The Best Duvet Inserts, According To Our Testing

The Best Duvet Inserts, According To Our Testing

While the terms are often used interchangeably, duvet inserts and comforters are two different things. The most important difference is that a comforter is typically used alone, while a duvet insert is meant to be used with a cover.

Susan Martinez, vice president of product development at Sferra, says, “A duvet is a bedding layer which is either filled with down or down alternative for those seeking a hypoallergenic option. A duvet is generally placed inside a duvet cover. It serves as an extra layer of comfort on the bed, keeping the user at the perfect temperature while sleeping.” She adds that “duvets are popular because they give people a plush layer of comfort while they sleep. Many can be used year-round or changed seasonally.” 

Knowing the difference between a duvet insert and a comforter is one thing, but finding the right one is another ball game. We tested 58 different duvet inserts, including down, down alternative, and more.

We previously recommended the Brooklinen Down Alternative Comforter as our best overall pick, but after six months the fill began to bunch together. Our current best overall pick, the Pottery Barn Hydrocool Moisture Wicking Down Alternative Duvet Insert, still has an evenly distributed filling after six months of use and regular washings.

Pottery Barn Hydrocool Moisture Wicking Down Alternative Duvet Insert

Pottery Barn

Filled with a blend of regenerated polyester and Hydrocool performance polyester, this duvet is a midweight insert and a good option for transitions between seasons and those who sleep relatively cool.

Desirable construction details include a 100% cotton-striped damask cover and sewn-through box quilting that distributes fibers evenly and prevents them from shifting. This insert also features corner loops that prevent the insert from shifting inside the duvet cover. Plus, it’s slightly oversized for added fullness and a more plush feel on your bed. The pockets were full, and the filling was consistent throughout the comforter, and it didn’t feel heavy when we lay under it. As we moved around under the comforter, we found the fabric to be smooth, not scratchy, and there was no noise or odors to report. 

This isn’t a thick duvet insert per se, so we found it to be quite breathable. And after five minutes, it warmed up comfortably without overheating. Whether shaking, tossing, or turning, the polyester fiber fill did not shift at all.

This comforter washed well. When all was said and done, it needed four cycles through the dryer but held up nicely—there were no tears, rips, pilling, or evidence of wear post-wash.

After two months of use, we can say this duvet insert sleeps comfortably temperature-wise. We even had a 50-pound dog who burrowed under the covers. (Anyone who sleeps with their pups can attest to the body heat they produce.) Even so, overheating wasn’t an issue. It works great in colder months, but we think it can work year-round. 

This comforter shines most in its visual appeal. It’s a down alternative that’s fluffy and plush—much like a real down comforter. Plus, it’s slightly oversized, which adds to its fullness, ultimately, and a more plush look on your bed.

This is a great product for someone who wants the look and feel of a plush down comforter without the price tag and extensive care considerations. Overall, we think it is a good investment for a midweight comforter that can be used in all seasons.

Shell: Cotton | Material Fill: Polyester l Care: Machine wash in cold water, gentle cycle | Sizes: Twin/twinXL, full/queen, king/California king

Southern Living / Dera Burreson

Bedsure All-Season Quilted Down Alternative Comforter


What’s Great About It

  • Lightweight

  • Fill doesn’t shift

  • Eight attachment loops

  • Launders well

For those outfitting their bed on a budget, Bedsure offers a down alternative at a reasonable price.

The duvet insert is relatively thin with a low loft. While it may not be fluffy, its box-stitch construction keeps the polyester fiber from shifting. As we handled,  manipulated, tossed, and turned the insert, the fill didn’t shift. 

The shell material felt light and cool on the skin. The fiber fill felt slick and barely there, and on the pinch test, we could feel fabric on fabric. Lying under the duvet, there was no noise. The fill is polyester, so there’s no smell to report. 

