A duvet cover is a soft layer that you add over a duvet insert to create a colorful look and a warm, cozy feel. Think of this bedding style as a giant blanket cover case, and the duvet insert as a giant pillow. Simply slip your duvet cover over your bedding to add an extra layer that’ll bring your bedroom a touch of color, softness, and warmth. When shopping for the best duvet covers, it’s important to make sure that you choose the right size, style, and material to ensure that it suits your needs and your bedroom. Our duvet buying guide is here to help you learn how to choose a duvet cover based on your space and existing bedding, so read on to learn more.
Quick Answer
To choose a duvet cover, match it to your duvet insert size (not just your mattress) and prioritise natural, breathable fabric — GOTS-certified organic cotton (percale for crisp/cool, sateen for silky) or linen — with a secure closure (zip or button) and inner corner ties to stop the insert sliding. Buy the cover 2" larger than the insert for a relaxed drape, or exact-size for a crisp look. Avoid heavy synthetics and "wrinkle-free" chemical finishes. Or & Zon's organic cotton and linen covers are sized for the signature hotel drape with front-zip closures and corner ties.
Key Takeaways
- Match the cover to your insert, not just your mattress. Duvet cover sizes are larger than mattress sizes — buy by insert dimensions.
- Fabric decides comfort: natural, breathable organic cotton (percale or sateen) or linen; avoid heavy synthetics and formaldehyde "wrinkle-free" finishes.
- 2" larger = relaxed drape; exact-size = crisp look. Account for 3–5% shrinkage on the first wash when sizing.
- Closure + corner ties matter. A zip or button closure plus inner corner ties stops the insert bunching and sliding.
- You can use a comforter inside a cover — it keeps the comforter clean and lets you restyle without buying new bedding.
- Certification is the quality shortcut: GOTS/OEKO-TEX guarantees no irritant chemicals against your skin.
Related: why 3 in 5 German and Austrian couples already use separate duvets.
What to look for when buying a duvet cover?
There are several different types of duvet covers and many important features to look for when you’re buying a duvet cover. Keep these duvet cover tips in mind as you shop for the best option for you.
- Quality of materials: The best duvet cover material features soft, organic fabrics like 100 percent organic percale cotton, organic sateen, or linen styles that you’ll find at Or & Zon. These materials are lightweight, breathable, and environmentally friendly. Avoid using duvet covers made of thick, heavy materials like flannel or synthetic materials that may contain harsh chemicals. Both organic cotton and linen are not only hypoallergenic, but they’ll keep you nice and warm in the winter and comfortable and cool in the summer.
- Style and design: Just like most other types of bedding, you’ll find a wide range of duvet cover sizes, styles, and designs. A solid color works well for a versatile look that you can easily pair with a variety of furniture and decor styles. Printed or patterned duvet covers feature everything from classic plaid and pinstripe patterns to fanciful florals or bold modern geometric motifs. Compare an assortment of styles and colorways to help you determine which one will look best in your bedroom. When in doubt, it’s best to choose duvet covers featured in a neutral, solid hue, so it’s easy to match with anything.
- Closure type: Duvet covers feature a closure at one end that holds the blanket or comforter inside in place. A different standard duvet cover closure may feature a row of buttons, while others may zip closed or use strips of fabric to tie the cover shut. Whichever closure you type choose, make sure that the duvet cover also includes small ties located at each inside corner. These ties are designed to attach the comforter to the inside of the duvet cover, so it stays in place and doesn’t bunch up or slide around. The easiest duvet cover closure is either a zipper or button closure, while tie closures add a laid-back, romantic look to your sleeping space.
- Ease of care and maintenance: Machine-washable duvet covers make it easy to keep them clean. Read the care instructions carefully to ensure that your new duvet cover is easy to maintain. Most duvet covers don’t need to be ironed since they’ll typically look wrinkle-free right from the dyer. However, certain materials may be dry clean only, so it’s a good idea to check before you purchase one just in case. Overall, anything that can be washed and dried at home is the easiest to care for.
- Price range: Duvet covers range in price based on the materials, brand, and other factors. In general, duvet covers tend to cost approximately $30-$50 on the lower end, and closer to $200 or more on the higher end. In most cases, you’re paying for quality, so don’t skimp on price if you’re planning to enjoy your duvet cover for a long time.
| What to check | What to look for |
|---|---|
| Material | Natural + breathable — organic cotton percale (crisp/cool) or sateen (silky), or linen. Avoid synthetics + "wrinkle-free" finishes |
| Certification | GOTS or OEKO-TEX — guarantees no irritant processing chemicals |
| Closure | Zip or button (easiest); plus inner corner ties to hold the insert |
| Size | Match the insert: exact-size for crisp, +2" for relaxed drape |
| Care | Machine-washable; avoid dry-clean-only unless you want the hassle |
Should your duvet cover be the same size as your duvet?
