Best duvet inserts: 8 comforters for year-round warmth

We've tried out the best duvet inserts for every type of sleeper and climate. These comforters made the cut

neutral small master bedroom
(Image credit: Julia Dempster)

The pièce de résistance of any bed is its bedding. For those who opt for an easily interchangeable duvet whether to maintain an easy cleaning routine or swap with the seasons, the accompanying insert is the unsung hero to achieving a rich, inviting look. 

The best duvet inserts has to meet a lot of criteria.  The best duvet inserts will typically feature a channeled or baffle box construction that keeps the filling in place and come assembled with loops or ties to make it easy to attach its decorative duvet cover. From here, consider the desired weight, fill type and power, and materials. Hot sleepers or those in tropical regions may prefer a lightweight design with a lower fill, than those who seek warmth or live in a colder climate and require heavier layers. It's not uncommon to purchase a duvet insert according to the season, either, and swap between two when the weather shifts from warm to cold. 

We've compiled together among the best places to buy bedding the very best duvet inserts available to suit a wide variety of needs, from those looking for premium down with an ethical backstory to breathable and lightweight down alternatives to suit those that find themselves kicking off a top layer at night. 

And while on the topic of bedding essentials, don't forget to upgrade any sagging pillows or stretched-out mattress protectors. Perhaps, finish off the ensemble with a fresh new set of bed sheets, too? 

Boll & Branch down insert

(Image credit: Boll & Branch)

1. Boll & Branch Down Duvet

Best duvet, overall

Specifications

Fill Type: RDS Down
Fill Power: 650
Material: cotton, down
Sizes: Full/Queen, King/Cal King
RRP: $408-$588

Reasons to buy

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Available in three densities according to needs
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Hypoallergenic
+
Eco-friendly
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Also available in down-alt

Reasons to avoid

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Pricey
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No twin size

"Like sleeping on a cloud." Cozy and comforting, while also airy and breathable.  The Boll & Branch Duvet Insert is indulgence in a comforter, but its ethical credentials are that extra push we seek that does good and feels good.  Filled with Down that meets the Responsible Down Standard and sourced from American farms, it's also washed with eco-friendly, Bluesign® certified detergent, making the down two times cleaner than the government standard.

The baffle box construction keeps the fill in place while corner ties securely attach to a duvet cover of your choice. It's Available in three densities, each with a 650 fill power, depending on your warmth preferences of lightweight, midweight and ultraweight. 

Beyond price, the only other drawback is that there is no twin size for single beds. 

Brooklinen down duvet

(Image credit: Brooklinen)

2. Brooklinen Down Comforter

Best duvet for all-seasons

Specifications

Fill Type: Down
Fill Power: 700
Material: cotton/ duck down
Sizes: Twin/Twin XL, Full/Queen, King/Cal King
RRP: $259-$479

Reasons to buy

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Ethically sourced duck down from Hutterite Farms in Canada
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Also available in light and heavy weights
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1 year trial period
+
Also offer a down-alt option

Reasons to avoid

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Doesn't give a super full look
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Spot clean or dry cleaning recommended

I've heard people go on and on about their Brooklinen comforter so I quite literally could not wait to get this on my bed. Despite the fact that I was in the middle of a heatwave, it felt like a good time to give the all-season design a try. The all-season design feels light and not oppressive, though I do find myself kicking my feet out for air. On the nights I leave the fan running, I'm in a perfect cocoon. The fill is evenly distributed and I don't find myself needing to shake it out every morning. I'm curious as to how it will get me through in the colder weather, but the mid-weight design should suit most. 

Brooklinen the All-Season is the Goldilocks model, but if you seek a lighter or heavier version you are not forgotten. The consistencies change slightly with the lightweight featuring a 650 fill of recycled down and the heavyweight has 750 fill of Goose down, compared to the 700 duck down design of the all-season. Note: Goose-down clusters and feathers are typically larger than duck, and thus tend to insulate better. 