This duvet insert is pretty comfortable, and the materials are breathable, making it a good option for lightweight bedding. And while it’s quite thin, this duvet warmed up relatively fast. 

The insert filled the duvet cover to the corners, and for a duvet priced on the lower end, we were surprised to find this one has eight attachment point loops, considering some pricier options only have four. Laying under the insert with the cover, it remained breathable and lightweight. We were able to lift our feet with ease and adjust positions without restriction. 

Two months down the line, we found that this comforter made a lovely addition to our nightly routine. It’s plush and fluffy with no lumps. It’s substantial but not heavy, and it kept us warm without overheating. 

The eight corner ties stayed put, and the comforter didn’t shift at all inside the duvet cover. Moreover, the comforter washed quite well. We laundered it in a top-loading machine and tumbled it dry on a low setting. Ultimately, it exited the wash looking just as fluffy—no loose threads or clumps to report. 

We’ll add here that we tested this comforter in fall and early winter, and it performed excellently throughout the transition, so much so that we’re confident in recommending it for all-season use.

Overall, this duvet insert is on the flatter side of duvet insert options—if you’re looking for poofy, this isn’t it. You won’t find a lot of frills with this one, but it’s still quite cozy, so we think it’s a good value for the price. This duvet is machine washable, and while some may take a couple of rounds to dry, this one was completely dry in one cycle. Post-wash, it still felt soft, smooth, cool, and silky.

Shell: Microfiber | Material Fill: Polyester | Care: Machine wash, tumble dry | Sizes: Twin, twin xL, full, queen, king, oversized king, California king

Southern Living / Dera Burreson

Cozy Earth Bamboo Comforter

Cozy Earth

In a category by itself, this insert is filled with silk, so not only is it over-the-top luxe and ultra soft, but it’s naturally thermoregulating, breathable, and moisture wicking. 

As we would expect for the price tag, this duvet insert is soft, smooth, and incredibly well made. Unlike other inserts on our list, it isn’t made with pockets of fill from baffle boxes or a sewn-through construction. Instead, you’ll find one even and lofty layer of fill material—no doubt another detail contributing to its luxe appeal. When laying under this duvet insert while tossing and turning, we didn’t notice any noise, and in the absence of down or feathers, there were no odors either. 

This duvet insert is quite cool to the touch, but it warms up quickly. And while it felt cozy and warm after five minutes, it was still breathable, leaving little to no room for overheating. Overall, it’s a medium weight, but it has some heft to it and drapes nicely on the bed.  

With such a high price point, this duvet insert can only be called a splurge, but all things considered, you can absolutely tell why. The materials feel high end, and the insert didn’t fail to impress us throughout the testing process.

Two months later, this insert continued to be impressive. It was plush, warm, cozy, and luxurious—overheating was never an issue. Overall, it felt like we were sleeping in the lap of luxury. 

The one cause for pause may lie in the maintenance. This insert can only be spot cleaned when necessary or dry cleaned, the latter of which can add up over the lifetime of the insert. During our two months of at-home testing, we dry cleaned the insert twice, and while it was pricey, we still think it’s worth it. 

Shell: Silk | Material Fill: Silk | Care: Spot clean or dry clean | Sizes: Twin, Full/Queen, King

Rest Evercool Cooling Comforter


What’s Great About It

  • Cool to the touch

  • Moisture wicking

  • Buttery soft

  • Launders well

If you regularly sleep hot and think duvets are off-limits, guess again. This cooling insert by Rest Evercool features double-sided cooling fabric that instantly cools you down and stays cool to the touch throughout the night. Plus, it wicks moisture away from your body, making it an excellent choice for hot flashes, hot sleepers, and those prone to night sweats.

On inspection, this comforter looks pretty well made. The seams were uniform throughout, with no skipping. This insert is made with a sewn-through construction, so we didn’t feel any areas lacking fill on the pinch test. The filling is synthetic, so unlike feathers, there is no noise or odors to report. 

