In my opinion it only works for 2”-4” difference and a very pliable down duvet. If it’s a stiff duvet, it might bunch rather than fluff up. Answer from bschol518 on reddit.com
Videos
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🌐 YouTube
HOW TO MAKE YOUR DUVET LOOK FLUFFY - Home Decorating Tips - YouTube
🌐 tiktok.com
I finally found the perfect pairing! Only took me a year and lots of trial and error 🫠 The winner: super king down comforter 120”x120”+ oversized bedsure home waffle weave duvet cover! I have it in coconut white. for queen bed, try a cali king down comforter with a king duvet cover! both are on my storefront under “amazon bedding favorites” #bedroomdecor #bedroom #bedding #bedroomgoals #beddingset #bed | TikTok
🌐 tiktok.com
☁️ the best Amazon duvet insert ☁️ The trick to a fluffy cloud-like bed is to get an oversized duvet insert! For my king bed, I have an oversized king duvet insert and a king size duvet cover. 🤎 check this out in my Amazon storefront under Bedding ☁️ • • • #neutralbedroom #duvetinsert #amazonduvet #duvetcomforter #amazonbedroomfinds #amazonbedroomessentials #organicmodernbedroom | TikTok
00:30
🌐 YouTube
Oversized king duvet insert on #amazonprimedaysale #amazonfinds ...
02:52
🌐 YouTube
DWR Luxury Oversized King Down Comforter, Hotel Style Duvet Insert ...
🌐 tiktok.com
Best Amazon hack for fluffy bedding. 🤩 A super king duvet insert thats large enough to fill out a whole king size duvet. 👌🏼 Bonus tip: if you want even more fluff, stack two of the all-weather weight duvets on top of each other and then tie into your duvet cover. #amazonhacks #amazonhome #motherhoodunplugged #motherhoodunfiltered #momtok #fyp | TikTok
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Reddit
reddit.com › r/bedding › searching for the fluffiest oversized duvet for my king mattress
r/Bedding on Reddit: searching for the fluffiest oversized duvet for my king mattress
January 9, 2022 -

hello all, im currently looking to upgrade my duvet with the fluffiest and coziest replacement possible. currently i have a regular sized king duvet and cover and honestly it bothers me how small it is. ive been looking for hours for an “oversized king” in canada and i can’t seem to find any decent contenders. help please

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Reddit
reddit.com › r/bedding › fluffy duvet hack — larger insert inside smaller cover? has anyone tried this?
r/Bedding on Reddit: Fluffy duvet hack — larger insert inside smaller cover? Has anyone tried this?
June 27, 2025 -

I’ve seen a lot about a hack where people are getting a duvet insert that is bigger than their cover (such as a king insert for queen cover). I have a king bed and a regular king size duvet (or California king) are too small and don’t cover the sides.

I currently have a duvet cover that is 120x98, so an oversized or palatial king. My insert is supposed to be the same, but it actually is a few inches too small.

Has anyone tried this hack for fluffier bedding? I’m worried it’ll move all around and bunch up in places and be uncomfortable. I also don’t know what size to get for an insert since the next size up is 120x120 which is more than just a few inch difference compared to what I’ve seen others do.

Any recommendations or thoughts?

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Reddit
reddit.com › r/bedding › what size duvet insert for king duvet cover?
r/Bedding on Reddit: What size duvet insert for king duvet cover?
June 10, 2025 -

I’m going for a really full, fluffy look so I pulled the trigger on a king size duvet cover for my queen size bed. The cover measures 108”x 96”.

I’ve always heard to get a bigger insert as well so I’m looking at oversized king (116”x98”). The one I found also has an option for super king (120”x120”).

Is the oversized king insert long enough to give the puff I’m wanting length wise or should I go for the super king? My one worry would be that the super king would get bunchy instead of puffy. Thoughts?

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Reddit
reddit.com › r/bedding › oversized duvet cover & insert
r/Bedding on Reddit: Oversized Duvet Cover & Insert
October 21, 2024 -

Alright, I’d love to hear some suggestions. I’m a bit of a bedding junkie and have been on the lookout for an oversized king duvet and insert. Everything I find is not big enough and have settled for a comforter that I do not like. It’s 120x120”. The size is great. The thickness is not.

Our bed is high and I don’t like to see the sheet on the sides. Ideally I like to tuck everything in.

So, does anyone have a recommendation for anything they’ve found? Bonus points if it comes in a heavier down for cold Chicago winters.

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Reddit
reddit.com › r/interiordesign › king bed duvet
r/InteriorDesign on Reddit: King Bed Duvet
September 14, 2023 -

Hi!

I have always ordered my duvet a size larger than the bed itself (queen duvet for a full bed, king duvet for queen bed, etc.) because I like the way it looks. I ordered the Nectar Premier King (80L x 76W) and I am so confused by all of the king duvet options .. It seems a california king duvet will just be longer but not necessarily wider, & then there are so many variations of “oversized king,” (alaskan, Wyoming, etc). I am not sure which size duvet to order for a standard king bed to get the oversized look - if anyone has any thoughts please let me know!