All feature the same soft 100-thread count long-staple cotton in a sateen weave. All down comforters are sustainably sourced and DOWNMARK certified by the non-profit Down Association of Canada. 

I will note that the All-Season design does not give off the overtly full look of a heavier fill duvet, but it fills out nicely within my duvet cover. For care, it's recommended to spot clean or dry clean. 

Saatva all year down alt comforter

(Image credit: Saatva)

3. Saatva All-Year Down Alternative Comforter

Best down-alternative duvet

Specifications

Warmth:
Fill Type: Lyocell
Fill Power: N/A
Material: certified organic percale cotton
Sizes: Twin/Twin XL, Full/Queen, King/Cal King
RRP: $225-$295

Reasons to buy

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Blend of cloud-like 3D down alternative fiber and naturally moisture-wicking lyocell fill
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Machine Washable
+
Hypoallergenic

Reasons to avoid

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Only one weight available

If first impressions say it all, the Saatva All-Year Down Alternative Comforter let us know it was luxe right from the start. It arrived on our doorstep in a box tied with a blush pink ribbon. Inside the box, the duvet was wrapped in tissue paper and packaged in a reusable cotton storage bag (no plastic in sight!). 

Once we opened it, it was clear that our initial thoughts about the blanket were accurate. The duvet's cover material is made of thick organic cotton percale, and the fill is bouncy, and perfectly uniform throughout the blanket. 

Because the duvet is called the 'All-Year' we tested it in the middle of June, at a time when we're typically swapping duvets out for lighter-weight quilts. The fil, which is partly made of sustainable lyocell fiber, proved to be much more comfortable in summer temperatures than the down blanket we'd been using, but it may be too warm for hot nights if you don't have AC. But if you do? This blanket will keep you snuggled up and sweat-free.

We haven't tested it in winter yet, but according to Saatva, it's warm enough for mid-winter, too.

A few other details we appreciate: the cotton loops at the corners that secure it to a duvet cover and the fact that it's Fair Trade-certified.

One drawback: it had a noticeable smell straight from the box, but it disappeared with a wash (something we recommend before using bedding anyway).

Washing the duvet was simple enough - we washed it alone, because the queen size blanket took up almost the entire drum of our front-load washer, and transferred it to the tumble dryer immediately after. The duvet instructions say to tumble dry on a low setting, which took a while. After about an hour, we removed the blanket and fluffed it a bit, then put it back in for another 40 minute dry cycle. After that, there were still a few slightly damp spots, so we laid it flat to finish drying before putting it on the bed.  

Company Conscious™ Down Comforter

(Image credit: The Company Store)

4. The Company Store Company Conscious Down Comforter

Best eco-friendly duvet

Specifications

Warmth Level: Medium
Fill Type: 75% white duck down/25% white duck feathers
Fill Power: 500
Material: 400-thread count, 50% cotton & 50% TENCEL™ Lyocell
Sizes: Twin, Full, King/Cal King
RRP: $299-$429

Reasons to buy

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50% of the down fill is recycled
+
Sewn-through box construction keeps down fill in place
+
Machine washable
+
Also offer a down-alt option

Reasons to avoid

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May sleep too warm for some

While we strive to feature companies that only use responsible sourcing methods for their down, we love paying attention to extra sustainable details, like re-using recycled down, and you won't even notice the difference.  

The Company Conscious Collection from The Company Store has a makeup of 75% white duck down and 25% white duck feathers, but half of the down fill was recycled. The soft sateen cover, a combination of cotton and TENCEL, is insanely soft and breathable, despite the fact you'll likely place a duvet cover on top. The duvet stays securely in place when tied to the corner loops. The addition of TENCEL also assists with temperature regulating properties as well as being hypoallergenic and naturally dust mite resistant.

Once placed on the bed, the duvet is quite lofty and the baffle box construction manages to hold the fill in place to avoid clumping. The duvet does seem to settle after prolonged use, or sitting on it, but nothing a good shake can't do to make it look like new again. 

