The 7 Best Ultralight Backpacking Quilts of 2026, Tested and Reviewed

The 7 Best Ultralight Backpacking Quilts of 2026, Tested and Reviewed

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  • Danielle Vilaplana

Say bye to the bag and stay warm without the weight on your next overnight backpacking adventure with these UL quilts

Published: 01-21-2026

Field Mag may receive a minor commission from purchases made via affiliate links.

Your sleeping bag is one of the bulkiest and heaviest items in your pack, but it doesn't have to be. The easiest way to shed pounds from your base weight isn't simply about buying premium down or splurging on cottage gear—it's ditching the sleeping bag entirely and switching to an ultralight backpacking quilt.

An ultralight quilt is essentially a sleeping bag with the redundancies cut out—that is, the back and the hood. The back of a sleeping bag doesn’t insulate much when compressed between your body and your sleeping pad anyway, so a traditional quilt designs can keep you just as warm (assuming you have a high R-Value sleeping pad). What about your bag's mummy hood? A lot of backpackers sleep with a hat or hooded jacket on, so you don't always need it.

The biggest potential flaw to backpacking quilts? Drafts. Most quilts use strap attachment systems to secure to your sleeping pad and prevent air from getting in, and these are also a great solution for anyone who rolls around during the night since they won't move with you. Poorly designed quilts though can sometimes let in drafts where the fabric and straps attach to the pads, giving quilts a reputation for letting in cold air, so it's important to know which ones are worth buying.

To help you figure that out, this guide breaks down everything you should think about when buying a backpacking quilt and includes a survey of our favorite models, which we've tested ourselves out on the trail.

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Field Mag's Top Picks for Best Ultralight Backpacking Quilts

The Best Backpacking Quilts of 2026

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Photo by Danielle Vilaplana for Field Mag

Best Overall: Katabatic Gear Allsek

Fill: 900 ExpedDRY Goose Down
Fill weight: 400 grams
Shell: 15D Pertex Quantum Ripstop
Total Weight: 629 grams
Temperature Rating: 22°F
Length: 6 feet
Price: $475

Pros: Very warm, truly draft-free attachment system
Cons: Narrow, expensive

The Katabatic Gear Alsek has a cult following among thru-hikers. When I reached out to my thru-hiking friends for quotes I consistently received the same answer: “I use a Katabatic.” Katabatic Gear is popular for their bombproof draft protection and for rating their quilts accurately—many users report staying comfortable below the stated temperature rating. It’s a little odd to emphasize how notable it is to have an accurate description, but when so many brands overestimate their comfort, that reputation means a lot.

The Alsek uses 900-fill ExpeDRY goose down with overfill in a 15D Pertex Quantum shell. It weighs 629 grams and uses a sewn footbox rather than a zippered one; those who want the flexibility of an open footbox and quilt that can be fully opened can look at Katabatic’s equally regarded Flex quilts. The footbox is intentionally overfilled with extra down to combat cold feet and extends higher up the leg than most designs for added security. The patented pad attachment system offers two options: dual two-millimeter cords that wrap around your pad with adjustable clips that lock tight in cold conditions, and three webbing straps (two removable, one fixed) that lie underneath you.

What sets this system apart is versatility—you can adjust the quilt's girth to minimize dead air space in cold weather or loosen it for freedom of movement on warmer nights. The differential cut is another key feature not seen in many other quilts; the inner fabric is smaller than the outer shell, maintaining loft as you move without creating cold spots. The plush draft collar at the neck cinches with a simple drawcord and includes a snap closure at the back for additional sealing.

I own and primarily use a Katabatic Sawatch, which is the warmer version of the Allsek, rated to 15 degrees. One of my female friends reported being a little cold in her Allsek for glacier and shoulder season trips so I think there’s a case to be made for buying the Sawatch if you’re a woman. I’ve used it extensively across varied conditions and the strap design genuinely solves the draft problem that plagues lesser quilts. The pad attachment system is the best I've found—I'm a side sleeper who rotates constantly throughout the night, and the adjustable clips let me cinch the quilt tight around my pad to completely eliminate cold drafts. There are admittedly times where I’m very tired and don’t want to mess with external straps, but I’ve found that leaving the clips on and sliding my inflated pad through the strap is a fast and easy way to set it up.

