A down comforter (or silk, or down alternative) goes inside the duvet cover, creating the floofy duvet. If you want an oversized fit for your bed, you could order a king size comforter and a king size duvet cover (I seem to remember that there used to be companies who manufactured and sold oversized queen comforters but I don't know how common/easy to find those are nowadays). If you order a queen sized comforter and put it inside a king sized duvet cover, you're going to have a lot of empty space on the sides and around the actual comforter. The duvet cover has to fit your comforter properly. If you want something that's "middle of the road" for warmth, you want to look for an all season or year round weight, not anything marked extra warmth or specific for winter. Look for something in the 40oz./700-750 fill power range for a queen comforter. Answer from helenasbff on reddit.com
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Reddit
reddit.com › r/bedding › explain down comforters and duvets like i’m 5?
r/Bedding on Reddit: Explain down comforters and duvets like I’m 5?
January 23, 2024 -

Hi all, long time lurker, reading through the amazing posts by such knowledgeable people. I am looking for a new queen down comforter. Mine is almost 20 years old and flat as a pancake. Something mid- warm. I’d like it to hang over the sides of my queen size bed. Should I get a queen size down insert and a king duvet? What is a mid warmth down fill number you’d recommend? I’m so overwhelmed by all the choices!

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Vero Linens
verolinens.com › home › bed sheets, duvet covers & shams › duvets & shams buying guide › the difference between a duvet cover and down comforter
The difference between a Down Comforter & Duvet Cover...
Duvet covers are different than down comforters or duvet. Click here to learn the differences, the benefits of using them & what to look for in each of them...
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Down To Basics
downtobasics.com › blogs › news › the-distinction-between-a-down-comforter-duvet-quilt-and-blanket
The Distinction Between a Down Comforter, Duvet, Quilt, and Blanket – Down To Basics
April 24, 2024 - They are made in a three-dimensional shape and in a grid where each grid has fluff fillers from ducks and geese. The fluff adds a cozy feeling to the comforters and thermal insulation. Warm goose down comforters come in handy for colder nights. And unlike the duvet, comforters don’t need pairing, are bigger than duvets, and hang over the sides of the bed.
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The Spruce
thespruce.com › duvet-vs-comforter-7113622
Duvet vs. Comforter: What's the Difference and Which to Get
February 27, 2023 - If you want more coverage on the sides of your bed, choose a comforter or duvet one size larger than your bed size for more overhang. For example, you may want to buy a queen-sized duvet or comforter for your full-sized bed.
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Puffy
puffy.com › blog › lux comfort › down comforter vs duvet: a comprehensive comparison
Down Comforter vs Duvet: A Comprehensive Comparison
October 30, 2024 - Similar to how the Puffy Lux Mattress adapts to different sleeping styles with its hybrid design, a duvet system offers adaptability through interchangeable covers to suit varying preferences. When deciding between these options, consider these important factors: ... Just as the Puffy Cloud Mattress offers cloudlike comfort with its specialized layers, a quality down comforter provides consistent warmth and comfort through its carefully constructed design.
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Down and Feather Co.
downandfeathercompany.com › home › a guide to duvet covers vs. down comforters
"How to Choose a Down Comforter | Down & Feather Co."
October 31, 2016 - They are very important to the longevity of your down comforter and how comfortably you will sleep at night. While a duvet isn’t always a down comforter, a down comforter is always a duvet. Down comforters are filled with down feathers, offering the height of luxury to those who enjoy them.
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Sleep Number
sleepnumber.com › home › resources
Comforter vs Duvet Guide : What’s The Difference? | Sleep Number
Looking for the difference between comforters vs. duvets? Check out Sleep Number's professional guide on what to consider before purchasing bedding.
Find elsewhere
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Casper Sleep
casper.com › home › dreamer's digest › dreamer's digest
Duvet vs. Comforter: What’s the Difference? | Casper Blog
November 24, 2020 - Our soft and breathable fiber fill feels like down, but it’s actually recycled polyester. Very cool. ... The coolest sheet you’ll ever meet. Not just light sheets. Hyperlite™ Sheets. Made with 100% TENCEL™ Lyocell and a one-of-a-kind grid weave for maximum breathability all night long. ... A duvet is a two-piece setup — a lofty insert that slips into a removable cover — so it’s warmer, machine-washable, and easy to restyle. A comforter is a single quilted blanket you use as-is, giving grab-and-go simplicity but making laundry day bulkier.
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Quora
quora.com › What-is-the-difference-between-a-duvet-and-a-down-alternative-comforter-Which-one-is-better-for-cold-nights-and-which-one-for-hot-nights-Why
What is the difference between a duvet and a down alternative comforter? Which one is better for cold nights and which one for hot nights? Why? - Quora
Answer: A duvet is a cover that has an opening at the top so you can fit in whatever you would like to make it lighter or heavier. Sometimes you can buy one filler blanket and multiple duvets and just put the filler blanket in which duvet you are using at the time. The negative of the duvet is it...