This comforter is cool to the touch and feels buttery soft—almost like suede or velvet. Like many of the entries on our list, this comforter is relatively flat, but it somehow still feels fluffy and pillowy. We suspect this may be a function of its sewn-through construction (meaning the shell’s top and bottom fabric layers are stitched together). Incidentally, the sewn-through construction also contributes to a nice contour on the body and, of course, no shifting to speak of. Post-wash, this comforter retained its lightweight and silky soft feel and dried in one go. 

Two months into testing, this comforter proved to be a fantastic option for year-round use. It kept us cool when we were warm but still delivered substantial warmth on chillier nights. We washed this blanket in cold water and found that it only required one dryer cycle. Moreover, there have been no noticeable changes in the color or quality. Ultimately, this comforter performed as it should and stands firm on our list of recommendations.

Shell: 90% nylon, 10% spandex | Material Fill: Synthetic | Care: Machine wash | Sizes: Twin/twin XL, full/queen, king/California king

Southern Living / Dera Burreson

Alwyn Home All Season Down Comforter


Anyone set on a real down duvet may consider this one from Alwyn Home. This down comforter is made with 600-fill power goose down. It has a baffle-box construction for minimal shifting and bunching, and the striped dobby fabric pattern with gold satin piped edges lets you skip the duvet cover if you like. 

We found this duvet to be a medium weight and pile. It appears well constructed, and the down feathers in the pockets were even throughout. While we could pinch a few spots where it was fabric to fabric while shaking and manipulating it, the fill remained relatively even while we laid under the comforter. 

This duvet insert didn’t make any noise when we lay under it or when we tossed and turned. We didn’t find any feathers poking out of the insert, and while this is made with real goose-down fill, we didn’t notice any odors coming from the insert. This duvet insert filled the cover appropriately and features loops sewn onto each corner to help it stay in place. 

The comforter has an average amount of fluff; it wasn’t super thick and fluffy, but it wasn’t thin. When lying under it, we also found it has an average weight. It didn’t feel constricting, and we could easily turn and adjust positions. In terms of warmth, this insert warmed up as expected for goose down; we felt sufficiently warm within five minutes.

With continued use and testing, we found this comforter to be pleasantly fluffy. While it’s substantial enough to hug your body with ample pressure, most people will find that it doesn’t weigh you down or make you feel uncomfortably hot. This comforter may not be the best pick for apartment dwellers, where the heat is notoriously high during the colder months. The comforter remained in a duvet cover for the duration, so we didn’t feel a need to have it dry cleaned for the time being. In terms of maintenance, this comforter is dry-clean only, which could foreseeably be a deal breaker for some.

Shell: Cotton | Material Fill: 600-fill power goose down | Care: Dry clean | Size: Twin, full, queen, king

Southern Living / Dera Burreson

Ettitude Bamboo Comforter


If bamboo is on your bedding bucket list, you might consider this duvet from Ettitude. Made from bamboo and filled with the same, this insert is soft, lightweight, and cooling. 

During the initial inspection, we found the construction to be pretty solid, with firm, straight seams. The pockets weren’t lofty, and the insert was relatively thin, but the comforter was still pretty cozy. The comforter barely made any noise while we tossed and turned, and we didn’t notice any odors.  

This comforter filled the cover appropriately, with minimal empty space left over. While we found it to be quite flat, it didn’t feel like it was lacking. Surprisingly, its lack of loft wasn’t even noticeable when lying underneath it. 

This comforter has a good weight to it. It’s not heavy to the point where it feels restricting, and we were able to move freely. The fabric itself was pretty soft against our skin. After tossing and turning under the insert, it didn’t feel like the fill shifted at all, and we had similar results on the shake test. The insert has a cooling effect, but it doesn’t sleep cold. Overall, we felt relatively warm, as the comforter nicely balances out your body temperature, so you’re not feeling either extreme. 

