3-Season Synthetic Sleeping Bags

Brands

Mountainsmith
Marmot
Mountain Hardwear
Snugpak
The North Face
Wilderness Experience
Big Agnes
Sierra Designs
Wenzel
NEMO

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

Mountainsmith Crestone 0

rated 2 of 5 stars Should not be rated 0 degree Fahrenheit. Maybe 0 degree Celsius, because it may keep you alive at that temp if you wear some warm clothes with the bag, but even at 40 degree Fahrenheit it would not keep me warm with several layers on.  Full review

Marmot Men's Trestles 15

rated 4.5 of 5 stars Great bag from a great company at an even better price. Bought one for myself last fall. I got about seven trips in it so far, all on the AT or Mountains-to-Sea Trail in East Tennessee and Western North Carolina. The coldest night so far was 25 degrees and I had no issues with getting cold. You can get bags that compress smaller and weigh less, but not for 104$. The zippers can be a pain as most previous reviewers noted, however I think I have figured this out just through trial and error. Leave… Full review

Mountain Hardwear Pinole 20°

rated 4 of 5 stars The Mountain Hardwear Pinole 20 is a fine 3-season sleeping bag. I purchased this bag after much research on 20 degree bags. Some reviews had me second guessing. I'm glad that I ended up going with this product. I backpack/car camp/canoe camp in the mountains of East Tennessee and Western North Carolina. For me it made sense to go with a synthetic due to the humidity and moisture that I experience in my area.   Ready for use in the ever humid valley of South Fork Citico. I have spent an honest… Full review

Snugpak Jungle

rated 5 of 5 stars A roomy, versatile, lightweight sleeping bag with unique features that can also be used as a hammock top quilt. I bought the Snugpak Jungle Bag to include in a lightweight hammock camping system and to also serve as a summer weight sleeping bag for use in a bivy sack or for just under the stars all by itself. Originally I had considered the classic U.S. GI issue polyester filled poncho liner or patrol bag for this purpose but new and genuine army issue gear has dramatically escalated in price… Full review

Mountain Hardwear Lamina Z Flame 22°

rated 2 of 5 stars Seems very damp, clammy non breathable. Poor zipper. Thermal zoning is nonsense. Good quality construction, but uncomfortable due to above. Great construction quality, but the thermal zoning idea is the invention of a very clever monkey. It makes the bag hot in some places and cold in others, so the comfortable temperature range of this bag is limited. I have tested this bag extensively and had the same results almost every time. When I first tried it out it was like sleeping in a non-breathable… Full review

The North Face Men's Thunderhead 3D

rated 3.5 of 5 stars A nice lightweight entry level synthetic bag for 3-season camping. I bought this bag for my son and he has used it for the past 3 years. He really enjoyed it but has recently traded in for an upgraded model. I have used this bag a minimum of 5 times myself ranging from spring to fall. We compared notes and this is what we have come up with: Warmth: The bag is rated to 20°F. North Face touts, "Whether you’re camping in a goliath blizzard or huddling against cold, damp air, this awesome 20° bag… Full review

Wilderness Experience Latok

rated 5 of 5 stars The Latok was the first non-quilted Gore-Tex sleeping bag ever made. I designed it for Jim Donini's expedition to Latok 1 in Pakistan in the late '70s. WE didn't make very many, so enjoy your Latok as much as I have, cheers Greg Thomsen co-Founder Wilderness Experience. The Latok is a very warm sleeping bag because the outer shell is a non-quilted layer of Gore-Tex fabric—so no heat loss through the quilt lines. There is also a layer of aluminized foil sandwiched between the Polarguard insulation… Full review

Mountain Hardwear HyperLamina Flame

rated 5 of 5 stars Very good. Warmth: Very good  Fit and comfort: I will grow into my bag. I'm a teen. Comfort is very good. Full review

Big Agnes Buell 30

rated 4.5 of 5 stars Comfortable bag that packs down to a small size. I bought this bag with pack-ability in mind. I wanted to put it inside my backpack along with everything else. My old bag is so much bigger, in fact it just barely fits inside the pack by itself. I purchased a Granite Gear compression/dry sack (18L) along with this sleeping bag to get the smallest pack size possible. Now I can put my sleeping bag, tent, stove, hatchet, buck knife, fire starters, and more in the main compartment of the backpack. I… Full review

Top-Rated 3-Season Synthetic Sleeping Bags

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

user rating: 2 of 5 (1)
Mountainsmith Crestone 0 reviewed Sep 24, 2016
discontinued
user rating: 4 of 5 (24)
Marmot Trestles 15 reviewed Sep 20, 2016
$87 - $129
user rating: 4 of 5 (7)
Mountain Hardwear Pinole 20° reviewed Sep 20, 2016
$100 MSRP
user rating: 5 of 5 (2)
Snugpak Jungle reviewed Sep 17, 2016
user rating: 2 of 5 (1)
Mountain Hardwear Lamina Z Flame 22° reviewed Aug 22, 2016
$161 - $199
user rating: 4.5 of 5 (7)
The North Face Thunderhead 3D reviewed Aug 8, 2016
discontinued
 