My friend Michael McDaniel, who has thru-hiked more than any other person I know, owns an Allsek and said, “I bought my Alsek for the CDT in 2018 and didn't have a single cold night on the trail. Since then, I've used it every season for thru hikes, trail work, and living out of my truck. It has kept me warm and comfortable and paid for itself many, many times over.”

The only complaints I’ve ever heard about Katabatic quilts is that they run narrow from the hips down. None of my friends have noticed that issue though and we have varied body shapes and sizes; nonetheless, those who need a wider width may be better off with a customizable Nunatek, mentioned below. The fabric is also slightly thicker than the super thin shells that a lot of other brands use, meaning it's harder to get air out and compress, so I've noticed that my Katabatic is slightly bulky (as far as backpacking quilts go).

After five-plus years of use, my Sawatch and all of my friends’ Allseks look and perform just about as well as new. The only people I wouldn’t recommend a Katabatic quilt to are those who absolutely need a wider bag and those on a lower budget—everyone else will love it. It’s perfect for cold sleepers, side sleepers, or anyone who's struggled with drafty quilts and wants genuinely reliable warmth.

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Photo by Danielle Vilaplana for Field Mag

Best Custom Backpacking Quilt: Nunatak Sastrugi 22

Fill: Expedry RDS Goose Down
Fill power: 900-fill
Fill weight: 428 grams
Shell: 10D Ripstop
Total Weight: 614 grams
Temperature Rating: 22°F
Length: Custom
Width: 59 inches
Price: $445 (Price varies per features)

Pros: No fussy hardware, customized
Cons: No zipper for getting in and out, long lead time

The Nunatak Sastrugi is possibly the highest quality quilt you can buy. Nunatak is the one brand that is considered as top-tier as Katabatic Gear, but it’s an entirely different operation. Nunatak is the definition of a cottage company—it's a tiny business based in Leadville, CO, and quilts are sewn to order so they have a longer lead time than the other ones on this list.

The Sastrugi is its own thing—not fully a quilt, sleeping bag, or hybrid. It doesn’t have an open back so it’s really just a down-filled tube without zippers or straps, creating what Nunatak calls a "simple bag." The Sastrugi I tested did have a small zipper added, but they come standard without any hardware. Theoretically the extra fabric would add weight, but the Sastrugi weighs less than the Allsek with similar fill power and weight.

There are a ton of customization options for the Sastrugi so exact specs will vary, but a middle of the road 22-degree, regular-width, medium length bag weighs 614 grams with 900-fill down. The Sastrigi uses continuous horizontal baffles that allow you to redistribute down as needed, so you can intentionally move down to create a warmer topside and cooler underside.

Like the Katabatic quilts, the Sastrugi uses a differential cut to maintain loft. The fully customizable sizing means you can dial in length, shoulder width, and footbox dimensions to find your perfect size. Nunatak's owner, Jan, is legendarily helpful in the customization process, but the number of specs are a little overwhelming so I don’t necessarily think this option is ideal for a first-time quilt buyer. Try out another quilt so you can figure out your preferences first.

The main appeal of the Sastrugi is its simplicity. There are no straps to fiddle with and you won’t have any drafts because the entire bag is enclosed (though a good quilt shouldn’t be drafty). Straps can be annoying when you’re tired and difficult to maneuver in a small, ultralight tent, so the ability to simply slide into your bag while still saving weight is great. Not everyone will enjoy shimmying into their sleeping bag, but I realistically do that in a traditional quilt too so I don’t have to mess with straps in the dark. Those whose primary focus is ease of use may prefer a quilt with a full zipper, like the Feathered Friends Flicker UL. The Sastrugi also lacks any sort of temperature regulation, so it’s best used in places that have consistently colder temps like the mountain West.