Like many of our entries, if you’re looking for poofy, lofty bedding, this isn’t it. As a result of its thin profile, this comforter is also lightweight, but that doesn’t mean it falls short in terms of warmth. While we liked the weight and found it to warm up quickly and retain heat nicely, it may be best suited as a transitional piece or a good option for hot sleepers or those who live in warmer climates. 

While this comforter is dry-clean only, we gave it a go in the washing machine (front loader, no agitator, gentle cycle), and it exited the wash looking just fine. We didn’t notice any clumping or shifting and its thin profile fit just fine in the washer and dryer with room to spare. 

Shell: Bamboo | Material Fill: Bamboo lyocell | Care: Dry clean only | Size Range: Twin,  full/queen, king/California king

Southern Living / Dera Burreson

IKEA Stjärnstarr Duvet


What Could Be Better

  • Slight odor

  • Slides off easily

Duvet comforters usually only have their moment during the colder months when temperatures take a nose dive. However, if you’re looking for a lightweight option that works for warmer weather, consider this one from Ikea. Made from wax-infused viscose, this comforter helps manage your body temperature by absorbing excess body heat and releasing it back when your body temperature drops later in your sleep cycle. 

This comforter features a sewn-through construction, and it’s extremely thin. So much so that it’s hard to discern (or believe) that it has any fill at all. This comforter made no noise when tossing and turning or when lying under it. We did notice a slight odor, but nothing like the odor typically associated with real down. It smelled more like synthetic fiber, which was almost expected, considering it’s a polyester fill. 

The shell of the comforter is somewhat soft, not overly stiff and starchy, and there’s no fluff to it at all. As a function of its thinness, this comforter felt more like a light blanket. It has no heft, so it slides off the body far too easily when tossing and turning. 

Another function of its thinness was that we felt cold when lying under this comforter. Not because the fabric was cooling but because it was so thin. This is clearly not a winter bedding item. It’ll probably be a good buy for those who like light coverage during the warmer months or as a coverlet folded at the foot of the bed. 

This duvet exited the wash in decent condition. It was relatively free of wrinkles, it dried in one go, and felt a little fuller or fluffier post-wash. 

After using this for two months, we think the most important thing to emphasize is that this comforter is incredibly thin. Much like our pick for the best bamboo duvet insert, anyone looking for plush and fluffy won’t find it here. And while it’s thin and light, and feels more like a blanket, it’s still quite warm. Ultimately, this will be a great pick for “combo” sleepers,” It’s also a good transitional piece for spring and summer and great for layering year-round. 

Shell: Lyocell, cotton | Material Fill: Polyester, viscose | Care: Machine wash, tumble dry | Sizes: Twin, full/queen, king

Southern Living / Dera Burreson

Riley Down Alternative Comforter


What’s Great About It

  • Transitions well between seasons

  • Sewn-through construction

  • Reinforced outer edges

  • Feels smooth and cool against the skin

Made with 100% hypoallergenic microfiber and finished with a cotton percale cover, Riley’s Down Alternative Comforter is a solid choice if you prefer an all-season option. This comforter is masterfully constructed; it’s sewn through, and the outer edges are reinforced with cording and double stitched. It features a low to medium fill level, and we didn’t find any bare spots. The comforter didn’t make much noise when we tossed and turned, and there were no feathers or down, so there were no odors, either. 

The outer cover of the comforter is quite smooth, and it felt cool next to our skin. The duvet was not overly fluffy; it was medium, about one and a half inches thick. It had no noticeable heft and laid smoothly over me. The fill remained intact while we tossed and turned in bed. 

Post-wash, the fabric felt smooth, crisp, and cool to the touch. It remained fluffy, but there was considerable wrinkling, which is to be expected with cotton fabric. The filling remained evenly distributed throughout the quilted squares and looked very uniform overall. No snags, tears, loose threads, or other flaws were visible, either. 