TLDR: I am not sure which size duvet to order for a standard king bed to get the oversized look

Top answer
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Use not one, but TWO thinner duvets. Together it gives the puffy cloud-like catalog "look" and fills in all the sad spots.
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To get the oversized look for your standard king bed, you should order a duvet that is at least 12 inches wider and longer than your bed. This will give you enough extra fabric to drape over the sides and bottom of your bed, creating a luxurious and inviting look. Here are a few specific duvet sizes that you may want to consider: * **Oversized King Duvet (120" x 120"):** This duvet size is perfect for creating a truly oversized look. It will give you plenty of extra fabric to drape over the sides and bottom of your bed, and it will also be large enough to accommodate two people. * **California King Duvet (108" x 96"):** This duvet size is slightly smaller than the oversized king, but it will still give you an oversized look. It is a good option if you are looking for a duvet that is not too large. * **Wyoming King Duvet (108" x 108"):** This duvet size is the same width as the California king duvet, but it is 12 inches longer. This is a good option if you have a tall bed or if you like to tuck your duvet in at the bottom of your bed. Ultimately, the best way to choose the right duvet size for your needs is to measure your bed and decide how much extra fabric you want. You may also want to consider the height of your bed and how much you like to tuck in your duvet. Here are some additional tips for creating an oversized look with your duvet: * Choose a duvet that is made from a lightweight and flowing fabric, such as cotton or linen. This will help to create a more draped look. * Use a duvet insert that is slightly smaller than the duvet cover. This will create a more puffed-up look. * Tuck in the duvet at the top of the bed and drape it over the sides and bottom of the bed. You can also use duvet clips to keep the duvet in place. I hope this helps!
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Reddit
reddit.com › r/bedding › does anyone make an oversized king down comforter/insert with duvet covers that fit it?
r/Bedding on Reddit: Does anyone make an oversized king down comforter/insert WITH duvet covers that fit it?
March 27, 2023 -

I'm looking to invest in new bedding. Our current Ikea down comforter doesn't even go over the edges of our king bed, it just sits on top and leads to blanket wars at night.

I'm looking for a new light to medium weight down comforter that is oversized, but that also can fit in a nice duvet cover. I like the Quince sets in terracotta, but the duvet covers don't fit comforters much bigger than what we already have. I've found the giant oversized comforters, but no duvet covers that fit them. Does anyone sell decent versions of both?

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Reddit
reddit.com › r/bedding › oversized queen, or king duvet insert for queen bed?
r/Bedding on Reddit: Oversized queen, or King duvet insert for queen bed?
August 23, 2023 - Really stumped on this. I’m reading a lot that a queen does best with a king duvet insert, is this true? My frame is 14in and mattress is also 14in I…
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Reddit
reddit.com › r › Bedding › comments › 1i93btv › searching_for_the_fluffiest_oversized_duvet_but
Searching for the fluffiest oversized duvet (but not too warm ...
September 2, 2024 - Currently, I have a regular sized king duvet insert(Hotel Grand European White Down Comforter from Costco), and there practically zero draping on the sides and it is quite honestly too warm, but the fluffiness of it is perfect. I’ve been looking for hours for an "super/oversized king", preferably ...
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Reddit
reddit.com › r/bedding › very annoyed by the extra space in my king duvet cover with king insert. is this normal?
r/Bedding on Reddit: Very annoyed by the extra space in my king duvet cover with king insert. Is this normal?
May 6, 2025 -

Hi, all! Have a king duvet insert inside a king duvet cover. There’s always extra room on just one side of the cover which makes the blanket as a whole one sided and hard to keep straight and even on the bed. I know there’s a hack for getting rid of this extra space by putting a larger insert in a smaller cover, but that it’s mostly used to create a fuller look or feel. I don’t care about either of those things. I just want the duvet insert to reach the ends of the duvet cover. Either way, I have a king bed and a king duvet cover so I can’t switch to a queen cover with a king insert because it won’t be large enough for the bed? Is there a bigger insert than a king I can use in my king cover to remedy this situation, or some other hack to get the insert to fill up all of the space on the cover? Thanks in advance!

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Reddit
reddit.com › r/bedding › why are duvets and covers too short for my king bed? where do i find bigger ones?
r/Bedding on Reddit: Why are duvets and covers too short for my king bed? Where do I find bigger ones?
June 27, 2025 -

I recently switched from a comforter to a duvet and insert from Quince. I got the bamboo duvet cover and love how it feels. The issue is that my mattress has an eggshell topper on it so the duvet doesn’t cover the entire mattress on the sides, and I hate how that looks. When comparing measurements to other brands, it seems every brand has different measurements for duvets and inserts for king size beds. The quince one is 108x92. Never had this issue with the comforter as it was plenty long enough on either side of the bed.

Because of the size issue I have to return it, but where can I find a duvet cover that feels the same but is oversized?

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Reddit
reddit.com › r/bedding › best oversized king down comforter with duvet
r/Bedding on Reddit: Best oversized King down comforter with duvet
September 22, 2025 -

I am looking for an oversized king down comforter that doesn’t leak, and that is good quality. I’ve looked into The Company Store, Feathered Friends, and Costco. Please provide a link so I can see exactly which one you recommend and how long you’ve had yours!

