It’s amazing to think that a sleeping bag can weigh only 1 pound and keep you warm through the night. To pull this off, manufacturers utilize light and lofty down insulation, thin shell and lining fabrics, and a pared-down, narrow shape. For 2022, there is an extensive array of backpacking sleeping bags available, and we've organized them by weight in charts: unisex mummy sleeping bags, women's-specific bags, and hoodless sleeping bags and quilts for the UL crowd. To keep each list a manageable length, we trimmed a handful of redundant or obscure bags and set the following parameters: 2.5-pound max weight and 35-degree max temperature rating (if we’ve missed anything important, feel free to comment or email us and we will add it in). For our top picks, see our reviews of the best backpacking sleeping bags and best ultralight bags and quilts.


Unisex Mummy Sleeping Bags

Sleeping Bag Weight Price Temp Fill Shldr / Hip Stuff
Western Mountaineering HighLite 1 lb. $380 35°F 850-fill down 59 in. / 51 in. 6 x 10 in.
Therm-a-Rest Hyperion 32 1 lb. $460 32°F 900-fill down 57 in. / 50 in. 5.5 x 6 in.
Sea to Summit Spark SpII 28 1 lb. 1.3 oz. $389 28°F 850-fill down 59 in. / 51 in. Unavail.
Rab Neutrino 200 1 lb. 2.3 oz. $350 30°F 800-fill down Unavail. Unavail.
Montbell Seamless Down Hugger 800 1 lb. 2.7 oz. $309 30°F 800-fill down Unavail. Unavail.
Western Mountaineering SummerLite 1 lb. 3 oz. $440 32°F 850-fill down 59 in. / 51 in. 6 x 12 in.
REI Co-op Magma 30 1 lb. 3.8 oz. $349 30°F 850-fill down 63 in. / 57 in. 4.8 x 13 in.
Therm-a-Rest Hyperion 20 1 lb. 4 oz. $500 20°F 900-fill down 57 / 49.5 in. 6 x 8 in.
Mountain Hardwear Phantom 30 1 lb. 5.1 oz. $450 30°F 850-fill down 58 in. / 52 in. 13 x 6 in.
Feathered Friends Hummingbird 30 1 lb. 5.4 oz. $509 30°F 950-fill down 58 in. / 52 in. Unavail.
Sierra Designs Nitro 35 1 lb. 6 oz. $300 27°F 800-fill down 62 in. / 56 in. 13 x 7 in.
Rab Mythic 400 1 lb. 7 oz. $525 21°F 900-fill down Unavail. 7 x 17 in.
Feathered Friends Hummingbird YF 1 lb. 7 oz. $429 30°F 900-fill down 58 in. / 52 in. Unavail.
Marmot Hydrogen 1 lb. 7.3 oz. $369 23.4°F 800-fill down 61 in. / 56 in. 6 x 12 in.
Feathered Friends Hummingbird 20 1 lb. 8 oz. $569 20°F 950-fill down 58 in. / 52 in. Unavail.
Therm-a-Rest Parsec 32 1 lb. 8 oz. $400 32°F 800-fill down 62 in. / 57 in. 8.5 x 6 in.
The North Face Lynx 35 1 lb. 8.7 oz. $169 35°F Synthetic 62 in. / 57 in. 7 x 14 in.
Mountain Hardwear Phantom Alpine 1 lb. 9 oz. $480 27°F 850-fill down 57 in. / 51 in. 13 x 6 in.
Feathered Friends Swallow UL 30 1 lb. 9 oz. $529 30°F 950-fill down 60 in. / 56 in. Unavail.
Feathered Friends Swallow YF 30 1 lb. 9.5 oz. $449 30°F 900-fill down 60 in / 56 in. Unavail.
The North Face Chrysalis 20 1 lb. 9.7 oz. $385 20°F Synthetic 64 in. / 59 in. 7 x 14 in.
Feathered Friends Hummingbird YF 1 lb. 10.3 oz. $479 20°F 900-fill down 58 in. / 52 in. Unavail.
Sea to Summit Trek TkI 1 lb. 11 oz. $279 30°F 650-fill down 60 in. / 57 in. Unavail.
Feathered Friends Swallow UL 20 1 lb. 11 oz. $589 20°F 950-fill down 60 in. / 56 in. Unavail.
The North Face Gold Kazoo 1 lb. 12 oz. $270 23°F 700-fill down 62 in. / 57 in. 8 x 13 in.
Big Agnes Star Fire UL 20 1 lb. 12 oz. $500 20°F 850-fill down 60 in. / 54 in. 7.5 x 15 in.
Rab Neutrino 400 1 lb. 12 oz. $400 21°F 800-fill down 60 in. / 54 in. Unavail.
Therm-a-Rest Parsec 20 1 lb. 12 oz. $450 20°F 800-fill down 62 in. / 57 in. 7 x 8.5 in.
REI Co-op Magma 15 1 lb. 12.2 oz. $399 16°F 850-fill down 63 in. / 57 in. 7.5 x 15 in.
Mountain Hardwear Bishop Pass 30 1 lb. 12.6 oz. $235 30°F 650-fill down 62 in. / 53 in. 7 x 13.5 in.
Feathered Friends Swallow 20 YF 1 lb. 12.7 oz. $499 20°F 900-fill down 60 in. / 56 in. Unavail.
Western Mountaineering UltraLite 1 lb. 13 oz. $540 20°F 850-fill down 59 in. / 51 in. 7 x 13 in.
