3-Season Synthetic Sleeping Bags

Brands

Marmot
Slumberjack
Mountain Hardwear
Therm-a-Rest
Cascade Designs
Teton Sports
Eureka!
REI
Ledge
Wiggy's

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

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

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

Top-Rated 3-Season Synthetic Sleeping Bags

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

Marmot Trestles 15
user rating: 4 of 5 (20)
Marmot
Trestles 15
reviewed Oct 12, 2014
$87 - $129
Slumberjack Esplanade +20ºF
user rating: 4 of 5 (2)
Slumberjack
Esplanade +20ºF
reviewed Oct 2, 2014
$80 MSRP
Marmot Cloudbreak 20
user rating: 4.5 of 5 (1)
Marmot
Cloudbreak 20
reviewed Sep 24, 2014
$198 - $209
Mountain Hardwear Pinole 20°
user rating: 4 of 5 (5)
Mountain Hardwear
Pinole 20°
reviewed Aug 14, 2014
$112 - $140
Therm-a-Rest Capella 20
user rating: 1.5 of 5 (1)
Therm-a-Rest
Capella 20
reviewed Jul 3, 2014
$200 - $209
 
user rating: 4 of 5 (2)
Cascade Designs
Therm-A-Nest
reviewed Jun 18, 2014
Teton Sports Tracker +5°F
user rating: 4 of 5 (1)
Teton Sports
Tracker +5°F
reviewed Jun 10, 2014
 
user rating: 4.5 of 5 (6)
Mountain Hardwear
Crazy Legs 20°
reviewed May 23, 2014
discontinued
Eureka! Kaycee 0ºF
user rating: 4.5 of 5 (1)
Eureka!
Kaycee 0ºF
reviewed Mar 26, 2014
$120 - $129
REI Zephyr +15
user rating: 3.5 of 5 (6)
REI
Zephyr +15
reviewed Mar 24, 2014
discontinued
Ledge Featherlite +20
user rating: 3.5 of 5 (5)
Ledge
Featherlite +20
reviewed Mar 12, 2014
Wiggy's Ultra Light
user rating: 4.5 of 5 (9)
Wiggy's
Ultra Light
reviewed Feb 22, 2014
$166
 
user rating: 3 of 5 (6)
Storm Shield
X-1100
reviewed Jan 20, 2014
discontinued
Jack Wolfskin Touch the Clouds
user rating: 5 of 5 (1)
Jack Wolfskin
Touch the Clouds
reviewed Jan 9, 2014
discontinued
Musuc Selk'Bag 4G Patagon
user rating: 2 of 5 (1)
Musuc
Selk'Bag 4G Patagon
reviewed Nov 10, 2013
$168
REI Zephyr +20
user rating: 4.5 of 5 (1)
REI
Zephyr +20
reviewed Sep 19, 2013
Marmot Trestles 30
user rating: 4 of 5 (7)
Marmot
Trestles 30
reviewed Sep 17, 2013
$79 - $109
Mountain Hardwear Lamina 0°
user rating: 4.5 of 5 (9)
Mountain Hardwear
Lamina 0°
reviewed Sep 12, 2013
$168 - $300
The North Face Snowshoe
user rating: 4.5 of 5 (10)
The North Face
Snowshoe
reviewed Sep 11, 2013
discontinued
Big Agnes Hog Park 20°
user rating: 3.5 of 5 (3)
Big Agnes
Hog Park 20°
reviewed Aug 9, 2013
$136 - $339
The North Face Bighorn
user rating: 3.5 of 5 (4)
The North Face
Bighorn
reviewed Jul 22, 2013
discontinued
Mountain Hardwear UltraLamina 15°
user rating: 4.5 of 5 (7)
Mountain Hardwear
UltraLamina 15°
reviewed Jul 19, 2013
$220 - $275
ALPS Mountaineering Diamondback +30
user rating: 4.5 of 5 (1)
ALPS Mountaineering
Diamondback +30
reviewed Jul 16, 2013
The North Face Blaze 20
user rating: 4 of 5 (1)
The North Face
Blaze 20
reviewed Jul 16, 2013
discontinued
ALPS Mountaineering Blue Springs 20
user rating: 3 of 5 (1)
ALPS Mountaineering
Blue Springs 20
reviewed Jun 27, 2013
$65 - $69
Big Agnes Encampment 15°
user rating: 4 of 5 (14)
Big Agnes
Encampment 15°
reviewed Jun 20, 2013
$144 - $189
MontBell Super Spiral Burrow Bag #3
user rating: 3 of 5 (2)
MontBell
Super Spiral Burrow Bag #3
reviewed Jun 17, 2013
$159 MSRP
REI Polar Pod +25
user rating: 5 of 5 (2)
REI
Polar Pod +25
reviewed Jun 11, 2013
$51 - $100
ALPS Mountaineering Echo Lake 20
user rating: 5 of 5 (1)
ALPS Mountaineering
Echo Lake 20
reviewed May 30, 2013
$50 - $69
Eagles Nest Outfitters Ember Underquilt
user rating: 3 of 5 (4)
Eagles Nest Outfitters
Ember Underquilt
reviewed May 30, 2013
$131 - $174
 