How do you guys find a matching duvet size for the oversized? Do you stuff it in a regular duvet for extra fluffy or have a recommendation where to find the oversized duvet? Amazon didn’t seem to have the size I was looking for. Links appreciated!! Thanks!

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Reddit
reddit.com › r/bedding › oversized king duvet covers
r/Bedding on Reddit: Oversized king duvet covers
November 6, 2025 -

When I moved in with my fiancé we took his king bed for us to use. With a regular king duvet I found it wasn’t big enough to drape over the sides of the mattress so I discovered the “super king” or “oversized king” duvet size 120x98 and absolutely love the size! Anyone know where to buy more duvet covers in this size? Anything besides Amazon in US or Canada. Only sponsored posts from Amazon show up when I google it or duvet covers that aren’t the right size.

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Reddit
reddit.com › r/bedding › looking for a puffy duvet insert that will give me this cloud look under $300 that is an all seasons weight
r/Bedding on Reddit: Looking for a puffy duvet insert that will give me this cloud look under $300 that is an all seasons weight
December 17, 2024 - I got an “oversized king” insert from amazon over Black Friday and stuffed it in a regular king cover and it’s literally the fluffiest thing e v e r. ... I bought this duvet in March and I'm SHOCKED at how good it is. Looks like it's not available anymore but I will 100% be purchasing ...
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Reddit
reddit.com › r/bedding › guide/recs for buying oversized duvet/comforter?
r/Bedding on Reddit: Guide/recs for buying oversized duvet/comforter?
July 21, 2023 -

Hey all, I'm in the process of redoing my bedroom and it is way past time to replace all the bedding and pillows. I've always wanted to do one of those giant oversized comforters. Like where they touch the floor on every side. My bed is a little tall (and a queen size) so I'm not sure how to measure to make sure I'm getting the right size. Any advice?

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Reddit
reddit.com › r/homeowners › help - palatial king duvet insert
r/homeowners on Reddit: HELP - Palatial King Duvet Insert
September 21, 2023 -

Been sleeping like shyte for a while, so I decided to do a whole bed revamp. - I bought a palatial king duvet insert (120”x98”) and an oversized king duvet cover (120”x98”), but being just the right size didn’t give me the full, “over-stuffed” look I want. — Does anyone know where to get a 118”x96” duvet cover or somewhere that does custom covers?

Ps. I’m fully aware I’m being extra, but this stuff is expensive, so I’m going to make sure it’s what I want. 🙃

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Reddit
reddit.com › r/bedding › king duvet inside a queen sized duvet cover trick (but for king sized duvet cover)
r/Bedding on Reddit: king duvet inside a queen sized duvet cover trick (but for king sized duvet cover)
June 17, 2024 -

I know people put king inserts into queen duvet covers for extra fluff and to make sure the insert is filled out. I have a king sized bed and I want a duvet that is bigger than a standard king to put into my standard king duvet cover so that it has that extra fluff. Any recommendations on extra larger king duvet inserts? I would like something reputable and down alternative.

Top answer
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UPDATE TLDR -- 1. read measurements before you buy, every brand is a bit different. 2. A reasonable size difference will indeed make it look extra fluffy and stuffed, I was off on my measurements before. 4. material matters--the weight of your cover will condense the fluff. It's all personal preference, buy with a good return policy! . . Okay wow, I realized what I did wrong lol. I was using a queen duvet insert in an Australian size.... The Australian queen duvet cover standard size is 82in x 82in, a square (the US standard is ~ 90 x 96). My duvet insert is a king/cal king duvet insert that measures 104in x 88in which is why it was bunching up length-wise. Yeah.. that's a major difference in size. I just put this same king duvet insert into a queen size duvet cover that measures 90 x 96 and it fits perfect, maybe even a little roomy. I feel especially silly though because I actually like how puffy it was in the Australian small duvet cover. It may have been bunchy but it felt poofy, and I'd rather feel my bedding than look at it lol. soooo for anyone else deciding whether or not to do this is, my personal conclusion is this: -Read the measurements of both the duvet cover and your duvet insert, I have found that almost every brand varies a little. -Take a measurement with a ruler/your phone/whatever to actually imagine what the difference is -Check how much the duvet cover weighs. a heavier cover will condense the fluffiness. -It all comes down to personal taste. Yes, if your duvet insert is 22 inches longer it will be bunchy, but maybe you like how that feels. 🤷‍♀️ . previous post: hey so I actually just did this for the first time with my new duvet insert (put a king inside of a queen cover) and instead of just getting extra fluffy, there is just a definite noticeable wrinkle length wise and it looks weird.... im sad because I wanted it to be fluffy, but instead it just looks bunchy. just giving you a heads up because it is noticeable enough I'm returning it. would love any advice from anyone who's been able to make this work, maybe I did something wrong idk?
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I just recently purchased an oversized king comforter duvet insert. It’s a little larger than the duvet cover and works for the stuffed duvet look. Check Amazon