user rating: 4 of 5 (2)
Wilderness Experience Latok reviewed Jul 30, 2016
discontinued
user rating: 5 of 5 (1)
Mountain Hardwear HyperLamina Flame reviewed Jul 12, 2016
$240 - $255
user rating: 4.5 of 5 (1)
Big Agnes Buell 30 reviewed Jul 5, 2016
$88 - $109
user rating: 4 of 5 (10)
Sierra Designs Wild Bill 20 reviewed Jun 18, 2016
$120 MSRP
user rating: 4 of 5 (1)
Wenzel Reverie Mummy 30 reviewed Jun 11, 2016
$55 MSRP
user rating: 5 of 5 (1)
NEMO Mezzo Loft reviewed Jun 10, 2016
$230
user rating: 5 of 5 (1)
Slumberjack Timberjack 0 reviewed Jun 9, 2016
$85 MSRP
user rating: 4 of 5 (15)
Big Agnes Encampment 15° reviewed Jun 3, 2016
$135 - $189
user rating: 4.5 of 5 (2)
NEMO Mezzo Loft Luxury reviewed Jun 2, 2016
$250
user rating: 4 of 5 (4)
Marmot Trestles 0 reviewed Jun 1, 2016
$97 - $149
 
user rating: 4 of 5 (3)
Eurohike Backpacker Micro II reviewed Apr 14, 2016
user rating: 4.5 of 5 (6)
The North Face Goliath 3D reviewed Apr 4, 2016
discontinued
user rating: 4.5 of 5 (6)
ALPS Mountaineering Crescent Lake 20 reviewed Jan 6, 2016
$63
user rating: 4 of 5 (13)
Wiggy's Super Light reviewed Oct 30, 2015
$218 MSRP
user rating: 3.5 of 5 (68)
The North Face Cat's Meow reviewed Oct 4, 2015
$130 - $199
user rating: 4 of 5 (2)
Teton Sports Tracker +5°F reviewed Sep 10, 2015
user rating: 3.5 of 5 (4)
Big Agnes Hog Park 20° reviewed Sep 10, 2015
$152 - $349
user rating: 4.5 of 5 (2)
Kelty Tuck 20 / EN 22 reviewed Aug 26, 2015
$90 - $99
user rating: 4.5 of 5 (9)
The North Face Elkhorn reviewed Jul 7, 2015
discontinued
user rating: 2.5 of 5 (1)
Therm-a-Rest Saros reviewed Jun 27, 2015
$140 - $189
user rating: 4 of 5 (1)
Mountain Hardwear Laminina Z Flame reviewed Jun 26, 2015
$179 - $199
 
user rating: 4.5 of 5 (4)
Moonstone Optima reviewed May 24, 2015
discontinued
user rating: 4 of 5 (6)
Eureka! Casper 15 reviewed Apr 16, 2015
$130 MSRP
 
user rating: 4 of 5 (2)
REI Nooksack UL +10 reviewed Apr 13, 2015
discontinued
 
user rating: 2 of 5 (1)
REI Shasta +15 reviewed Apr 11, 2015
discontinued
user rating: 4 of 5 (8)
Mountain Hardwear Lamina 20° reviewed Apr 11, 2015
$145 - $220
user rating: 2.5 of 5 (2)
Alpine Design 20 Degree Sleeping Bag reviewed Mar 26, 2015
user rating: 3 of 5 (2)
Wiggy's Sleeping Bag reviewed Feb 6, 2015
user rating: 5 of 5 (1)
Wiggy's Hunter Super Lt reviewed Jan 13, 2015
$275 MSRP
user rating: 4.5 of 5 (2)
ALPS Mountaineering Desert Pine 20 reviewed Jan 12, 2015
$65
user rating: 3.5 of 5 (7)
Kelty Mistral 20 reviewed Nov 16, 2014
$86 - $89
user rating: 4 of 5 (8)
Mountain Hardwear UltraLamina 15° reviewed Oct 31, 2014
$205 MSRP
user rating: 4 of 5 (2)
Slumberjack Esplanade +20ºF reviewed Oct 2, 2014
$80 MSRP
user rating: 4.5 of 5 (1)
Marmot Cloudbreak 20 reviewed Sep 24, 2014
$159 - $209
user rating: 1.5 of 5 (1)
Therm-a-Rest Capella 20 reviewed Jul 3, 2014
$200
 
user rating: 4 of 5 (2)
Cascade Designs Therm-A-Nest reviewed Jun 18, 2014
 
user rating: 4.5 of 5 (6)
Mountain Hardwear Crazy Legs 20° reviewed May 23, 2014
discontinued
user rating: 4.5 of 5 (1)
Eureka! Kaycee 0ºF reviewed Mar 26, 2014
$160 MSRP
 
user rating: 3.5 of 5 (5)
Ledge Featherlite +20 reviewed Mar 12, 2014
user rating: 4.5 of 5 (9)
Wiggy's Ultra Light reviewed Feb 22, 2014
 
user rating: 3 of 5 (6)
Storm Shield X-1100 reviewed Jan 20, 2014
discontinued
user rating: 5 of 5 (1)
Jack Wolfskin Touch the Clouds reviewed Jan 9, 2014
discontinued
user rating: 2 of 5 (1)
Musuc Selk'Bag 4G Patagon reviewed Nov 10, 2013
$150
user rating: 4.5 of 5 (1)
REI Zephyr +20 reviewed Sep 19, 2013
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