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Rest
rest.com › blogs › sleep › duvet-vs-comforter
Duvet vs Comforter | What's the Difference?
If your bed is king-size, look for the same size in duvet and duvet insert to ensure adequate coverage. Choose a fill material that aligns with your climate and comfort preferences - down offers premium loft, while down-alternatives are great for allergies.
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Cosmopolitan
cosmopolitan.com › lifestyle › bedding and sheets › it's time to settle the great duvet vs. comforter debate
Duvet vs. Comforter: We've Got the Final Word on Which One Is Better for Your Bed
July 19, 2024 - Within a week or two, you might just wake up with the bulk of your bedding lumped toward one side—but it's easily fixed with a hearty shake! Duvets tend to be a bit smaller in size than their comforter counterparts.
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Sleep Foundation
sleepfoundation.org › best bedding › bedding information
Quilt vs. Comforter vs. Duvet | Sleep Foundation
March 23, 2023 - The biggest difference is that they are designed to be used with a separate duvet cover, while comforters have a cover built in. Duvet comes from the French word for down, the soft, fluffy feathers on the stomach and chest of waterfowl that keep the birds warm and insulated from the water.
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Architectural Digest
architecturaldigest.com › shopping › shopping › the best comforters and duvet inserts to grace your bed year-round
9 Best Comforters and Duvet Inserts, Tested by AD (2025) | Architectural Digest
1 month ago - Sourcing the best comforters and duvet inserts—from down toppers to fluffy, featherless options—makes a downy bedscape a reality. We’ve tested dozens of options over the years for our annual Sleep Week, so we know the difference between down and down alternative options.
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Boll & Branch
bollandbranch.com › blogs › content › duvet-vs-duvet-cover-vs-comforter
Duvet vs Duvet Cover vs Comforter | Boll & Branch
But unlike a duvet insert, the outer shell is designed to look and perform like a duvet cover. Since it combines these two functions, it’s thinner and lays flatter on a bed than a duvet and duvet insert. Comforters are typically lightweight or midweight, whereas duvets come in a wider range of weights.
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Puffy
puffy.com › blog › lux comfort › down alternative comforter vs duvet: a complete comparison guide
Down Alternative Comforter vs Duvet: A Complete Comparison Guide
October 28, 2024 - Usage Flexibility: Comforters serve as standalone bedding pieces, whereas duvets require covers that can be changed for different seasons or decor preferences. Structural Elements: Down alternative comforters feature integrated fill material with pre-sewn decorative covering in an all-in-one construction, while duvets consist of a plain outer shell designed for removable inserts and versatile cover options.
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Good Housekeeping
goodhousekeeping.com › home & outdoor › bedroom › duvet vs. comforter: what's the better option for your bed?
Duvet vs. Comforter: The Difference That Matters
August 28, 2024 - A duvet is made up of two pieces, while a comforter is just one. Plus, they differ in thickness, design and functionality. Here are the pros and cons of each.
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Peacock Alley
peacockalley.com › pages › duvet-vs-comforter
Duvet vs Comforter: What is a Duvet? | Peacock Alley
Duvets are typically made in specific weights for different levels of warmth, whereas comforters are made with design aesthetics in mind. Most comforters are not filled with high quality down and may vary in weight (and warmth) depending on the chosen fill.
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NYTimes
nytimes.com › sleep › sheets and bedding › the best comforters
The 6 Best Comforters of 2025 | Reviews by Wirecutter
October 20, 2025 - Like the Garnet Hill Essential Down comforter we recommend, The Company Store's LaCrosse Premium Down Light Warm Comforter doesn't need a duvet cover. Overall we prefer the Garnet Hill comforter because of its lower price, feel, weight, and construction. But the LaCrosse comforter comes in a longer twin XL size for dorms (or tall teenagers), and the colors change more often throughout the year.
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Puredown
puredown.com › blogs › blog › down-blanket-vs-down-comforter-everything-you-need-to-know
Down Blanket vs. Down Comforter: Everything You Need to Know – Puredown
November 29, 2021 - The higher the fill power, the larger the down clusters, which provide improved natural insulation and breathability. They come in various weights (lightweight, all-season, heavyweight) to suit different climates and sleepers. How It's Used: A baffle-box comforter is almost always used inside a protective duvet cover and serves as the main insulating layer on a bed, especially during the winter.
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Hamvay-lang
hamvay-lang.com › blogs › news › what-s-the-difference-between-a-duvet-and-comforter
What’s the Difference Between a Duvet and a Comforter?
February 26, 2020 - At their core, duvets are usually made from down or feathers, while comforters lean more towards other materials. Duvets are usually more fluffy, but comforters are typically larger. A comforter is made to hang over the bedsides, while duvets fit the mattress size.