3-Season Synthetic Sleeping Bags

Brands

Eureka!
ALPS Mountaineering
The North Face
NEMO
Kelty
Mountain Hardwear
REI
Marmot
Big Agnes
Slumberjack

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: 5 of 5 (2)
Eureka! Wild Basin 0
$74 - $84
user rating: 4.5 of 5 (6)
ALPS Mountaineering Crescent Lake 20
$63
user rating: 4.5 of 5 (3)
The North Face Dolomite
$62 - $89
user rating: 4.5 of 5 (2)
NEMO Mezzo Loft Luxury
$187 - $249
user rating: 4.5 of 5 (2)
Kelty Tuck 20 / EN 22
$80 - $99
user rating: 4.5 of 5 (2)
ALPS Mountaineering Desert Pine 20
$65
user rating: 5 of 5 (1)
NEMO Mezzo Loft
$172 - $229
user rating: 5 of 5 (1)
Mountain Hardwear HyperLamina Flame
$240 - $255
user rating: 5 of 5 (1)
ALPS Mountaineering Desert Pine 0
$84
user rating: 5 of 5 (1)
REI Lumen +25
$159
user rating: 5 of 5 (1)
ALPS Mountaineering Echo Lake 20
$40 - $69
user rating: 4 of 5 (23)
Marmot Trestles 15
$87 - $129
user rating: 4 of 5 (15)
Big Agnes Encampment 15°
$135 - $189
user rating: 4 of 5 (14)
The North Face Aleutian 3S Bx
$109 - $119
user rating: 4 of 5 (8)
Mountain Hardwear Lamina 20°
$145 - $220
user rating: 4 of 5 (7)
Marmot Trestles 30
$59 - $109
user rating: 4 of 5 (4)
Marmot Trestles 0
$111 - $149
user rating: 4 of 5 (3)
Eureka! Silver City 30ºF
$75
user rating: 4.5 of 5 (1)
Eureka! Grasshopper 30
$35 - $39
user rating: 4.5 of 5 (1)
Marmot Cloudbreak 20
$159 - $209
user rating: 4.5 of 5 (1)
Big Agnes Buell 30
$82 - $109
user rating: 4 of 5 (1)
Mountain Hardwear Laminina Z Flame
$134 - $199
user rating: 3.5 of 5 (68)
The North Face Cat's Meow
$125 - $199
user rating: 3.5 of 5 (7)
Kelty Mistral 20
$86 - $89
user rating: 3.5 of 5 (4)
Big Agnes Hog Park 20°
$140 - $262
user rating: 3 of 5 (4)
Eureka! Cimarron 15
$55 - $68
user rating: 3 of 5 (2)
Slumberjack Latitude +20°F
$40 - $174
user rating: 3 of 5 (1)
ALPS Mountaineering Blue Springs 20
$60 - $65
user rating: 3 of 5 (1)
Kelty Mistral 0
$85
user rating: 2.5 of 5 (1)
Therm-a-Rest Saros
$130 - $151
user rating: 2 of 5 (1)
Mountain Hardwear Lamina Z Flame 22°
$134 - $199
user rating: 2 of 5 (1)
Musuc Selk'Bag 4G Patagon
$150
user rating: 1.5 of 5 (1)
Therm-a-Rest Capella 20
$140 - $167
user rating: 5 of 5 (1)
Mountain Hardwear Mountain Goat 20°
$99
Marmot Mavericks 30 Semi Rec
$75 - $98
Mountain Hardwear Lamina Z Torch
$157 - $229
Eureka! Bero 30F
$78 - $129
REI Carina 32 Sleeping Bag
$139
Mammut Alpine UL 3-Season
$270
Marmot Cloudbreak 30
$135 - $188
Mountain Equipment Matrix III
$297
Liberty Mountain Peregrine Saker 20
$72
Cabela's Getaway 30F Mummy Sleeping Bag
$130
Mammut Alpine UL Winter
$350
The North Face Dolomite 20/-7
$99
Coleman Green Valley 30
$37
Cabela's Mountain Trapper 0F Sleeping Bag
$84 - $104
Coleman 30F Cotton/Flannel Sleeping Bag
$90
Mountain Equipment Matrix I
$188
Slumberjack Borderland 0 Dual Zipper
$120
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