Western Mountaineering TerraLite 1 lb. 13 oz. $525 25°F 850-fill down 65 in. / 68 in. 7 x 13 in.
Marmot Ultra Elite 30 1 lb. 13 oz. $199 33°F Synthetic 60 in. / 56 in. 7 x 16 in.
Sea to Summit Ascent Acl 25 1 lb. 14 oz. $369 25°F 750-fill down 61 in. / 57 in. Unavail.
Therm-a-Rest Questar 32 1 lb. 14 oz. $330 32°F 650-fill down 63 in. / 61 in. 6.5 x 8.5 in.
Marmot Never Winter 30 1 lb. 14 oz. $219 26°F 650-fill down 62 in. / 57 in. 7.5 x 16 in.
Marmot Trestles Elite Eco 30 1 lb. 14 oz. $159 26°F Synthetic 62 in. / 57 in. 9.5 x 19 in.
Sierra Designs Cloud 800 1 lb. 15 oz. $320 26°F 800-fill down 60 in. / 58 in. 7.5 x 15 in.
Western Mountaineering Alpinlite 20 1 lb. 15 oz. $605 20°F 850-fill down 64 in. / 55 in. 8 x 15 in.
Sierra Designs Nitro 800 20 1 lb. 15 oz. $320 17°F 800-fill down 62 in. / 56 in. 15 x 7.5 in.
Sierra Designs Cloud 800 1 lb. 15 oz. $320 15°F 800-fill down 60 in. / 58 in. 15 x 7.5 in.
Nemo Disco 30 1 lb. 15 oz. $260 31°F 650-fill down 64 in. / 59 in. 7.5 x 11 in.
Marmot Ultra Elite 20 1 lb. 15.7 oz. $219 23°F Synthetic 60 in. / 56 in. 7 x 16 in.
Western Mountaineering Versalite 2 lbs. $625 10°F 850-fill down 62 in. / 53 in. 8 x 15 in.
Western Mountaineering Apache 2 lbs. $580 15°F 850-fill down 59 in. / 51 in. 8 x 15 in.
Big Agnes Anvil Horn 30 2 lbs. $270 30°F 650-fill down 69 in. / 60 in. 8 x 17.5 in.
Marmot Helium 2 lbs. 1 oz. $449 13.5°F 800-fill down 61 in. / 56 in. 7 x 14 in.
Mountain Hardwear Phantom 15 2 lbs. 1.2 oz. $550 11°F 850-fill down 58 in. / 52 in. 7 x 15 in.
Kelty Cosmic Ultra 800 2 lbs. 2 oz. $230 20°F 800-fill down 62 in. / 58 in. 8 x 13 in.
Sea to Summit Trek TkII 18  2 lbs. 2 oz. $299 18°F 650-fill down 60 in. / 57 in. Unavail.
Nemo Forte 35 2 lbs. 2 oz. $170 31°F Synthetic 64 in. / 59 in. 9 x 11.5 in.
Big Agnes Boot Jack 2 lbs. 2 oz. $210 25°F 600-fill down 60 in. / 54 in. 8 x 17.5 in.
The North Face Blue Kazoo 2 lbs. 2 oz. $300 15°F 700-fill down 63 in. / 59 in.  9 x 17 in.
Mountain Equipment Glacier 450 2 lbs. 2.6 oz. $429 18°F 700-fill down Unavail. 8 x 10 in.
Therm-a-Rest Questar 20 2 lbs. 3 oz. $360 20°F 650-fill down 63 in. / 61 in. 9 x 7.5 in.
Big Agnes Torchlight 30 2 lbs. 3 oz. $300 25°F 600-fill down 60 in. / 54 in. 8 x 17.5 in.
The North Face Cat's Meow 22 2 lbs. 4 oz. $189 20°F Synthetic Unavail. 9 x 16 in.
Big Agnes Sidewinder SL 20 2 lbs. 4 oz. $300 20°F 650-fill down 61 in. / 55 in. 8 x 17.5 in.
Therm-a-Rest Saros 32 2 lbs. 5 oz. $180 32°F Synthetic 63 in. / 61 in. 8.5 x 9.5 in.
Mountain Hardwear Bishop Pass 15 2 lbs. 5.4 oz. $275 15°F 650-fill down 62 in. / 53 in. 8 x 15.5 in.
Big Agnes Spike Lake 2 lbs. 6 oz. $240 13°F 600-fill down 60 in. / 54 in. 8 x 17.5 in.
Western Mountaineering Badger MF 2 lbs. 6 oz. $635 15°F 850-fill down 65 in. / 56 in. 8 x 17 in.
Marmot Trestles Elite Eco 20 2 lbs. 6 oz. $169 22°F Synthetic 62 in. / 57 in. 9.5 x 19 in.
Therm-a-Rest Parsec 0 2 lbs. 6 oz. $530 0°F 800-fill down 63 in. / 58 in. 9 x 8 in.
Nemo Riff 15 2 lbs. 6 oz. $400 16°F 800-fill down 62 in. / 54 in. 7.5 x 12 in.
Big Agnes Buell 30 2 lbs. 7 oz. $120 30°F Synthetic 60 in. / 54 in. 8 x 17.5 in.
REI Co-op Down Time 25 2 lbs. 7 oz. $229 25°F 600-fill down 62 in. / 58 in. Unavail.
The North Face Eco Trail 35 2 lbs. 7 oz. $169 31°F 600-fill down 63 in. / 59 in. 15 x 8.5 in.
Therm-a-Rest Oberon 2 lbs. 7 oz. $500 0°F 800-fill down 62 in. / 57 in. 10 x 17 in.
Western Mountaineering Antelope MF 2 lbs. 7 oz. $665 5°F 850-fill down 63 in. / 54 in. 8 x 17 in.
Rab Mythic 600 2 lbs. 7 oz. $585 10°F 900-fill down Unavail. 8.6 x 20 in.
REI Co-op Trailbreak 30 2 lbs. 8 oz. $100 29°F Synthetic 62 in. / 56 in. 7 x 12 in.
Marmot NanoWave 25 2 lbs. 8 oz. $109 29°F Synthetic 60 in. / 58 in. 10 x 15 in.
Big Agnes Anvil Horn 15 2 lbs. 8 oz. $280 15°F 650-fill down 69 in. / 60 in. 8 x 17.5 in.