When you shop for duvet covers, it’s important to select one in the appropriate size. For example, a full duvet cover should mention that it’s a full duvet size on the packaging. In general, the duvet cover should fit a duvet or comforter that is approximately two inches larger or smaller in dimension overall. Purchase a larger duvet if you want a snug fit or select one that’s slightly smaller if you want it to fit a little bit looser. Remember that once you wash the duvet cover, it could shrink anywhere from three to five percent in total size. A duvet that’s too large won’t fit inside the duvet cover correctly and will end up being “scrunched up,” while duvets that are too small won’t stay securely in place inside the cover.
Related: Comforter size chart
Pros and cons of matching or mismatching sizes
Some people prefer their duvet insert to be the exact same size as the duvet cover sizes in inches. Others might want to select an insert that’s slightly larger or smaller than the cover itself. There are pros and cons of duvet covers for both of these options.
First, a duvet that’s slightly smaller than the cover creates a relaxed, lived-in look and feel. However, if it’s too small, it will slide around and won’t usually stay in place, resulting in the duvet becoming wrinkled or bunched up to one side. Duvets that are larger than the cover will have a tighter fit that tends to look crisper and more polished. However, if the duvet cover shrinks after it’s washed, it will end up being too small for the duvet to fit inside.
How to measure your duvet and duvet cover to ensure a proper fit
Use this chart to determine which duvet cover size you need for a proper fit:
| Size | Duvet cover dimensions |
|---|---|
| Twin | 68" × 86" |
| Twin XL | 68" × 90" |
| Full | up to 86" × 86" |
| Queen | 90" × 90" |
| King | 104" × 92" |
| California King | 104" × 92" |
You can purchase your duvet cover based on the size of your mattress, or on the actual comforter/duvet insert you’re using. In most cases, it’s best to buy a duvet cover that’s approximately two inches shorter than the filler on all sides to create a full look, but it could also cause the duvet to bunch to one side. In this case, choose a cover that fits the exact same dimensions as your duvet or comforter for a smoother aesthetic. Make sure you know how to keep a duvet cover in place by tying the strings on each corner of your insert to the four loops located on each inside corner of the cover.
How much bigger should a duvet cover be than a mattress?
Ideally, the size of your duvet cover should be at least 12 inches longer and 16 inches wider than the total dimensions of your mattress. For those with extra-deep mattresses or for people who use thick, pillow-top mattress covers, you may want to choose a cover that’s slightly larger.
Recommended size differences based on mattress size
Keeping the tips and measurements above in mind, it’s ultimately up to you as to which duvet cover size you choose. In most cases, people choose the right duvet cover based on the label that matches their mattress (i.e., full, queen, king, etc.). Here are the six standard mattress measurements you can use for reference when shopping for the best duvet covers:
- Twin mattress: 38” x 75”
- Twin XL mattress: 38” x 80”
- Full mattress: 53” x 75”
- Queen mattress: 60” x 80”
- King mattress: 76” x 80”
- California King mattress: 72” x 84”
Most kids’ bedrooms include beds with a twin or twin XL mattress size. Twin XL beds are slightly longer, making them ideal for older teens or taller children. You’ll typically find a full or queen-size mattress in a guest bedroom, and a queen, king, or California king mattress in the main bedroom. As you can see, the standard duvet cover measurements listed above are much larger than the mattress dimensions themselves. When in doubt, choose a cover that’s labeled with the same size mattress you have at home to ensure a proper fit.

— Or & Zon —
Shop Duvet Covers
Hotel-style 2-4" oversized drape · GOTS-certified organic cotton & linen · front-zip closure.
Duvet cover vs mattress size — quick reference
Duvet covers are sized larger than the mattress so the duvet drapes over the sides. Use this to sanity-check the label against your bed:
| Bed size | Mattress | Matching duvet cover |
|---|---|---|
| Twin | 38" × 75" | 68" × 86" |
| Full | 53" × 75" | ~86" × 86" |
| Queen | 60" × 80" | 90" × 90" |
| King | 76" × 80" | 104" × 92" |
| California King | 72" × 84" | 104" × 92" |
Can I put a comforter in a duvet cover?
What do you put inside a duvet cover? You might think that a duvet insert and a comforter are the same things, but they’re actually different, mostly in terms of how each one is constructed. Comforters consist of one piece of bedding that you can use right out of the packaging. Duvet inserts work more like a fill that’s solely designed to fit inside your duvet cover.
Comforters have a soft, quilted surface with filling that is evenly distributed inside, and a cover isn’t always necessary in order to use them. However, it’s highly recommended that you use a cover with a duvet insert just to protect it and to enjoy a much softer and more comfortable feel when you sleep.
As for whether or not you can put a comforter inside a duvet cover, you can absolutely put a comforter inside of a duvet cover if you choose. Most people do this if they don’t like the color of their comforter or if they just want to add some more layers to their bedding for additional warmth. If you have a basic white comforter, putting it inside a colored or printed duvet cover will give your bedroom a fresh, new look.
