15 Best Duvet Inserts for the Best Sleep of Your Life, Tested and Reviewed for 2025
Dreams really do come true…
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Alright, get in close, because I’m about to explain how hotels and home catalogs get that beautifully fluffed-up effect with their bedding. Don’t get me wrong—you’ve probably got all the right stuff on your bed (like comfortable pillows, super-soft sheets, and a pretty duvet cover) but you’re probably sleeping on the real secret to fluffy, sink-right-in, best-sleep-of-your-life bedding: duvet inserts.
Your ideal duvet insert really depends on what you’re looking for, whether that be soothing weight or temperature regulation. So if you tend to sleep hot or cold, not to worry—there are lightweight cooling duvets that won’t make you sweat, plus toasty-warm winter comforters below. We even have alternatives to your typical down duvets (a worthy investment, IMO, but not exactly cheap or vegan-friendly) like natural bamboo and other plant-based down alternatives. Go ahead and take a peek at some of our faves…
Our top picks for the best duvet inserts of 2025:
Good, right? Don’t worry about falling down an endless internet wormhole of every bedding option out there, because we’re already one step ahead of ya—keep scrolling for the best duvet inserts in each category below. (Oh, and JSYK, all the prices below are for queen-sized duvets but each option comes in other sizes as well!)
Pros
- Suuuper warm and fluffy
- Filled with quality down at a fraction of the price
Cons
- A bit too noisy for some reviewers
- Some say fabric is a lil stiff and slightly rough
Why, yes, you *can* get a sustainably-sourced down-filled comforter without spending hundreds, and this bb is proof. Ideal for year-round use, this cloud-like duvet insert (which comes with a silky Egyptian cotton shell) boasts eight corner loops to keep your cover in place, as well as a baffle-box construction to keep the down fill evenly distributed. And though dry cleaning is recommended, reviewers say it holds up fine in the wash.
- Shell material: Egyptian cotton
- Fill material: Down and feather fiber
- Sizes available: Twin, full, queen, king, Cal king, palatial king
- Warmth level: All-season
- Care instructions: Dry clean recommended
THE REVIEW: "Wow! Amazing quality, especially for the price point," reads one review. "The warmth is so even. As soon as I opened it, I threw it around to fluff, then put it in the dryer on air dry. A few more fluffs from me, and I put it on my bed. The squares are completely full. 100 percent happy with my purchase."
Pros
- Comes in three weight options
- Loft stays evenly distributed
Cons
- Some reviews complain about shedding
- Not machine-washable
Yes, down comforters can be a liiiiittle pricey, but this one is def worth the splurge (especially if you're already obsessed with Brooklinen's dreamy sheet sets). Sustainably sourced and made with a silky 100 percent cotton sateen shell, this fluffy down cluster-filled duvet comes in three different weight options—though the all-season is best for year-round comfort.
- Shell material: Cotton sateen
- Fill material: Down
- Sizes available: Twin/twin XL, full/queen, king/Cal king
- Warmth levels: Lightweight, all-season, or ultra-warm
- Care instructions: Spot clean recommended; dry clean if needed
THE REVIEW: As one tester writes, "Living in Florida, it is difficult to find a comforter that is light, comfortable, and airy. I have had multiple duvet covers/insert and comforters, and my Brooklinen Down Comforter has been by FAR the best. I cannot recommend product and brand more!!"
Pros
- Great quality for the price
- Comes in 10 different color options
Cons
- Synthetic materials may trap heat
- Not as fluffy as some would like
This fluffy yet breathable down alternative comforter has earned nearly 30,000 five-star reviews on Amazon for a reason: It's ah-mazing quality for the price. Though it's not the loftiest option, you'll love the leak-proof box-stitch design, the lightweight feel, the corner tabs, and the fact that it comes in 10 colorways—all for less than $70.
- Shell material: Polyester
- Fill material: Polyfill
- Sizes available: Twin, twin XL, full, queen, oversized queen, king, oversized king, Cal king
- Warmth level: All-season
- Care instructions: Machine wash in cold water; tumble dry on low heat
THE REVIEW: "This comforter is extremely well made," one buyer notes. "I was using a thinner down comforter and needed another one. It’s not too thin or thick and is super comfortable. The fabric is very smooth and breathable. I typically sweat in my sleep but haven’t so far with this comforter. Really happy with it and highly recommend!"