My friend and PCT hiker Keith Laurenz uses a Sastrugi, writing, “The Sastrugi fixed everything I disliked about quilts at an unnoticeable weight penalty. No more cold drafts and no more fussing with quilt straps.”

The Nunatak Sastrugi is one of the best quilts you can buy and the fuss-free design is a major perk. If you’re a first time quilt buyer who doesn’t need a wide bag, I would advise most people to go with a Katabatic Allsek for simplicity’s sake; for those who know what they want, have grown tired of traditional quilts, and have time to wait for a custom bag, the Nunatak Sastrugi is the easy answer.

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Photo by Danielle Vilaplana for Field Mag

Best for the Quilt-Curious: Zenbivy Ultralight Bed

Fill: Ultrasonic Muscovy
Fill Power: 900-fill
Fill Weight: 282 grams
Shell: 10D Pertex Quantum
Total Weight: 567grams (482g quilt + 85g sheet)
Temperature Rating: 25°F
Length: 72 inches
Width: 54 inches
Price: $468 ($339 quilt + $129 sheet)

Pros: No drafts, hybrid between sleeping bag and quilt
Cons: Heavier than other quilts

If you’re interested in trying a backless sleeping bag but not fully sold on the hoodless life, the Zenbivy Ultralight Bed is the best set up to test things out. It has a 10D Pertex shell and comes in a lot of fill options, including goose down, Ultrasonic Muscovy, and ExpedDry Muscovy. Zenbivy recently released these muscovy duck options, which are slightly more budget-friendly than goose down without lesser performance, so I tested the 900-fill Ultrasonic Muscovy.

The Ultralight Bed eliminates the straps and attachment hardware that can be a bit of a nuisance on traditional quilts by combining a quilt and sheet, which are sold separately. Instead of clipping directly to your pad, the quilt attaches to a fitted sheet that wraps around your sleeping pad. The sheet has draft shields along the sides that clip to the quilt using color-coded hooks. You have a few sheet options, including ones with uninsulated and insulated hoods that keep your pillow in place and provide draft protection around your head. I tested an insulated hood, which weighs 85 grams, and the 482 grams ultralight quilt, making the total set up 567 grams.

The quilt itself uses thermally-mapped baffles with smaller cells in a strategic horizontal and vertical pattern. It technically has a sewn footbox but Zenbivy's Fast Footbox design uses a single clip that lets you expand it for space or narrow it for warmth.

I’ve tested a few different Zenbivy items now and I’m consistently impressed with how well they’ve designed all of their products. The quilts are extremely intuitive to use, even for first timers, thanks to the very obvious color coded hooks that connect the quilt and sheet. The sheet stays put on the pad with two adjustable straps that buckle underneath, and the raised draft shields along the sides keep the quilt positioned correctly no matter how much you move during sleep. Because the quilt itself doesn’t have straps, it’s not the best to use without the sheet if you’re anticipating colder temps, but on hot nights it would work well solo and save some weight.

It’s not really a con, especially since a lot of brands are switching to muscovy in 2026, but duck down is more “clingy,” which means it can require more shaking to break up clumps. It also means that it is more stable within the baffle though and less likely to migrate. Muscovy is also known for having a strong smell, but I didn’t notice it with the Ultralight quilt. Those with more sensitive noses may prefer their ExpedDRY Muscovy or the goose down, which Zenbivy claims have less of a scent.

After testing the Zenbivy across varied conditions, I think it's perfect for active sleepers or those who are interested in quilts but aren’t quite ready for the real deal. Those who have struggled with traditional quilts will also appreciate the Zenbivy’s intuitive, flexible design.