After two months of continued use, we can say this comforter isn’t the most plush option out there. However, it would work well for all types of sleepers and all seasons. 

Shell: Cotton | Material Fill: Cotton | Care: Machine wash, tumble dry low heat | Sizes: Twin/twin XL, full/queen, king/California king

Southern Living / Dera Burreson

Casaluna Premium Down Comforter


What’s Great About It

  • Heavyweight

  • Warm, cozy feel

  • Lofty

  • No odor

Those looking for a heavy-weight insert that can stand up to old man winter will find it with Casaluna’s entry into the category. Made with 600-fill power duck down for a cloud-like feel and brushed cotton for a soft finish, this comforter is available in three warmth levels. It features corner and side tabs that hold the duvet securely in place, and it’s Standard 100 by Oeko-Tex certified, so you can rest easy knowing it’s free from substances deemed dangerous to human health and the environment. 

Our initial inspection revealed a heavy-duty insert that looks to be well made. It features a sewn-through construction that gives it that highly sought-after poofy fluff commonly associated with down. It’s so fluffy that when we pressed a hand into it, it sunk in nicely and left a print before slowly poofing back up. 

We didn’t feel any bare spots in the pinch test (most likely because it’s a sewn-through construction), and while this one is made of real down, there were no odors to report. We didn’t find any feathers poking out, and the shell material was thick enough that we couldn’t detect the rachis, barbs, or quills of the feathers, which tends to happen with anything feather filled. 

While this comforter felt heavy to manipulate and a bit restrictive on the toss and turn, it was comfy to sleep under. It didn’t overheat, and we found it gives a gentle pressure that feels quite soothing, almost like a weighted blanket. It also seems oversized, falling past the mattress and frame around the sides and foot of the bed. 

This comforter has six points of attachment with loops built into the insert. After the shake test, we found one knot had come untied (we’ll add that we suspect the weight had something to do with it). Surprisingly, it wasn’t a challenge to get this one into the duvet cover, and it filled the duvet cover appropriately.

This duvet sleeps quite warm, but there is no danger of overheating. That said, hot sleepers may want to skip this one. Giving it more points in the “pro” column, this comforter is machine washable. But it smells strongly when wet and requires two drying cycles, so that may be a wash. 

Two months later, this comforter proved to be plush and cozy. While we’re calling it the best duvet insert for winter, it can also work year-round. We laundered this comforter once and didn’t notice any changes in the texture or quality.

Overall, Casaluna’s down comforter feels pretty luxurious. We gave it high points for fluffiness, quality, texture, and durability. It’s really soft on the skin and offers a cozy snoozing experience. This may be a great option for an upgrade or someone looking to try down for the first time. Even better, it’s beautifully designed, so it’s a hotel bedding vibe you’re after; you can skip the duvet cover without issue. All things considered, that’s an excellent value and maybe even the deal of the century. 

Shell: Cotton sateen | Material Fill: 600-fill power 75% white duck down, 25% white duck feather | Care: Machine wash, tumble dry | Sizes: Twin, full/queen, king

Southern Living / Dera Burreson

Garnet Hill Essential Down Comforter

Garnet Hill

What’s Great About It

  • Down filled

  • Over a dozen color options

  • Lightweight yet warm for year-round use

  • Smooth cotton percale shell

Garnet Hill’s down comforter offers a pretty robust color selection if you don’t like the look of hotel bedding with its stark whites. This comforter was well constructed and lightweight yet warm, making it a good pick for year-round use as well. 

When we examined the stitching, it seemed solid throughout. There was minimal clumping to note, and after a shake test, no feathers escaped. While this comforter is down-filled, we didn’t notice any odors. And while it did make some noise, it was relatively minor and likely not enough to disturb your sleep. 

The fabric is smooth and cool, and when we laid underneath it, it felt light and breathable. Overall, we were able to toss and turn with little resistance, and the fill stayed put. 