Pros
- Upcycles approximately 50 plastic bottles
- Hypoallergenic
- 7 night free trial
- Corner loops to secure the duvet to a duvet cover
Cons
- A little on the heavier side
FYI, I’ve been sleeping under this bad boy for six months now, and it delivers Every! Single! Night! It’s filled with 100% GRS-certified recycled PET fill (a v convincing hypoallergenic down alternative, so no feather bits sticking out) and it’s so f’ing comfy. I usually have to use a second blanket under my duvet during the winter, but the Buffy Cloud Comforter has gotten me through the worst of the cold on its own! It has a good amount of fluff and a very slight weight to it, which I find to be super soothing when you’re lying underneath. Oh, and this option even has thoughtful loops for easily attaching a duvet cover, so laundry day will no longer be the bane of your existence!
- Shell material: TENCEL™ eucalyptus lyocell
- Fill material: 100% GRS-certified, BPA-free, recycled PET fill
- Sizes available: Twin/twin XL, full/queen, king/Cal king
- Warmth levels: All-season
- Care instructions: Machine wash cold on gentle with a pro-planet detergent and machine dry on low
THE REVIEW: “We love this comforter,” one reviewer writes. “It’s both lightweight and warm. We like to sleep in a cold room and both experience temp fluctuations throughout the night. Other blankets had us flipping them on and off again to stay comfortable. This blanket is just right all night long.”
Pros
- Good temperature regulation that keeps you comfortable at night
- Doesn’t make any sound when you move around
- Has eight loops (corners and sides) to secure the duvet to a duvet cover
Cons
- Not machine washable, dry clean only
- May not be ideal for hot sleepers
If your goal is fluff to the max, this is the duvet insert for you. I’d even recommend double-stuffing to really get that oversized, plush look. Don’t panic if it looks flat right out of the box—customers recommend tossing the duvet in the dryer on low heat for 10 minutes after you take it out of the vacuum-sealed packaging to achieve that extra cloud-like feel!
- Shell material: 400 thread count poly-cotton blend
- Fill material: 50% down fiber, 25% down, 15% feather fiber, 10% feathers
- Sizes available: Twin, queen, oversized queen, king, oversized king, California king, super king
- Warmth levels: All-season, lightweight warmth, winter-weight
- Care instructions: Dry clean only
THE REVIEW: “After searching for the perfect comforter and taking a couple days to review each one, I decided to order this one. BEST DECISION EVER! BEST SLEEP I'VE HAD IN FOREVER! This momma-to-be is so pleased and best $200 spent. I decided to order the heavy weight full warmth comforter since we keep our house very cold & I am always cold—this definitely keeps me EXTRA warm at night, but not only does it keep me warm, if I get too warm I'll lay on top and it's extremely cooling at the same time. The fluffiness is amazing. I was scared the comforter wouldn't be fluffy enough, but this one definitely is. I've worked at 5-star hotels and this comforter definitely compares to the ones at the hotels, but in my opinion is even better. I couldn't be happier. I definitely saw the fluff after 2 hours, but the next day it was even fluffier. I am so happy & definitely will buy another for our guest bedroom. Lastly, this comforter doesn't make any crackling sounds like other ones I found & it's just truly amazing for the price."
Pros
- Eight loops to secure the duvet to a duvet cover
- Easy to fluff up in the dryer
- Soft brushed fabric feel
- Budget-friendly
Cons
- A little on the heavier side at six pounds
Want the coziest sleep of your life for $25? Presenting a surprisingly affordable down comforter option: this v good find from Amazon. It boasts over 50,000 five-star reviews and is filled with a down alternative made of 100% polyester—shoppers say it’s ideal for the winter months without being too heavy. Best of all, you can easily toss it into the wash whenever it needs a refresh.
- Shell material: 100% polyester
- Fill material: 100% polyester
- Sizes available: Twin, twin XL, full, queen, oversized queen, king, oversized king, California king
- Warmth levels: All-season
- Care instructions: Machine wash on cold, use the large front-loading washer and dryer. Do not bleach or iron.
THE REVIEW: “This duvet insert is exactly what we needed. It's fluffy and lightweight, warm but not too warm. The 8 loops make it secure inside the cover and keep it in place perfectly,” one customer wrote. “I laid it out flat for a few hours, since it comes vacuum sealed and needs time to fluff up, but I got impatient and just stuck it in the dryer on low for a bit. I swear it came out of the dryer doubled in size. It's perfect. Absolutely no complaints.”