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Photo by Danielle Vilaplana for Field Mag

Most Versatile: Feathered Friends Flicker UL

Fill: Goose Down
Fill power: 950+
Fill weight: 417 grams
Shell: Pertex Quantum Pro
Total Weight: 723 grams
Temperature Rating: 20°F
Length: 76 inches
Width: 62 inches
Price: $559

Pros: Extremely high quality, versatile across temperature ranges
Cons: Bulkier and heavier than other quilts

The Feathered Friends Flicker UL does, admittedly, push the definition of “ultralight,” but they have such a devoted following and such high-quality items that no list is complete without them. They updated their classic Flicker UL this fall with small improvements informed by their repairs. It has a 7D x 30D Pertex Quantum Pro shell with a DWR coating, which is quite thin, paired with a 10D Pertex Diamond Fuse liner. Feathered Friends added a little extra durability to the footbox with a 15D liner, after finding a lot of wear and tear happens there from toenails (wear socks for longevity, guys). It’s all filled with 417 grams of 950+ goose down.

The Flicker UL's full-length center zipper runs from neck to footbox, allowing you to zip it completely shut like a mummy bag in cold weather or open it flat as a blanket on warm nights. The footbox uses a drawcord cinch that tightens into an enclosed bag or loosens for ventilation, and a plush down-filled draft collar at the neck seals warmth with two snap buttons that close behind your head. As expected with all things Feathered Friends, the 950+ fill power goose down is among the highest quality available, and the Flicker UL uses continuous horizontal box baffles that reduce cold spots while allowing you to redistribute down as needed.

The Flicker UL became my go-to bag this past fall and it genuinely delivers on its promise of versatility across a massive temperature range. I've used it comfortably from the mid-teens up to the 60s, which is quite a feat for a single sleep system. Fully zippered and cinched, it’s perfect for cold nights; partially unzipped will give you more ventilation, and fully spread it’s like sleeping in your bed at home—it can even cover two people. The bag can also unzip from the bottom, letting you stick a leg out without making your top cold.

It’s hard to complain about loft, but the Flicker is admittedly heavier and tougher to pack than most ultralight quilts. I thought my Katabatic Sawatch was bulky, but the Flicker is borderline too big for some of my ultralight packs. That said, if you’re coming from a heavier traditional sleeping bag and aren’t set on having the most ultralight set up, I really don’t think you can go wrong with this quilt. Feathered Friends is kind of like the Hyperlite Mountain Gear of quilts (albeit higher quality, if you can compare packs to quilts)—technically not ultralight, but great for those who aren’t obsessed with grams and want a bag that will last a lifetime.

The hybrid design isn't a compromise—it genuinely excels at both functions, making it one of the most versatile ultralight sleep systems available even at premium pricing. I personally will probably go back to a full zipper quilt or zipperless design when (if) my Katabatic finally dies, and the Flicker UL is a strong contender.

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Photo by Danielle Vilaplana for Field Mag

Best for Summer: Big Agnes Fly Creek UL Quilt

Fill: DownTek Down
Fill power: 850-fill
Fill weight: 227 grams
Shell: 10D Recycled NetPlus Nylon
Total Weight: 434 grams
Temperature Rating: 59°F (comfort)
Length: 67 inches
Width: 60 inches
Price: $350

Pros: Very light and packable
Cons: Niche use, zipper isn't two-way

If you live in a lower elevation region and primarily recreate in the warmer months, even a 40-degree bag will be overkill. I hiked half of the Appalachian Trail with a fleece blanket I bought on Amazon because it was too hot for a sleeping bag, and for those kind of balmy nights where your body is sticking to your sleeping pad, the Big Agnes Fly Creek UL Quilt is a great option to keep you cozy but not hot.

The Fly Creek UL Zip Quilt is a very niche bag. It has a comfort rating of 59 degrees and uses 227 grams of 850-fill down. It has a 10D NetPlus recycled nylon shell and a long zipper that opens completely for versatility. The quilt uses diamond quilted stitching to keep the down in place and a drawstring and draft collar at the top to seal out colder air. The FlipIt Footbox is the only one I’ve seen of its kind—it’s kind of like a shower cap you pull from the inside and wrap around the bottom of the bag. I almost like it more than traditional drawstrings that often let in cold air but the extra fabric does come with a weight penalty.

