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3-Season Synthetic Sleeping Bags

The best 3-season synthetic sleeping bags, reviewed and curated by the Trailspace community. The latest review was added on September 15, 2020. Stores' prices and availability are updated daily.

user rating: 4.5 of 5 (9)
Mountain Hardwear Lamina 0
$150 - $219
user rating: 4.5 of 5 (6)
ALPS Mountaineering Crescent Lake 20
$33
user rating: 4.5 of 5 (3)
Kelty Tuck 20
$12 - $99
user rating: 4.5 of 5 (2)
Mountain Hardwear Lamina 15
$135 - $279
user rating: 4 of 5 (24)
Marmot Trestles 15
$80 - $119
user rating: 4 of 5 (9)
Mountain Hardwear Pinole 20°
$100
user rating: 4 of 5 (8)
Marmot Trestles 30
$60 - $109
user rating: 4 of 5 (4)
Marmot Trestles 0
$103 - $159
user rating: 4 of 5 (3)
Teton Sports Tracker +5°F
$75
user rating: 4 of 5 (3)
Kelty Cosmic 20 (synthetic)
$127 - $170
user rating: 4.5 of 5 (1)
Mountain Hardwear Bozeman Torch 0
$105 - $139
user rating: 4.5 of 5 (1)
Big Agnes Buell 30
$90 - $119
user rating: 3.5 of 5 (68)
The North Face Cat's Meow
$120 - $199
user rating: 3.5 of 5 (7)
Kelty Mistral 20
$48 - $59
user rating: 3 of 5 (1)
Kelty Mistral 0
$67 - $79
user rating: 5 of 5 (3)
Wiggy's Nautilus
user rating: 5 of 5 (2)
REI Polar Pod 25
$90 MSRP
user rating: 5 of 5 (2)
Snugpak Jungle
user rating: 5 of 5 (2)
Eureka! Wild Basin 0
$85 MSRP
user rating: 4.5 of 5 (5)
EMS Boreal 20
$149 MSRP
 
user rating: 4.5 of 5 (3)
Peak 1 Grey Fox
user rating: 4.5 of 5 (3)
Kelty Light Year XP 20
$130 MSRP
user rating: 4.5 of 5 (2)
Mountain Hardwear HyperLamina Flame 20
user rating: 4.5 of 5 (2)
EMS Boreal 0
$189 MSRP
user rating: 4.5 of 5 (2)
REI Lumen +25
$149 MSRP
user rating: 4.5 of 5 (2)
NEMO Mezzo Loft Luxury
user rating: 4.5 of 5 (2)
ALPS Mountaineering Desert Pine 20
$90 MSRP
user rating: 5 of 5 (1)
NEMO Mezzo Loft
 
user rating: 5 of 5 (1)
Texsport Big Bend Sleeping Bag
user rating: 5 of 5 (1)
Wiggy's Hunter Super Lt
$275 MSRP
user rating: 5 of 5 (1)
Mountain Hardwear UltraLamina 0°
$220 MSRP
user rating: 5 of 5 (1)
Slumberjack Timberjack 0
$85 MSRP
user rating: 5 of 5 (1)
Mountain Hardwear HyperLamina Torch 0
user rating: 4 of 5 (15)
Big Agnes Encampment 15°
$180 MSRP
user rating: 4 of 5 (14)
Wiggy's Super Light
$218 MSRP
user rating: 4 of 5 (14)
The North Face Aleutian 3S Bx
$89 MSRP
user rating: 4 of 5 (10)
Wiggy's Ultra Light
user rating: 4 of 5 (10)
Sierra Designs Wild Bill 20
$120 MSRP
user rating: 4 of 5 (8)
Mountain Hardwear UltraLamina 15°
$205 MSRP
user rating: 4 of 5 (8)
Mountain Hardwear Lamina 20
$160 MSRP
user rating: 4 of 5 (6)
Eureka! Casper 15
$130 MSRP
 
user rating: 4 of 5 (4)
Ajungilak Kompakt
 
user rating: 4 of 5 (3)
Eurohike Backpacker Micro II
user rating: 4 of 5 (3)
Eureka! Silver City 30ºF
$110 MSRP
user rating: 4.5 of 5 (1)
High Peak Summit 20
user rating: 4.5 of 5 (1)
Eureka! Kaycee 0ºF
$160 MSRP
user rating: 4 of 5 (2)
Ledge Featherlite 0
 
user rating: 4 of 5 (2)
Cascade Designs Therm-A-Nest
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Recent 3-Season Synthetic Sleeping Bag Reviews