Pros
- Corner loops to secure the duvet to a duvet cover
- Lightweight
- Thermoregulating
- Easy to store
Cons
- Lays flatter than your average duvet insert
Hot summer nights, freezing air conditioning, blasting heat, drafty windows—yikes. Instead of accumulating four different blankets for each season, why not invest in a single duvet to rule them all? This is SlumberCloud’s lightest option, ideal for literally every season (yes, including summer!) thanks to the NASA-engineered technology that keeps you in the “just right” zone all night. The duvet will absorb excess heat to prevent you from overheating, and if your temperature begins to drop, that stored heat will be released back into your skin. Nifty, huh?
- Shell material: 100% cotton
- Fill material: Hypoallergenic ClimaDry™ by Outlast fiberfill
- Sizes available: Twin XL/twin, queen/full, king/Cal king
- Warmth levels: All-season
- Care instructions: Machine wash
THE REVIEW: “I first slept under this type of comforter when traveling and fell in love with it being somewhere between a blanket and a comforter,” one reviewer wrote. “Not bulky like a full-on comforter can be, but cozier than just a blanket. My husband and I are loving this product! Just what I was looking for and now he is sold on it as well!”
Pros
- Flexible fill options if you want more fluff
- Corner loops to secure the duvet to a duvet cover
- Soft, cloud-like fabric
- Enhanced weave to prevent pilling
Cons
- On the pricier side
If you’re in a ~thermally-incompatible~ relationship (basically, the bed is never the right temp for both of you), this temperature-regulating duvet might just change the game. The bamboo viscose fabric will wick away moisture, regulate heat, and somehow keep you warm without ever feeling overly heavy as you dream. Plus, it’s just so dang luxe—one shopper wrote that this comforter feels “like money.”
- Shell material: 100% viscose
- Fill material: Bamboo viscose, standard or extra
- Sizes available: Twin, queen/full, king
- Warmth levels: All-season
- Care instructions: Spot clean or dry clean, hang dry in mild to moderate sunlight once every 3-5 months for 1-3 hours—the brand says that regular or excessive washing of our comforters is unnecessary if you are using and washing your protective duvet cover
THE REVIEW: “These comforters—this is my second one—are just plain old perfect! Abundant softness, luxurious feel and, I’m not sure how they do it, but they are light, drape over your body - and are always the right level of warmth,” one customer wrote. “I get too hot under a down comforter. The bamboo comforters feel warm within minutes, but never are too hot. Did I mention washable? The best.”
Good news—just because you sleep hot doesn’t mean you’re sentenced to thin, flat blankets forever. Customers describe this hiiiighly breathable option that rings up at a mean $26.99 and weighs less than three pounds (!) as “surprisingly great,” “not too hot,” and “insanely perfect.” It’ll gently contour to your body without feeling too warm and even has box stitching to prevent filling from shifting around in the insert.
- Shell material: Polyester
- Fill material: Down alternative
- Sizes available: Twin, full, queen, king, oversized king, California king
- Warmth levels: Summer weight
- Care instructions: Machine wash on cold
THE REVIEW: “I am in love with this comforter!!! My boyfriend got the same one. It is so comfortable!!! It's lightweight but warm and so soft and it cools you down, too,” a shopper wrote. “So far this is one of the best comforters we've ever had!!! Would DEFINITELY and probably will purchase again. Awesome product!!!”
Pros
- Available in 15 colors and patterns
- Silky-soft and surprisingly well constructed
Cons
- Corner loops are a bit small
- Not very plush, per some reviewers
If you're not looking to drop a ton of $$$ on a new comforter, then pls turn your attention to this ridiculously affordable duvet insert from Utopia Bedding. For less than $50, this option (which currently has over 86,000 five-star reviews on Amazon, nbd) is soft, breathable, and comfy, with sturdy box stitching, piped edges, and corner loops for attaching a cover if you choose. Plus, it's available in a dozen different colorways.