Women's Mummy Sleeping Bags

Sleeping Bag Weight Price Temp Fill Shldr / Hip Stuff
REI Co-op Magma 30 1 lb. 6.5 oz. $349 29°F 850-fill down 60 in. / 57 in. 6 x 14 in.
Feathered Friends Egret UL 30 1 lb. 7.5 oz. $489 30°F 950-fill down 54 in. / 56 in. Unavail.
Sea to Summit Flame FmIII 25 1 lb. 8 oz. $489 25°F 850-fill down 59 in. / 56 in. Unavail.
Feathered Friends Egret UL 20 1 lb. 9.6 oz. $549 20°F 950-fill down 54 in. / 56 in. Unavail.
Rab Neutrino 400 1 lb. 10.9 oz. $400 30°F 800-fill down 54 in./ 43 in. 7.5 x 15.3 in.
Mountain Hardwear Bishop Pass 30 1 lb. 14.7 oz. $235 30°F 650-fill down 60 in. / 50 in. 7.5 x 14 in.
Marmot Ultra Elite 20 1 lb. 15.5 oz. $219 32.9°F Synthetic 60 in. / 56 in. Unavail.
Big Agnes Torchlight UL 30 2 lbs.  $370 30°F 850-fill down 58 in. / 56 in. 7.5 x 15 in.
Mountain Equipment Glacier 450 2 lbs. 1 oz. $459 30°F 700-fill down Unavail. 7 x 10 in.
Nemo Riff 30 2 lbs. 3 oz. $350 30°F 800-fill down 60 in. / 53 in. 7 x 10.5 in.
REI Co-op Magma 15 2 lbs. 4 oz. $399 17°F 850-fill down 60 in. / 57 in. 7.5 x 15 in.
Nemo Disco 30 2 lbs. 5 oz. $260 30°F 650-fill down 62 in. / 58 in. 11 x 8 in.
Big Agnes Torchlight UL 20 2 lbs. 5 oz. $420 20°F 850-fill down 58 in. / 56 in. 8 x 17.5 in.
Marmot Trestles Elite Eco 30 2 lbs. 5 oz. $159 29.7°F Synthetic 58 in. / 58 in. 9.5 x 19 in.
Mountain Hardwear Lamina 2 lbs. 5 oz. $180 30°F Synthetic 58 in. / 52 in. 7.5 x 15.5 in.
Big Agnes Daisy Mae 15 2 lbs. 6 oz. $280 15°F 650-fill down 66 in. / 60 in. 8 x 17.5 in.
Big Agnes Blue Lake 25 2 lbs. 8 oz. $120 25°F Synthetic Unavail. 8 x 17.5
Big Agnes Mirror Lake 20 2 lbs. 8 oz. $230 20°F 600-fill down 56 in. / 56 in. 8 x 17.5 in.
Mountain Equipment Glacier 700 2 lbs. 8 oz. $529 21°F 700-fill down 62 in. / 54 in. 12 x 9 in.