Can you use a duvet cover by itself? While you can certainly use your duvet cover on its own, it might not be thick or warm enough to keep you cozy at night. In most cases, it’s best to add your favorite comforter or a nice duvet insert to get that extra layer of warmth you seek.
Pros and cons of using a comforter with a duvet cover
There are a few pros and cons of using a comforter with a duvet cover, including:
Pros- Putting your comforter inside in a duvet cover will help to keep it clean, reducing the number of times you need to wash and dry it.
- Using a duvet cover with your comforter adds a layered, cozy look.
- Adding a duvet cover to a plain comforter helps you create a colorful look. Switching duvet covers makes it easy to add a new style to the bedroom any time you want to change things up.
- A comforter with a duvet cover might be too hot, especially during the summer or if you’re a “hot sleeper.”
- You’ll need to wash both the cover and the comforter eventually, so in the end, it means more laundry for you to do.
- You may have trouble finding bedding to match the duvet cover if you purchased it separately from the rest of a matching bedding set.
- It’s more difficult to find comforters that match the size of duvet covers since they tend to be larger in size than standard duvet inserts.

Comforter sizes
While exact comforter sizes may vary slightly, most comforters come in a few standard sizes. Note that these dimensions are somewhat different than duvet covers, so use them as a guide to help you select the ideal size for your bedding type.
| Size | Comforter dimensions |
|---|---|
| Twin | 66" × 86" |
| Twin XL | 68" × 88" |
| Full | 84" × 88" |
| Queen | 86" × 96" |
| King | 102" × 88" |
| California King | 110" × 98" |
- Twin comforters: 66” x 86”
- Twin XL comforters: 68” x 88”
- Full comforters: 84” x 88”
- Queen comforters: 86” x 96”
- King comforters: 102” x 88”
- California King comforters: 110” x 98”
— Or & Zon —
Ready for the hotel-style drape?
Or & Zon's GOTS-certified duvet covers — organic cotton percale, sateen, and stonewashed linen. Oversized for the signature loose drape, front-zip closure.
Frequently asked questions
How do I choose a duvet cover?
Match it to your duvet insert size (covers run larger than mattresses), choose a natural breathable fabric like organic cotton or linen, and check for a secure closure plus inner corner ties. Buy 2" larger than the insert for a relaxed drape or exact-size for a crisp look.
Should a duvet cover be the same size as the duvet?
Roughly — within about 2". A cover exactly the insert's size gives a crisp, filled look; 2" larger gives a relaxed drape. Too large and the insert slides and bunches; too small and it scrunches and won't fit properly.
What size duvet cover do I need?
Buy by your duvet insert or by your mattress label (twin, queen, king, etc.). A queen cover is about 90" × 90"; a king about 104" × 92". Covers are larger than the mattress so the duvet drapes over the sides.
What is the best material for a duvet cover?
Natural, breathable fibres — organic cotton percale (crisp and cool), organic cotton sateen (silky and smooth), or linen (most breathable, softens with age). GOTS or OEKO-TEX certification guarantees no irritant chemicals.
Can I put a comforter in a duvet cover?
Yes. A comforter fits inside a duvet cover just like an insert — it keeps the comforter clean, adds a layer of warmth, and lets you restyle the bed by changing the cover instead of buying new bedding.
How much bigger should a duvet cover be than the mattress?
Aim for a cover at least 12" longer and 16" wider than your mattress so the duvet drapes over the sides. For extra-deep or pillow-top mattresses, size up slightly.
Do duvet covers shrink?
Yes — expect 3–5% shrinkage on the first wash, especially with natural fibres. Factor that in when sizing, and wash cool and dry low to minimise it. Pre-washed/stonewashed covers shrink far less.
How do I keep the duvet from sliding inside the cover?
Use a cover with inner corner ties and tie them to the loops on your insert's corners. Combined with a secure zip or button closure, this stops the duvet bunching or shifting.
Zip, button or tie closure — which is best?
Zip and button closures are the easiest and most secure for everyday use. Tie closures give a relaxed, romantic look but take longer to fasten. All should be paired with inner corner ties.
Is a duvet cover warm enough on its own?
Usually not — a duvet cover is a shell and needs an insert or comforter inside for warmth. On very warm nights some people sleep under just the cover, but for most of the year you'll want a fill inside.
Related reading
Final thoughts on how to choose a duvet cover
The best duvet covers are those that feature a material, size, and style you like. Always start by determining what size duvet cover you’ll need to ensure a perfect fit based on the size of your mattress. Then, consider other factors including the closure type, ease of care, and color or pattern that suits your needs the best. Or & Zon is the best place to buy duvet covers. Be sure to shop our selection of beautiful duvet covers made of soft, sustainable materials including our popular stonewashed linen aand other beautiful options, including our organic sateen duvet covers and much more. Every product we make is designed to help you transform your bedroom and your sleeping experience.
Related: Best organic duvet covers
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