- Shell material: Polyester
- Fill material: Siliconized fiberfill
- Sizes available: Twin, full, queen, king, Cal king
- Warmth level: All-season
- Care instructions: Machine wash in the gentle cycle with cold water; line dry or tumble dry on low heat only
THE REVIEW: "The comforter is light, but that also makes it breathable and warm!" reads one review. "I have been impressed with the temperature regulation of the comforter, as I've neither woken up from cold or heat. It's easy to wash and looks and feels great. I think for the price, it's a fantastic choice."
Pros
- More breathable and affordable than traditional down comforters
- Provides balanced, all-season warmth
Cons
- May seem a bit noisy and stiff initially
- Not machine-washable
The reason why people looovvveeee sleeping in hotel beds so much is because of the luxe bedding, of course! And with Fluff Co., you can have five-star hotel-quality bedding at an affordable price. This option has a smooth cotton cover filled with a mixture of down and sorona—a plant-based material that's super-soft and breathable—and the result is so, so fluffy (hence the name).
- Shell material: Cotton
- Fill material: Down and sorona
- Sizes available: Queen, king
- Warmth level: All-season
- Care instructions: Dry clean only
THE REVIEW: "I've been looking for a good down comforter for a while now. With this one, I've honestly never looked forward to getting into bed more," one reviewer writes. "I swear, the duvet is soooo comfortable, and I especially love that it keeps me at a perfect temperature as I sleep, which is so important!"
Pros
- Very low-maintenance
- Fill is lofty and breathable
Cons
- Some reviewers wish it had duvet loops
- Not as cooling when used with a cover
For deliciously chilly sleep, you should check out this beauteous blanket from Rest. Complete with a shell made of nylon and spandex that mimics the feel of silk and fluffy (yet breathable) sorona fill, this duvet is seriously good at keeping its chill—plus, it resists wrinkles and pilling and is so easy to clean.
- Shell material: Nylon and spandex
- Fill material: Sorona
- Sizes available: Twin/twin XL, full/queen, king/Cal king
- Warmth level: All-season
- Care instructions: Machine wash in cold water; tumble dry on low heat
THE REVIEW: "I got it a few days ago and have been trying it for the last few nights, I am confident that this is the best comforter for hot sleepers out there," one tester writes. "I've put the AC on slightly and it's just perfect. It has this magical cool feeling that actually cools me down at night! Another huge plus is that it is crazy comfortable. Sooooo smooth and soft. I definitely recommend it for all the hot sleepers out there."
Pros
- Comes in two weight options
- Fabric is breathable and cool-to-the-touch
Cons
- Can only be dry-cleaned
- Tends to slide around inside duvet cover
Love bamboo sheets? Then you'll <3 this light and breathable comforter from Ettitude, which is wildly soft and made with bamboo lyocell (aka CleanBamboo, which is more sustainable to produce than bamboo viscose). It comes in two different weight options, and even though it's dry-clean-only, this bb is worth the hassle (especially since it has handy corner ties!).
- Shell material: Bamboo lyocell
- Fill material: Bamboo lyocell
- Sizes available: Full/queen, king/Cal king
- Warmth levels: Summer weight or winter weight
- Care instructions: Dry clean only
THE REVIEW: "Absolutely fantastic comforter," one reviewer writes. "Out of this world comfort. Talk about being cozy. It keeps me warm but allows airflow to let my body breathe. I highly recommend the lightweight version for hot sleepers. Game changer."
Pros
- Sateen weave gives it a silky-smooth feel
- Comes in three pretty color options
Cons
- Some found it sleeps warm
- Not as durable as some would like
For a temperature-regulating, all-season comforter that won't break the bank, you'll wanna check out this down alternative option from Sheets & Giggles. This gorge duvet has a 100 percent eucalyptus lyocell shell that's soft, smooth, and cool-to-the-touch, as well as eucalyptus and recycled polyester fill that'll make night sweats a thing of the past. It comes in three colorways and includes four corner loops.
Shell material: Eucalyptus lyocell
Fill material: Eucalyptus lyocell and recycled polyester
Sizes available: Twin, queen, king
Warmth level: All-season
Care instructions: Machine wash in the gentle cycle with cold water; tumble dry on low heat until mostly dry, then finish off with a hang dry
THE REVIEW: According to one tester, "This comforter is so wonderful. It's incredibly soft, lightweight, breathable and, best of all, allergy resistant. I sleep and breathe better with it, and my partner complains less about being too hot or sweaty at night. Totally worth it. Wish I had gotten this sooner and ditched cotton ages ago. Highly recommend!!"