Unlike some down comforters on the market, this one is machine washable. However, it smelled horrible out of the washer, and it needed three drying cycles. Post-wash, this comforter was somewhat wrinkled, but not so much that it would be a deal breaker.  Ultimately it survived the laundry in good shape. We didn’t find any feathers poking out of the fabric. The seams remained intact, and the down did not clump. 

Two months into testing, we found this to be a good-quality comforter that can be used year-round. It’s neither super light nor heavy, and of course, it comes with a fantastic color assortment. With repeated at-home washes, the comforter held up quite well. It still didn’t clump, and it felt just as fluffy post-wash.

Shell: Cotton | Material Fill: Down | Care: Machine wash and dry | Sizes: Twin, Double/queen, king/California king

Southern Living / Dera Burreson

The Bottom Line

Pottery Barn’s Hydrocool Down Alternative is the best duvet insert overall. It’s filled with a blend of polyester fills, so it’s a midweight insert that’s great for seasonal transitions and hot sleepers. This isn’t a thick duvet insert, but it’s fluffy and plush, which lends nicely to a down-like look. This comforter is well made and holds up nicely through the wash. 

For those on a budget, Bedsure’s Down Alternative Comforter is a solid option. As a budget pick, it may not be plush or lofty, but it’s lightweight, breathable, and warms up quickly. This comforter is easy to care for; it washes well and only requires one cycle through the dryer. And when all is said and done, it exits the wash no worse for wear.

Our Testing Process

We’ve tested 58 comforters/duvet inserts in the lab to date, and many were also tested over longer periods of time in our homes. We inspected the duvet inserts and comforters, noting the type of construction, the quality of the seams, and looked for visible defects and fill distribution. 

We also handled and manipulated them to experience their texture, scent, and sound. We also performed a pinch test to see if we could consistently feel the fill between the top and bottom layers of fabric. Next, we placed the comforter or duvet insert on a queen-size bed and examined how much of the bed it covered and how well it draped over the edge.

To evaluate the warming properties of each entry, we got into the bed and laid under the comforter or duvet insert for five minutes. We noted how quickly it took to get warm, if and how quickly it took to overheat, or if it was cooling. We also considered the feel of the shell fabric, noting whether it was soft or scratchy, breathable or heavy. 

After that, we put each duvet insert in a duvet cover. We assessed how well it fit and considered the ease of manipulating interior ties and loops. If duvet inserts were machine washable, they were laundered and dried according to the care instructions. As they exited the wash, we took notes comparing the before and afters and logged the dry time. 

We continued to sleep under the top performing duvet inserts for up to six months, and this review has been updated with fresh insights based on our long-term testing.

Tips for Choosing the Right Duvet Insert


When shopping for a duvet insert, the fill material should top your list of considerations. Duvets were historically synonymous with down, but the bedding industry has changed considerably over the last hundred years, and down alternatives have become quite popular. 

“Fill power is directly related to the down’s cluster size,” says Martinez. “Large down clusters occupy more space than smaller down clusters, thus possessing a higher fill power rating. The higher the fill power, the better the down, and the greater its thermal insulating properties. The goal of higher fill power is to provide warmth without weight.” 

While down is known for its exceptional warmth and loftiness, it can be expensive and trigger allergies. For many people, that means a down alternative is a better bet. Typically filled with synthetic materials like polyester microfiber, rayon, cotton, or polyester, down alternatives are a good pinch hit. While down alternatives may spare your bank balance, shoppers should note that they don’t always deliver the loft that down and feathers do. 


The weight of a comforter or duvet insert is usually only used in relation to down fiber fills. Martinez adds, “The fill weight is the total number of ounces of down used. The higher the fill power, the lower the number of ounces required to achieve the same loft and insulating properties.”


“Nowadays, we want to simplify our lives and embrace low-maintenance products when it comes to what we surround ourselves with,” says Martinez. And duvet inserts are no exception. Bedding should be washed regularly, and if you choose one that’s “dry clean only,” that can get expensive over the life of the insert. 