Slumber Cloud Lightweight Comforter

(Image credit: Slumber Cloud)

5. Slumber Cloud Lightweight Comforter

Best lightweight duvet for hot sleepers or warmer weather

Specifications

Fill Type: 50% Outlast® Polyester Fiberfill / 50% Polyester Fiberfill
Fill Power: N/A
Material: Cotton
Sizes: Twin XL, Queen, King
RRP: $159-$219

Reasons to buy

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Exclusive ClimaDry™ by Outlast fiberfill provides a down-like feel while regulating heat and moisture as you sleep
+
Great for hot sleepers
+
Machine Washable

Reasons to avoid

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No Full size
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Not for those looking for a very lofty look

If you're prone to sleeping hot, or looking for the perfect option when it comes to summer bedding, the Slumber Cloud Lightweight Comforter is simply the coolest option, quite literally. On their own scale of warmest (traditional bedding) to coolest, this lightweight, yet lofty comforter settles in nicely, beating out bamboo and eucalyptus bedding, down and even a quilt, with its breathable design.

The secret ingredient? Slumber Cloud's exclusive ClimaDry™ by Outlast fiberfill has that down-like feel but also regulates heat and moisture as you sleep. This technology, developed by NASA, is designed to regulate the temperature, humidity, and microclimate of your bed to keep your body cool and adjusted. It's designed to be proactive in a way that prevents your bedding from having to wick away moisture in the first place.  It all stays in place with a bafflebox square construction. 

Because this blanket is geared toward hot sleepers, it has a thinner loft, about a quarter-inch, so it's not for people who seek tons of loft. That doesn't mean it's not plush to the touch, which it totally is, but lightweight and airy when you slip underneath. 

Scooms Hungarian down duvet

(Image credit: Scooms)

6. Scooms Hungarian Goose Down Duvet

Best 3-in-1 duvet for those who want options

Specifications

Fill Type: 90% Hungarian goose down & 10% selected small Hungarian goose feathe
Fill Power: 700
Material: Cotton
Sizes: Single, Double, King, Double King
RRP: $232.50- $534.13

Reasons to buy

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Three comforters in one, a lightweight, mid-weight, and combined together
+
Holes for fasteners perfectly line up
+
Delightfully fluffy and heavy
+
Made with responsibly sourced Hungarian goose down

Reasons to avoid

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Can be confusing to choose a size
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No loops when two duvets are connected

I tend to gravitate toward versatile setups and the 3-in-1 construction of the Scooms All-Season Duvet, which combines two duvets of different warmths, is definitely a sensible choice. Designed in the UK, and filled with Hungarian Goose Down and Feathers, which are responsibly sourced from a single origin and a by-product of the food industry.

The duvets are identified by TOG, which is a rating that measures thermal resistance and the warmth level of duvets.  The higher the tog, the warmer the duvet will be.

I tried the mid-weight, 11.5 TOG, which combined a 9 TOG and a 2.5 TOG.  Together, they are heavenly warm; it's delightfully lofty, and my standard US Queen duvet cover has no problem fitting the UK King size insert. It's warm, and almost feels like a weighted blanket is on top, but once you separate them, you have a mid-weight that's perfect for autumn weather, and a thinner lightweight that's ideal for warmer nights. I tried this blanket when the weather had already taken a turn for the warm, so I couldn't roast under the full 11.5 TOG for too long, but I know I will appreciate it come winter.

The two duvets connect with snap fasteners. They're small, white, and easily get lost, so you'll want to be vigilant about any getting lost amongst the duvet, or falling onto the floor. The holes on both duvets line up perfectly, and the duvet itself is dense enough that you will not even notice the plastic fasteners as you lay in bed. 

Each duvet came packaged individually in a green cloth bag (easily spottable when storing, that's ideal to hold on to for when you're only using one. While I think the fills of the two look visually different, you can also check the tag to see which one is heavier to confirm you've picked the desired duvet.