Pros
- Incredibly plush and so, so warm
- Available in three densities depending how you sleep
Cons
- Def not cheap
- May sleep a bit too hot for some
Anyone who's willing to shell out big bucks for a new duvet should feast their eyes on this suuuuper-luxe option from Boll & Branch, which boasts an organic cotton shell and unique bafflebox construction for an incredibly lofty lewk. Though breathable, this duvet is wildly full and fluffy, and while the ultraweight option is best for cold sleepers, reviewers say that even the lightweight version of this one is toasty-warm.
- Shell material: Organic cotton
- Fill material: Down
- Sizes available: Full/queen, king/Cal king
- Warmth levels: Lightweight, midweight, or ultraweight
- Care instructions: Machine wash in the gentle cycle with cold water; tumble dry on low heat only
THE REVIEW: "Absolutely worth the investment," notes one buyer. "Exceptionally well-made, high-quality craftsmanship, and extremely durable. This is like the cast iron of duvet inserts—it’s heirloom-quality good. Had a very peaceful, cozy, but not overheated night's rest."
So, like, what exactly is a duvet insert?
If you're not clear on the difference between comforters and duvet inserts, it's because they're kiiiinda the same thing. The big distinction: duvets are typically meant to be paired with duvet covers, while comforters are usually used on their own. Duvet inserts are usually fluffier than comforters as well, and unlike comforters, most duvets are plain white, since you can easily jazz 'em up with a cute duvet cover.
What is the best type of duvet insert filling?
Alright, so you’ve got a couple different options, and it really boils down to your personal preference:
Traditional, regular down filling typically consists of lightweight goose or duck plumage and feathers—it retains heat well, making it ideal for cold sleepers and winter months, and tends to be on the more expensive side.
For the more budget-conscious (or vegan!), alternative down is usually made of synthetic materials like polyester. It’s a hypoallergenic option that shouldn’t trigger dust or dander allergies the same way regular down might.
For those who are looking for more natural fill options, look for a duvet insert made with bamboo, eucalyptus, wool, or even silk, if you’re feeling splurge-y. Natural fibers tend to be more on the breathable side, so you’ll get the super plush effect of a duvet insert or two without overheating in the middle of the night!
How much does a duvet insert cost?
The cost of a duvet insert totally depends on the type and quality of the materials used. You can expect to pay more for real down or natural fibers than synthetic fills and shells. Luckily, the duvet inserts included in this article range from under $50 to over $500 for a queen-size duvet, so you can choose based on your budget. Some companies even offer a free trial period for you to sleep-test your duvet insert, so you can truly have peace of mind when committing to your final choice!
How to choose the best duvet insert
Selecting a duvet insert is one of those things that is completely left up to personal preferences, but when shopping for the right duvet, here are some things to look for:
Find the right weight
Duvets are notoriously known for being pretty warm—which isn't exactly great for hot sleepers. But the good news is there are different duvet weight options to choose from, so if you tend to have sweaty snoozes but still want that fluffy duvet experience, then you can (literally) rest assured that there’s a lightweight or cooling duvet for you. Typically, you can find duvet inserts available in these weight levels: lightweight, heavyweight, or all-season.
Lightweight options are great for warmer months and hot sleepers, while heavy duvets are fantastic for colder months and cool sleepers. And all-season duvets are exactly what they sound like—duvet blankets that are suitable for year-round use, thanks to their temperature-regulating fill. If you want to get really fancy with it, some companies offer two or three different weight options to really help you customize your sleep experience.
Consider the care instructions
Since duvet inserts are meant to be put inside a duvet cover, they typically only need to get washed every four to six months. However! Spills can and do happen, and getting your duvet professionally laundered can be expensive (not to mention a pain). If you have pets or kids (or just happen to be v spill-prone), consider skipping the spot-clean-only or dry-clean-only duvets for something you can easily toss in the wash at home.
Why trust 'Cosmo'?
Not to brag or anything, but helping you (yes, you!) obtain The Perfect Night of Sleep™️ is one of our many specialties here at Cosmo. For those who are tired of tossing and turning under an uncomfy duvet at night, our informed editors scoured through reviews to select the duvet inserts that really deserve the hype, all for your next cool, relaxing round of Zzzs. Sweet dreams.
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