 

Hoodless Sleeping Bags and Quilts

Sleeping Bag or Quilt Weight Price Temp Fill Shldr/Foot Stuff
Zpacks 30F Solo Quilt 13.6 oz. $409 30°F 900-fill down 60 in. / 40 in. 5 x 12 in.
Zpacks 30F Classic Sleeping Bag 13.8 oz. $429 30°F 900-fill down 60 in. / 40 in. 5 x 12 in.
Therm-a-Rest Vesper 32 15 oz. $380 32°F 900-fill down 58 in. / 37 in. 5 x 6 in.
Loco Libre Ghost Pepper 15.7 oz. $354 20°F 900-fill down 52 in. / unavail. Unavail.
UGQ Bandit 1 lb. $310 30°F 950-fill down 50 in. / 40 in. Unavail.
Zpacks 30F Full Zip Sleeping Bag 1 lb. $459 30°F 900-fill down 60 in. / 40 in. 5 x 12 in.
Enlightened Equipment Enigma 1 lb. 0.3 oz. $360 30°F 950-fill down 54 in. / 40 in. Unavail.
Nunatak Arc UL 1 lb. 0.4 oz. $395 30°F 900-fill down 48 in. / 36 in. Unavail.
Western Mountaineering AstraLite 1 lb. 1.1 oz. $435 26°F 850-fill down 68 in. / 38 in. 6 x 10 in.
Hammock Gear Premium Burrow 1 lb. 1.4 oz. $260 30°F 850-fill down Unavail. Unavail.
Katabatic Gear Palisade 30 1 lb. 1.6 oz. $380 30°F 900-fill down 52 in. / 38 in. 5.5 x 10 in.
Enlightened Equipment Revelation 1 lb. 1.8 oz. $325 30°F 950-fill down 54 in. / 40 in. Unavail.
Therm-a-Rest Ohm 32 1 lb. 2 oz. $410 32°F 900-fill down 62 in. / 35 in. 6 x 7 in.
Feathered Friends Tanager 20 1 lb. 2.6 oz. $429 20°F 950-fill down 62 in. / 38 in. Unavail.
Zpacks 20F Solo Quilt 1 lb. 2.7 oz. $429 20°F 900-fill down 60 in. / 40 in. 6 x 12 in.
Zpacks 20F Classic Sleeping Bag 1 lb. 2.8 oz. $449 20°F 900-fill down 60 in. / 40 in. 6 x 12 in.
Therm-a-Rest Vesper Down Quilt 1 lb. 3 oz. $430 20°F 900-fill down 58 in. / 37 in. 5.5 x 8 in.
REI Co-op Magma Trail Quilt 30 1 lb. 3 oz. $329 30°F 850-fill down 56 in. / unavail. 4.8 x 13 in.
Therm-a-Rest Corus 1 lb. 4 oz. $270 32°F 650-fill down 53 in. / unavail. 7 x 10 in.
Hammock Gear Burrow 20 1 lb. 4.5 oz. $280 20°F 850-fill down 50 in/ unavail. Unavail.
Hammock Gear Economy Burrow 1 lb. 4.7 oz. $180 30°F 800-fill down 50 in. / 40 in. Unavail.
Zpacks 20F Full Zip Sleeping Bag 1 lb. 5 oz. $479 20°F 900-fill down 60 in. / 40 in. 6 x 12 in.
Sea to Summit Ember Quilt 1 lb. 5.2 oz. $369 35°F 850-fill down 47 in. / 59 in. 6 x 14 in.
Enlightened Equipment Convert 1 lb. 5.2 oz. $375 30°F 950-fill down 58 in. / 38 in. Unavail.
Jacks R Better Hudson River 1 lb. 5.5 oz. $240 20°F 800-fill down 48 in. / unavail. Unavail.
Feathered Friends Flicker UL 30 1 lb. 6 oz. $459 30°F 950-fill down 62 in. / 39 in. Unavail.
Therm-a-Rest Ohm 20 1 lb. 6 oz. $460 20°F 900-fill down 62 in. / 35 in. 8 x 6.5 in.
Katabatic Gear Flex 22°F 1 lb. 6.8 oz. $410 22°F 900-fill down 54 in. / 39 in. 12 x 7 in.
Jacks R Better Sierra Sniveller 1 lb. 8 oz. $280 20°F 800-fill down 52 in. / 42 in. Unavail.
Feathered Friends Flicker UL 20 1 lb. 9.2 oz. $489 20°F 950-fill down 62 in. / 39 in. Unavail.
Therm-a-Rest Corus 20 1 lb. 10 oz. $300 20°F 650-fill down 49.5 in. / 25 in. 7.5 x 11.5 in.


