3-Season Synthetic Sleeping Bags

Brands

Mountain Hardwear
The North Face
Wilderness Experience
Big Agnes
Sierra Designs
Wenzel
NEMO
Slumberjack
Marmot
Eurohike

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

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

Sierra Designs Wild Bill 20

rated 4 of 5 stars No complaints. It's been a good bag for temperate climate weather. I've been using this for nearly 9 years, but only a handful of times. Still looks new and works exactly as I expected. I haven't exactly pushed its limits as I'm a fair-weather backpacker whenever possible.  Full review

Wenzel Reverie Mummy 30

rated 4 of 5 stars This bag is used only by my dogs. I bought it for them. They have never shared it. So this review is a bit skewed since I bought this bag strictly for my dogs.  My Dalmatian, Ferrari, was getting very cold at night while camping in October and November for 4-day trips in 2015 (it got down to the high 20's or low 30's at night but was supposed to be in the 40's) and I was snug in my sleeping bag and I felt horrible.  I piled every fleece, every spare jacket, towel, anything to keep her warm the… Full review

NEMO Mezzo Loft

rated 5 of 5 stars FINALLY, after 40 odd years I can sleep ON the pad instead of climbing back on repeatedly through the night. I'm a "mobile" sleeper and always have an issue with staying on my pads. I've tried everything, including some kind of tacky spray to keep my bags from slipping off the pads years ago. I've packed heavier pads just to get that pad wide enough to fall off of a little less. I looked at Big Agnes bags, but never saw one that I felt would be an upgrade from my old North Face down bag. So, I wiggle… Full review

Slumberjack Timberjack 0

rated 5 of 5 stars Big, wide, roomy yet retains heat very well. Very warm and toasty. Did I mention big? I ordered this and went camping with my two dogs. I have been camping before and so has my one dog. But not for a few years. I ordered in a number of things for camping after quite a bit of burrowing through research, comments, reviews, recommendations and personal comments before deciding I wanted to go with a rectangular bag because of the way I sleep and knowing I would use it for primitive car camping (with… Full review

Top-Rated 3-Season Synthetic Sleeping Bags

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

user rating: 2 of 5 (1)
Mountain Hardwear Lamina Z Flame 22° reviewed Aug 22, 2016
$179 - $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
$82 - $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
$172 - $229
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 of 5 (1)
Mountain Hardwear Lamina 32° reviewed Jun 2, 2016
user rating: 4.5 of 5 (2)
NEMO Mezzo Loft Luxury reviewed Jun 2, 2016
$187 - $249
user rating: 4 of 5 (4)
Marmot Trestles 0 reviewed Jun 1, 2016
$111 - $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 of 5 (6)
Mountain Hardwear Pinole 20° reviewed Mar 16, 2016
$100 MSRP
user rating: 4.5 of 5 (6)
ALPS Mountaineering Crescent Lake 20 reviewed Jan 6, 2016
$63
 
user rating: 5 of 5 (1)
Snugpak Jungle reviewed Dec 18, 2015
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
$142 - $349
user rating: 4.5 of 5 (2)
Kelty Tuck 20 / EN 22 reviewed Aug 26, 2015
$75 - $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
$130 - $151
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 (23)
Marmot Trestles 15 reviewed Feb 2, 2016
$87 - $129
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
$140 - $167
 
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 (6)
REI Zephyr +15 reviewed Mar 24, 2014
discontinued
 
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
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