The good news is that there are plenty of down comforters and down alternatives that are machine washable. When doing so, Martinez says to make sure “you do not use a washing machine with an agitator, and that you only wash with cold water on the gentle cycle.” She also notes that dryer balls are an excellent way to help un-clump the down clusters, and the ticking and fill are thoroughly dried before calling it a day.


Duvets typically come in two types of constructions: baffle box or sewn-through. A baffle-box construction means the shell is sewn in stitched squares or pockets, while a sewn-through construction means the shell’s top and bottom fabric layers are stitched together. In general, baffle-box duvets are preferred: “The walls form an interior chamber that helps to prevent shifting and allows for the maximal loft of the down. Greater loft creates more air pockets around the down, and these, in turn, increase its thermal properties,” says Martinez.

Corner Loops

Martinez says, “Sometimes, a duvet can shift or slip and may bunch up inside the duvet cover. The loops allow for the duvet to be tied to the ribbons or strips sewn into the corners of the duvet covers to prevent that from happening.” Once tied in place, you can easily fluff and refresh your duvet with a quick shake without the fear of excessive shifting or bunching.

Southern Living / Dera Burreson

More Duvet Inserts to Consider

Boll & Branch Down Alternative Duvet Insert: This duvet has a softer texture and a cool-to-the-touch feeling. While it has a baffle-box construction, the fill shifted a little more than we’d like. And while it’s generously oversized, that led to excessive bunching inside the duvet cover, which detracted from the look. This duvet insert sleeps warm, and while it doesn’t necessarily overheat, it may be best reserved for cold sleepers or colder months. 

Brooklinen Down Alternative Comforter: Our former best overall pick, this is a well crafted, soft, and lightweight comforter that’s warm enough for year-round use. Like many down alternatives, this one may not have a high loft, but it’s still fluffy. However, after six months it became more lumpy and bunched together, leaving lots of empty space where there should have been filling.

The Company Store Legends Hotel LoftAire Ultra Alberta Down Alternative Comforter: Overall, this comforter felt fluffy and lightweight. The fill didn’t shift much, and it was warm but not extremely so—ultimately, this may be a good pick for spring or summer use.  It may not be the softest comforter and maybe not the most groundbreaking, but it definitely gets the job done.

Southern Living / Dera Burreson

Questions and Answers

What type of duvet insert is the fluffiest? 

“Down duvets are often the fluffiest,” says Martinez. “Unlike feathers, down is the light, fluffy clusters found on the underside of a goose, duck, or any waterfowl. These clusters are soft, fine strands that stem from a central point but have no quill.” While down is revered for its incredible softness, Martinez adds, “Down clusters interlock and trap air, acting as an insulator to keep you warm. It also has the magnificent ability to ‘breathe,’ allowing air to flow around the down and through the fabric.” 

How much do duvet inserts cost?

“There is a wide range of costs when it comes to duvets,” says Martinez. “It all depends on what type of fill is used, the fill power and weight, the construction, and the overall quality of all the materials used.” 

While down is typically more expensive, Martinez notes, “Down-alternative products are an excellent cost-effective option. They are considered by many to be as good—or better—than most natural down as they possess many of the wonderful attributes of natural down, including lightweight, high-loft, and excellent warmth.” 

For a specific price range, our testing revealed you can find duvet inserts for as little as $33 to upwards of $300. 

Why Trust Southern Living

This article was written by Sharon Brandwein, Certified Sleep Science Coach and freelance commerce writer. Over the last six years, Sharon has written product reviews and roundups for a variety of online publishers. To compile this list of the best duvet inserts, we’ve tested 58 comforters and duvet inserts to date both in the lab and in our homes. We inspected, handled, smelled, and washed to find the best of the best. For expert insight, Sharon spoke to Susan Martinez, vice president of product development at Sferra.

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