Temperature Ratings

As sleeping bag weight goes down, temperature rating goes up. It’s a simple formula: Warmer bags have more down fill and require more shell fabric to contain it. For the purposes of this list, we stuck to a 35-degree Fahrenheit temperature rating at the high end. Anything above that is very questionable for backcountry use and strictly for when the conditions are hot.

That said, don’t expect the warmth of your bag to perfectly match the listed rating. Many gear manufacturers now follow the European Norm (EN) or newer ISO system, although they're so similar that we can talk about them as one and the same. These standards provide two numbers: the Comfort (comfort rating for women) and Lower Limit (comfort rating for men), which is what is listed for the unisex bags above. But not all manufacturers use the same standards for testing temperature ratings, and some smaller companies don’t EN/ISO-rate their bags at all. This doesn’t mean you should discount non-EN/ISO numbers—high-end bags from Western Mountaineering and Feathered Friends often are warmer than a comparable bag’s EN or ISO rating.

Backpacking Sleeping Bag EN rating
The EN Comfort, Lower Limit, and Extreme ratings

All in all, we never suggest stretching the limits just to save a few ounces. We all sleep differently—some run warm and others cold—so we build in a buffer of about 10 degrees for the temperature rating of our bags. Overnight lows can dip unexpectedly and you don’t want to be stuck out in the cold. You can add a few degrees with a sleeping bag liner or by wearing a jacket, but opting for a warmer sleeping bag is the route we recommend. For more information on the topic, see our article: Sleeping Bag Temperature Ratings Explained.
 

Down vs. Synthetic Insulation

The down versus synthetic debate is one of our favorites and something we cover extensively in our insulated jacket and sleeping bag reviews. For backpacking sleeping bags, it’s clear-cut: Down insulation is the lightest insulator, which is why all of the lower-weight bags on the lists above are down-filled. Down bags are also more expensive, so if you don’t mind an extra pound or so of weight and a larger stuffed size (synthetics don’t pack down as small), a synthetic bag is a viable option. Synthetics do insulate better when wet—even more than the new hydrophobic down treatments. But when it comes to cutting weight, you want down fill.

In terms of down fill power, the table above spells it out pretty clearly. The top is full of bags with premium down (800-fill and up) because it insulates better at a given weight. Custom sleeping bags like the Enlightened Equipment Convert show the impacts in upgrading: You can choose the Convert 30F with either 800- to 950-fill down, and total weight drops from 1 pound 6.8 ounces to 1 pound 5.2 ounces (for a significant price increase).

Patagonia 850 Down Sleeping Bag (in tent)
Premium down bags provide great warmth for the weight

Making your way down the list, there are number of mid-range options with 600- to 700-fill down and even a couple synthetic bags mixed in. Weight does go up but price also drops substantially. There are a growing number of synthetics (including the 1-pound-14-ounce Marmot Trestles Elite Eco 30) that do an admirable job of keeping weight down at competitive temperature ratings and reduced costs. But when the question is all about weight, premium down still is best.


