 4 of 5 (4)
Mountain Hardwear
Pinole 20°
$91 - $140
Eureka! Silver City 30ºF
user rating: 4 of 5 (3)
Eureka!
Silver City 30ºF
$70 - $99
Kelty Cosmic 20°
user rating: 4 of 5 (3)
Kelty
Cosmic 20°
$89 - $124
Marmot Trestles 0
user rating: 4 of 5 (3)
Marmot
Trestles 0
$108 - $149
Kelty Cosmic 0°
user rating: 4.5 of 5 (1)
Kelty
Cosmic 0°
$98 - $199
The North Face Aleutian 4S 0
user rating: 4.5 of 5 (1)
The North Face
Aleutian 4S 0
$111
Eureka! Kaycee 0ºF
user rating: 4.5 of 5 (1)
Eureka!
Kaycee 0ºF
$120 - $129
ALPS Mountaineering Diamondback +30
user rating: 4.5 of 5 (1)
ALPS Mountaineering
Diamondback +30
$78
Marmot Merlin
user rating: 4 of 5 (1)
Marmot
Merlin
$126
The North Face Cat's Meow
user rating: 3.5 of 5 (67)
The North Face
Cat's Meow
$120 - $189
Kelty Mistral 20
user rating: 3.5 of 5 (6)
Kelty
Mistral 20
$59 - $96
Mountain Hardwear UltraLamina 32°
user rating: 3.5 of 5 (6)
Mountain Hardwear
UltraLamina 32°
$171 - $255
Big Agnes Hog Park 20°
user rating: 3.5 of 5 (3)
Big Agnes
Hog Park 20°
$170 - $339
Slumberjack Esplanade +20ºF
user rating: 3.5 of 5 (1)
Slumberjack
Esplanade +20ºF
$90
Eagles Nest Outfitters Ember Underquilt
user rating: 3 of 5 (4)
Eagles Nest Outfitters
Ember Underquilt
3-Season Synthetic Sleeping Bag / Under Quilt
$175
Eureka! Cimarron 15
user rating: 3 of 5 (4)
Eureka!
Cimarron 15
$67
Slumberjack Latitude +20°F
user rating: 3 of 5 (2)
Slumberjack
Latitude +20°F
$49 - $69
Kelty Mistral 0
user rating: 3 of 5 (1)
Kelty
Mistral 0
$93 - $109
Marmot Mystic
user rating: 2 of 5 (1)
Marmot
Mystic
$127
Musuc Selk'Bag 4G Patagon
user rating: 2 of 5 (1)
Musuc
Selk'Bag 4G Patagon
$207 - $259
Therm-a-Rest Capella 20
user rating: 1.5 of 5 (1)
Therm-a-Rest
Capella 20
$200 - $209
ALPS Mountaineering Clearwater 20
user rating: 1 of 5 (1)
ALPS Mountaineering
Clearwater 20
$49
Slumberjack Ultimate 20°
user rating: 1.5 of 5 (9)
Slumberjack
Ultimate 20°
$80
Mountain Hardwear Mountain Goat 20°
user rating: 5 of 5 (1)
Mountain Hardwear
Mountain Goat 20°
$114 - $115
EMS Solstice 20
EMS
Solstice 20
$71 - $87
Marmot Mavericks 30 Semi Rec
Marmot
Mavericks 30 Semi Rec
$85 - $109
Marmot Cloudbreak 30
Marmot
Cloudbreak 30
$169 - $179
Mountain Equipment Matrix III
Mountain Equipment
Matrix III
$330 - $379
Big Agnes Pristine 17
Big Agnes
Pristine 17
$210 - $229
Marmot Mavericks 20 Semi Rec
Marmot
Mavericks 20 Semi Rec
$108 - $119
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