The most notable feature about the Fly Creek quilt is that it’s objectively lightweight and tiny. Big Agnes compares it to a Nalgene (a strange standard in the ultralight industry since no one I know actually uses Nalgenes, but there it is). It’s small! Which I really like on trips where you barely need a sleeping bag so carrying a heavy, bulky bag feels like an unnecessary burden.

I included the Fly Creek quilt in this guide because it’s a very niche thing that few other brands are making, but there are a few things I don’t love about it. I find 60 degrees limiting if you ever want to camp out west—you’re really limiting your range to very warm regions. You could just as easily get a 40-degree bag that fully zips for $100 less. Big Agnes also claims that its stitching creates loft, but this bag is pretty dang flat. However, from a space-saving standpoint, all of these things mean that it will pack down super tiny. It’s also worth noting that Big Agnes advertises its two-way zipper but the zipper actually is not two-way. So despite the super packability and weight savings, I still think it’s pretty expensive for what it is and you need to have a pretty specific use for it.

If you’re the kind of person who has a quiver of bags and want something that packs up tiny, or only need a bag to function in very warm climates, the Big Agnes Fly Creek UL Zip Quilt will serve you well. For everyone else, I’d look into cheaper and more versatile alternatives from Hammock Gear or even Enlightened Equipment, since warmth isn’t really the focus in this use case.

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Photo by Danielle Vilaplana for Field Mag

Best 30-Degree Quilt: Nemo Pulse Quilt

Fill: RDS-Certified Goose Down
Fill power: 1000-fill
Fill weight: 330 grams
Shell: 10D Recycled Polyester Ripstop
Total Weight: 500 grams
Temperature Rating: 34°F (comfort)
Length: 72 inches
Width: 57 inches
Price: $550

Pros: Sustainably and ethically made, no need to redistribute down
Cons: Expensive

The Pulse Quilt is the priciest quilt on this list but it’s also the lightest. It weighs just 500 grams and is insulated with premium 1,000-fill ExpeDRY, RDS down that uses gold particles to aid evaporation and wick moisture away from down, helping it dry faster when damp. It is quite literally the gold standard for water-resistance and warmth-to-weight ratio. This quilt has an ISO tested 34°F comfort rating and 23°F lower limit, which makes it a 34-degree quilt in my book, and explains the slightly lower weight compared to the 20 degree bags in here.

The Pulse is made entirely out of recycled and ethical materials, including the recycled 10D shell and RDS-certified down. It’s also part of Nemo’s Endless Promise recycling program, making it both recycled and recyclable, which is as sustainable as purchasing a new piece of gear can be.

The Pulse is one of the only quilts I’ve seen with the Karo Step baffle construction. It has a grid-like pattern of square baffles that uses roughly 45% less fabric than traditional box baffles while keeping down evenly distributed. (Note that Karo is a distinct thing from sewn-through and box baffles and instead uses semi-open chambers.) The down won’t migrate as much as it does in vertical and horizontal baffles, but you also can’t customize it as well either. The fully enclosed footbox is shorter than most quilts at just 12 inches from the foot end, which keeps it from feeling restrictive on warmer nights and allows for easy foot venting by sticking a leg out the side. For the ultralight hikers who still have a torso-length inflatable Therm-a-Rest pads, however, this quilt will not pair well because of the extra open space beneath you.

The Pulse is generously sized, so much so that my 6’2” partner fits in the 6’0” quilt. Nemo recommends sizing down if you’re near the edge of sizes to avoid extra space and cold spots and that recommendation seems to hold true. The draft collar at the neck is also nicely sized and cinches with a single-handed drawstring adjustment. It all seals well with a flat snap at the back that closes behind your neck to seal in warmth.