rated 2 of 5 stars
Wiggy's Ultra Light

Heavier than advertised, terrible customer service. This is one of two Wiggys sleeping bags I recently purchased, the other being a Superlight of the same design. When both came in I immediately inspected and weighed them only to find that each weighed in right at a pound  heavier than advertised; 4.25lbs for the Ultralight, and 5.06lbs for the Superlight. Since these were meant to be lightweight, warmer weather substitutes for the Ultima Thule bag  I have owned and loved for years I was pretty… Full review

rated 3 of 5 stars
Wiggy's Super Light

Bag failed to keep my feet warm at 30 degrees and you saw on different sites where people were having the same issue with the newer bags now. The older ones don't have that trouble. There is just not enough installation in the foot area in the new ones. Texted Jerry Wigutow about it and he had a very negative response about, told me first off get in a tent on a pad, then he told me to get a pair of booties. Then I sent him copies of other sites having the same trouble because he said he never had… Full review

rated 5 of 5 stars
Kelty Tuck 20

BEST sleeping bag for hiking I've ever owned. Personal comfort rating at 30-70 degrees F. I go over the dimensions and material in my video review which you can find here: First off, I love this sleeping bag. The coldest temp I've slept in this bag was around 25 degrees F, which was a bit cool but bearable. The warmest temp I've used this bag in was probably around 70-75 degrees F, which was still very comfortable due to the fact you can vent the feet side of the bag. However if you're sleeping… Full review

rated 3 of 5 stars
NEMO Punk 20

Child-sized comfortable and cozy bag with adjustable length to keep little ones from getting lost in the bottom. Partially hooded and made of soft materials for snuggling. Full featured and functional for backcountry use, definitely not a toy. Manufacturers Specs: Shell: 63D Polyester Ripstop w/ DWR Lining: 50D Polyester Taffeta w/ DWR Insulation: Stratofiber synthetic Temp Rating: 20°f/-7°c Target Age/Size: 4-8 years old or under 60” long Claimed Weight: 2 lb , 13 oz / 1.27 kg Features &… Full review

rated 3 of 5 stars
L.L.Bean Ultralight Sleeping Bag, 0 Mummy

LL Bean's Ultralight 0 Degree Mummy Bag features Cross-Core technology, testing the boundaries of Aerogel and PrimaLoft Gold insulation. Theoretically, this design should increase the sleeping bag warmth-to-weight ratio. Finding the right sleeping bag can prove to be challenging. Features like sleeping bag loft, temperature rating, and weight can test even the most experienced backpackers. But LL Bean's 0 Degree Ultralight Sleeping Bag does a good job of implementing the outdoor industry's most… Full review

rated 5 of 5 stars
Mountain Hardwear HyperLamina Torch 0

Super bag for winter camping!! Totally worth your money. If it’s not below freezing, you may be hot though! Packable, kind of, and big....but you can pack it. Not the best for ultra light backpacking, but if you are doing a weekend trip or a couple nights at a campground, it’s easy to use! Best use is camping in the back of your truck for some winter adventures! I took this bag out In February for some winter camping in the Eastern Sierras and this bag kept me super warm. One tip is to put some… Full review

rated 4.5 of 5 stars
Mountain Hardwear Bozeman Torch 0

BIG BANG FOR THE BUCK! HIGH END FEATURES for a low-priced, quality, 0 degree bag. Great whether backpacking or car camping. Cool night comfort in a fairly light, synthetic bag. Proper dimensions for a regular length bag—not too tight or too loose, with two drawstrings for colder nights. Big bang for your buck! After some seriously thorough searching, I bought a Torch for a great sale price. There is simply no other QUALITY brand bag I could find with what this one has to offer, for near the price. Full review

rated 3.5 of 5 stars
Teton Sports Tracker +5°F

Nice for the price. Not a 5-degree bag. Long is not long. Long is not long. At 5' 8" and chubby, I fit snugly. I can't see anyone over 6 feet fitting in the LONG bag. Zipper sticks at the top when closing; opening was easy. Used several times in the low 20s and started feeling chilly. Not a 5-degree bag; I don't think it would be good below 20 degrees without a liner or extra clothes. Drawstring on the hood worked well; felt no air leaks along zipper. Pocket inside by chest is too small for glasses… Full review

rated 3 of 5 stars
Mountain Hardwear Pinole 20°

Decent bag with some concerns. I bought this bag because I wanted something a little smaller. Sacrificing warmth I went for a three-season bag with the option of adding a liner. If in higher elevations, as I usually am, some long johns and merino were enough to keep me toasty. My only issues are the zipper must be carefully opened and closed so as to not get caught, which it is prone to do. The hood system is simple and effective, but being a spinner when I sleep I tend not to use it or else I get… Full review