user rating: 4 of 5 (1)
Musuc
Selk' Bag 3G
reviewed Apr 25, 2013
Kelty Light Year XP 20
user rating: 4.5 of 5 (3)
Kelty
Light Year XP 20
reviewed Apr 7, 2013
$100 - $109
Chinook Sportster Hooded Tapered 23F
user rating: 3.5 of 5 (1)
Chinook
Sportster Hooded Tapered 23F
reviewed Apr 3, 2013
Ledge Featherlite 0
user rating: 4 of 5 (2)
Ledge
Featherlite 0
reviewed Apr 1, 2013
Marmot Trestles 0
user rating: 4 of 5 (3)
Marmot
Trestles 0
reviewed Mar 11, 2013
$111 - $149
Slumberjack Super Guide +30°F
user rating: 3 of 5 (12)
Slumberjack
Super Guide +30°F
reviewed Mar 10, 2013
discontinued
ALPS Mountaineering Crescent Lake 20
user rating: 5 of 5 (4)
ALPS Mountaineering
Crescent Lake 20
reviewed Mar 3, 2013
$56
High Peak Summit 20
user rating: 4.5 of 5 (1)
High Peak
Summit 20
reviewed Feb 25, 2013
Mountain Hardwear Mountain Goat 20°
user rating: 5 of 5 (1)
Mountain Hardwear
Mountain Goat 20°
reviewed Feb 23, 2013
$92 - $115
The North Face Tigger
user rating: 4 of 5 (2)
The North Face
Tigger
reviewed Feb 23, 2013
discontinued
Wiggy's Super Light
user rating: 4 of 5 (12)
Wiggy's
Super Light
reviewed Feb 23, 2013
$191
 
user rating: 3.5 of 5 (7)
The North Face
Snowshoe 3D
reviewed Feb 3, 2013
discontinued
VauDe Snow Cloud 800
user rating: 2 of 5 (1)
VauDe
Snow Cloud 800
reviewed Jan 17, 2013
The North Face Orion
user rating: 4 of 5 (2)
The North Face
Orion
reviewed Jan 17, 2013
discontinued
Coleman Crescent 15
user rating: 3.5 of 5 (1)
Coleman
Crescent 15
reviewed Jan 17, 2013
$60 MSRP
EMS Boreal 20
user rating: 4.5 of 5 (5)
EMS
Boreal 20
reviewed Jan 5, 2013
$169 - $209
Mountain Hardwear Lamina 20°
user rating: 4 of 5 (7)
Mountain Hardwear
Lamina 20°
reviewed Dec 14, 2013
$140 - $220
Eureka! Wild Basin 0
user rating: 5 of 5 (2)
Eureka!
Wild Basin 0
reviewed Nov 19, 2012
$95
Mountain Hardwear UltraLamina 32°
user rating: 3.5 of 5 (6)
Mountain Hardwear
UltraLamina 32°
reviewed Jul 1, 2014
$190 - $255
 
user rating: 4 of 5 (4)
Marmot
Aspen 15 Explorer
reviewed Oct 31, 2012
discontinued
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