The pad attachment system uses adjustable straps to attach your quilt to the pad and prevent drafts. The placement of the hardware on the straps isn’t my favorite since I’ve popped super-thin pads like the Nemo Tensor Elite on smooth items like that before, but that may just be paranoia. It also attaches to the edge of the quilt, which is generally inferior to positioning the edges a little further on the outside like on the Katabatic Allsek and Neve Waratah.

I've always used cottage brand quilts so I wasn’t expecting to like the Pulse as much as I did. The Karo Step baffles work well at preventing cold spots, though I noticed a little migration over time that required shaking to redistribute. The 1,000-fill down lofts incredibly fast after unpacking and maintains even warmth throughout the night. It also has an overall nice handfeel, likely due to the polyester shell versus the nylon that most brands use. Polyester is generally a little less durable than nylon though, so be careful with this one.

The Nemo Pulse is an expensive quilt but it has a few standout qualities. Though purchasing new gear will never be sustainable, the ethical down, recycled content, and recyclable afterlife are appealing traits. At the same time, it doesn’t skimp on the highest quality features and weight savings. After testing, I think the Nemo Pulse is a solid option for those who value sustainability and want a quilt for slightly warmer conditions.

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Photo by Danielle Vilaplana for Field Mag

Best Value: Neve Gear Waratah

Fill: Duck
Fill power: 850-fill
Fill weight: 430 grams
Shell: 10D Nylon Taffeta
Total Weight: 645 grams
Temperature Rating: 28°F (-2 C)
Length: 75 inches
Width: 59 inches
Price: $260

Pros: Screaming deal for some premium features
Cons: N/A

Neve Gear is a newer brand to the United States and their Waratah ultralight quilt delivers incredible value at only $260. The Australian-designed quilt uses 850-fill RDS duck down (note: not muscovy) and weighs 645 grams, which is slightly heavier but pretty on par with other quilts on this list. It has a versatile design that can be fully opened and a thin 10D taffeta nylon shell.

The Waratah uses a combination of vertical and horizontal box baffles to optimize down distribution. Sewn-through baffling can create cold spots at the seams, so the box baffles ensure a layer of continuous insulation. It also has a comfortable draft collar, which is a feature you often have to pay extra for at other brands. The overall effect is quite warm—I’m often cold well above the comfort ratings, and felt fine in the mid-30s in the Waratah. Other reviewers have noted feeling warm even below 28°F, though, so it has a reputation for providing a ton of warmth for the price.

The Waratah has an open, cinchable foot box with a zipper at the bottom and snap closures at the top. Those with cold feet may find the open footbox a bit chilly even when cinched, but it also makes room for those with larger feet or those who need room to stretch their legs. It’s also highly versatile if you want to expand it for two people when car camping and easier to dry if it gets wet, since you can expose every part to the sun.

Price aside, the major selling point is Neve's Draft-Guard attachment system, which is similar to Katabatic’s and positions the pad straps farther from the quilt's edge on external baffles rather than directly along the edges as in traditional quilts. This pulls extra fabric underneath your sides when clipped, creating a seal that blocks drafts without requiring complicated edge tension systems or sheets. I only use 20-inch sleeping pads, but it expands enough to work with wider pads, too.

The Draft-Guard likely won’t fully stop drafts for those who move significantly throughout the night, but as a pretty shifty sleeper, I didn't notice any cold spots. The fact that I’m a relatively slim woman likely helps, however, since the quilt’s width felt generous and not restricting to me. Those who move substantially should probably consider sticking with a mummy bag or looking into fully zippered or zipperless designs.

Another thing I really appreciated about the Waratah is that the price you see is the price you pay. Other popular quilts are known for being a great value, like the Hammock Gear Burrow, but the price changes dramatically once you put together all of your desired specs. By the time you’re done, you could just buy a higher quality Katabatic Gear quilt for marginally more, unless custom color options are very important to you.