Be sure to check the sizing guide when choosing your size, as the sizing is currently oriented toward UK beds, but there are plans to release US bed sizes too. 

Woolroom Organic Washable Wool Comforter

(Image credit: Woolroom)

7. Woolroom Organic Washable Wool Comforter

Best wool duvet

Specifications

Fill Type: 100% organic, washable and traceable British wool
Material: unbleached, organic cotton
Sizes: Twin, Queen, King
RRP: $232.50- $534.13

Reasons to buy

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Wool is traceable
+
No wool odor
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Available in light, medium, warm, and all-season with recommendations based on room temperatures

Reasons to avoid

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Recommended washing on wool cycle with wool detergent... LINE DRY ONLY
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Won't give you the fluffy full look of down

It doesn't get much more sustainable than wool, especially when it can be traced to the source. Woolroom is the first to offer a washable and organic wool product, paving the way for easier care. To make the wool washable, it goes through a treatment that combines natural minerals, water and oxygen to allow the wool fibers to flex when washing. As the wool fibers flex this removes any opportunity for the fibers to catch resulting in shrinkage or felting when the items are machine washed. 

The medium-weight duvet is made of 100% organic, washable, and traceable British wool encased in an unbleached 300 thread count organic cotton cover. It's not fluffy like down, but still breathable and insulating when you need it. Woolroom identifies the medium weight as being the most suitable for rooms that are between 60 - 70 degrees, but other weights are available too that can cater to temperatures as cool as 50 degrees, or opt for the all-season which combines two duvets together for maximum warmth and versatility. 

Beyond being fully organic, the wool duvet is naturally flame retardant, hypoallergenic, mold, mildew, and dust mite resistant. When we note that the wool is traceable, it means the product can be traced back to the exact farm the wool was sourced from, including collection, washing, and combing. 

While it is found to be machine washable, it still does have some particular care instructions, including to wash on a wool cycle with a wool detergent and then to line dry only. My washer does not appear to have a wool cycle, nor do I have wool detergent or a proper line to hang a heavy comforter on, so 

Luckily, wool doesn't need to be cleaned often, and a bout in the sun can cure any bacteria build-up. 

Nest silk duvet insert

(Image credit: Nest Bedding)

8. Nest Bedding Silk Cloud Comforter

Best silk duvet

Specifications

Fill Type: Silk
Fill Power: 200gsm/ 2.0 Kg
Material: 100% Mulberry Silk/ Cotton
Sizes: Full/Queen, King/Cal King
RRP: $419-$470

Reasons to buy

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Extremely soft 100% Mulberry Silk, 19 momme
+
Comes with a reusable tote
+
Temperature Regulating

Reasons to avoid

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Comes in plastic wrapping
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No twin size
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Not ideal for very cold weather
-
Spot clean or dry clean

When it comes to bedding, can you think of material more luxurious than silk? Beyond its beautiful feel, it's also remarkably breathable and hypoallergenic, making it a wonderful choice as a duvet insert too.

The Cloud Comforter uses a 200gsm/ 2.0 Kg fill of 100% Mulberry Silk, with an organic cotton sateen cover that is incredibly smooth to the touch. The silk design is airy and cool during warmer months, and sleeps lightly warm, but not in a way that overpowers during the winter.  It has the typical corner loops for a duvet cover of your own, but it's also suitable to be used on its own sans cover. 

For such a luxurious material, comes a little more responsibility for care, in the name of spot cleaning or dry cleaning. 

How we choose the best duvet covers?

The Homes and Gardens' review process is editorially independent and not influenced by any third parties. All our reviews are based on the real-life experience of using these products at home. Some were used for 2 months, others for almost a year. The products are given to us free of charge. Due to the personal nature of bedding, we have been able to keep our samples and invite friends and family members to try out the comforters too. We came to our decisions by considering factors like the quality of construction, warmth options, breathability, and ease of care.

For more insight into our hands-on review process, refer to our Homes & Gardens review guidelines