Sleeping Bag Shape

Sleeping bag shape matters, and a key way that manufacturers cut weight is by tapering things in (cutting corners, so to speak). Some sleeping bags are designed for people who want extra room or sleep on their sides, while others fit tightly and don’t allow for nearly as much movement. Ultralight bags in particular are known for having the most heavily tapered designs, although you often have choices in the cut.

There are real sacrifices in terms of comfort, so it’s important to think through your backpacking style and sleeping preferences. Are you a casual weekender or fastpacking minimalist who saws off the end of your toothbrush? Are you a back sleeper or a side sleeper? You can start by eyeing the shape of a bag, then check the shoulder and hip girth (listed in our table above when available). But in general, mummy bags are some of the least spacious designs, tapering pretty heavily from the shoulders to footbox, which helps keep weight to a minimum. For a step up in roominess, rectangular bags are the way to go but will add a considerable amount of heft.

Western Mountaineering UltraLite (drying out)
Mummy bags taper heavily from the shoulders to the feet

Stuffed Size

A sleeping bag takes up a significant amount of space in your pack—along with your tent and sleeping pad (yes, we've created handy charts on backpacking tent weight, one-person tent and shelter weight, and sleeping pad weight too), it’s among your largest pieces of gear. As you might expect, premium down packs the smallest, and warmer bags with more down generally have larger stuffed sizes. A big downside of synthetic insulation is that it doesn’t compress nearly as well as down.

Listed stuffed size can be a little confusing, but all it refers to is the dimensions of the included stuff sack. As a result, a smaller stuffed sack does not necessarily mean one bag is more compressible than one with larger measurements. We provide the numbers on this list as an indication of how much space the bag will take in your pack, but you can always buy a compression sack separately to reduce its volume.

Top Sleeping Bag Picks (stuff sacks)
Down bags stuff down much smaller than synthetics

Compressed volume will crop up as well in your search—REI is particularly keen to list this spec. What the compressed volume shows is the number of liters a sleeping bag fills under a standardized amount of force. The more compressible the insulation and fabric, the lower the volume. Not every bag has this spec, but it’s nice to know when available.
 

Hood vs. Hoodless

Just about every mainstream sleeping bag is a complete mummy, which means the insulation covers the top and back of the head when cinched up. But there are some niche and cottage-industry designs that go without a hood to cut weight. The appeal typically is limited to ultralight backpackers or those who don’t like the feeling of a mummy bag. The hoodless designs require less fabric and fill, which helps drop their weight (the 20-degree Zpacks Classic Sleeping Bag is a great example).

Lopping the top off the bag does not mean the aforementioned Zpacks bag will keep you warm at 20 degrees without some help. If your head is cold, you’ll be cold, no matter how much insulation is around your legs and chest. A jacket with a hood or beanie works as a replacement (Zpacks also makes a Goose Down Hood that’s pretty awesome). But you should take into account the added weight and cost of the beanie.

Feathered Friends Tanager 20 CFL (to neck)
Make sure to bring along a hat or hood if you plan to use a hoodless sleeping bag

Sleeping Quilts

There’s no lighter way to stay warm in the backcountry than with a down quilt. Trimming away the bottom material and insulation delivers 30-degree ratings for well under 1 pound. Fit and comfort are also strong suits because the open design emulates your blanket at home and is less constricting than a comparable mummy bag. The open sides can result in some heat loss if you’re not familiar with the system (and sometimes even if you are), so quilts remain a tiny percentage of the market. But for ultralight backpackers, hammock sleepers, or those wanting more wiggle room, a quilt is undeniably the lightweight champ. For a good look at the market, we list some of our favorite designs in our article on the best ultralight sleeping bags and quilts.
 

Fabric Thickness and Durability (Denier)

With ultralight tents, manufacturers cut weight by using thin fabrics that weigh less but are considerably less durable. You’ll see some of the same with sleeping bags, but because they are used on the inside on the tent, thin materials (with a lower denier) are less of a liability. Even the see-through 10-denier shell on the Sea to Summit Spark isn’t cause for too much concern as long as you keep it in a stuff sack and don’t sleep directly on the ground (and maybe keep the dog away from it as well). The biggest threat to tearing a sleeping bag is snagging it on its own zipper, but taking some extra care should allow just about any sleeping bag to have a long life.
Back to Unisex Mummy Sleeping Bags  Back to Hoodless Sleeping Bags and Quilts

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