The Waratah isn’t the loftiest quilt (duck down is smaller and therefore lower quality than goose) and it could be lighter if they used a higher fill power, but its current specs are what allow it to be such a screaming deal. Overall, the Neve Gear Waratah is an impressive quilt with a lot of features previously found only on the most expensive quilts. The unique baffling design is effective and the attachment system is one of the best in the business, easily surpassing more premium brands. And lest you be afraid of purchasing from a foreign brand due to tariffs, Neve Gear has a distribution center in Texas. I would recommend the Waratah to almost anyone, especially those interested in dipping their toes into ultralight quilts at an extremely affordable price.

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How to Choose a Quilt for Backpacking

Historically, cottage companies have dominated the quilt game, but as their popularity has grown, larger brands have caught on. There are a ton of great, small brands to choose from but a few larger brands like Nemo and Big Agnes who are known for their quality camping gear are worth considering too. Larger brands will often offer better sales or deals than the smaller brands can, and if you’re just getting into quilts, it’s not a bad idea to test a more affordable one to see if the weight savings are worth the trade offs.

Choosing the right quilt requires understanding more than just weight and price. It’s crucial to pair your quilt with a warm sleeping pad, and it helps to understand the different fill powers and weights, which I’ll get into below.

Down vs Synthetic

Down sleeping bags offer superior warmth-to-weight ratios, compressibility, and longevity compared to synthetic options. A quality down bag packs down significantly smaller than synthetic bags and can last decades with proper care. The same properties apply to quilts.

That said, down loses its insulating properties when wet, takes longer to dry, costs considerably more, and requires careful maintenance to preserve loft. It can be an unethical and harmful choice for the birds as well, though there are certified suppliers like Responsible Down Standard that ensure fair treatment of the animals. Allied Feather and Down, the company that set the standard for ethical down, states that down is almost always the byproduct of the food industry, so the ethics are more about the treatment of the birds, not the number of birds being bred.

Recently, Muscovy duck down fill has emerged as an alternative to traditional goose down. Muscovy is a great alternative that's often slightly cheaper and slightly more durable over time than down. The feathers are clingier than goose down, which makes them more stable within baffles, but also more prone to clumping over time, requiring a manual shake to disperse them. The only notable defect is the smell, which may or may not be noticeable, it depends on the specific product.

Synthetic bags excel in consistently wet conditions since they retain warmth when damp, cost less, and require minimal care. They're also significantly heavier, pack down to larger sizes, and lose loft over time as the fibers break down.

Down is the best choice if you're prioritizing weight savings for long-distance hiking, camping in dry or cold climates, and can afford the investment and careful handling it requires. Synthetic bags are a good option if you regularly camp in wet environments like the Pacific Northwest, want a lower-cost entry into backpacking, or need a more forgiving option that may not last as long but tolerates rougher handling.

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Photo by Danielle Vilaplana for Field Mag

Backpacking Quilt Temperature Ratings

The temperature rating is the second most important factor when choosing a quilt, though individual comfort will vary. I am often cold in 20+ degree bags so I use a 15-degree quilt all year. This comfort rating discrepancy tends to be true for women, who often run colder.

Summer weight is considered 40 degrees and higher; 20 to 30 degrees is a more versatile, all-season range that also works well for summers in the mountains. Ratings below 15 degrees will be best for shoulder season and winter. All of this varies by where you live or where you're going, though—it can easily get into the 30s at a high alpine camp in Colorado in the summer.

Larger companies can afford ISO testing and standardization, but there isn’t a lot of consistency in ratings across smaller brands in the United States. Some brands are known in the hiking community for certain approaches to their ratings. For instance, Zpacks and Enlightened Equipment tend to rate optimistically (their 20°F might feel like 30°F), while Western Mountaineering, Nunatak, and Feathered Friends rate conservatively. I was always cold in my Enlightened Equipment Enigma 20 when I hiked the Continental Divide Trail and so was my friend who used it the next year on the Appalachian Trail. By contrast, I’ve never had a bad experience with Western Mountaineering or Feathered Friends.

Many cottage brands don’t distinguish between comfort and limit temperatures, so I always recommend searching reviews (Reddit's r/ultralight channel is a great resource) and choose conservatively when in doubt.

Fill Power and Fill Weight

Down fill power (FP) measures the quality and loft of down insulation—specifically, how many cubic inches one ounce of down occupies when fully expanded. Higher fill power numbers (800FP, 900FP, 950FP) indicate fluffier, larger down that traps more warm air and thus provides more warmth per ounce and thus requires less fill and compresses well. No quality quilt nowadays is below 800-fill power—even below 850 is a little unusual to see.

Fill power alone doesn't determine warmth, it works in tandem with fill weight (FW), which is the actual amount of down insulation in ounces used in a sleeping bag or quilt. A quilt with 400 grams of 800-fill power down will be warmer, lighter, and more compressible than one with 400 grams of 600-fill power down, because the higher quality down is loftier and holds more air. As another example, a quilt with 800 grams of lower-quality 600-fill down could be just as warm as a quilt with 400 grams of high-quality 800-fill down, but it will be much heavier and bulkier.

These numbers mean nothing if the design has poor baffle construction or allows cold spots, so quality construction matters as much as premium down, which I’ll get into below.

Many experienced hikers recommend adding overfill—an extra amount of down added beyond the standard fill —when it’s an option. Adding overfill can prolong the life of the down, help maintain loft during moist conditions, boost the temperature rating by a small amount and keep the down volume from shifting. Some brands, like Katabatic Gear, automatically provide overfill and it can be requested at many other companies.

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A sleeping bag footbox (top) versus a quilt's open footbox (bottom)

Open vs Sewn Footbox

A sewn footbox creates a permanent enclosed pocket for your feet similar to a sleeping bag's, which eliminates drafts and maintains consistent warmth without requiring adjustment throughout the night. It's ideal for cold sleepers, winter camping, or anyone who moves around significantly while sleeping since the enclosure stays secure regardless of body position.

A cinched footbox uses a drawcord to close around your feet, offering versatility to open it on warmer nights for ventilation or to stick a leg out for temperature regulation. These designs require proper adjustment to prevent drafts and can loosen as you move during the night.

Sewn footboxes are generally warmer and more foolproof but sacrifice versatility, while cinched footboxes offer adaptability across wider temperature ranges at the cost of a slightly higher risk of drafts if not cinched correctly. My feet are always cold so I prefer sewn footboxes, but those with larger feet or who need room to splay will appreciate the extra space and versatility of an open footbox.

Other Backpacking Quilt Design Features

Quality construction matters as much as quality down. A differential cut (where the inner fabric is smaller than outer fabric—picture something like a small arch with a bigger arch above it) maintains loft and prevents cold spots as you move. Most brands don’t offer this, but it’s one thing that sets the top quilts in this guide apart from others. You should also look for draft collars at the neck and pad attachment systems to prevent drafts.

Baffles aren't all made equal, either. When it comes to how a bag is sewn, box baffles (inner and outer shells are separated by vertical fabric walls inside the baffles) are preferable to sewn-in baffles (inner and outer shells are stitched together to create and separate baffles) because they create a continuous layer of insulation that minimizes cold spots at seams.

Baffle layout matters too. You might come across "continuous baffles," which refers to a layout where baffles (usually box) run all the way around the quilt or sleeping bag. This lets you redistribute down as needed but the material may shift unintentionally during sleep. Most brands use horizontal baffles across their quilts but vertical baffles tend to be a bit better at preventing cold spots. A few brands, like Zenbivy and Neve Gear, use hybrid vertical and horizontal baffles.

You’ll want to note the shell fabric thickness as well, known as the denier. This can range from 10D at the lightest to 30D on heavier bags. Fabrics with a higher denier are more durable, but also heavier. Cottage brands focused on saving the maximum weight will use very thin fabrics, sometimes so low you can see the feathers inside.

Use our ultimate backpacking checklist to help keep track of all your gear for your next big outing.