Duvet Cover Sizes: Twin, Queen, King & the Rare Emperor (Full Chart)

Buying a duvet cover should be simple, but the sizing trips almost everyone up. People match the cover to their bed, when it actually needs to match the duvet or comforter going inside it. Get that one idea right and the rest is easy. This guide lays out every one of the duvet cover sizes with exact measurements, and shows you how to pick the one that fits.

How duvet cover sizing works

A duvet cover is a case. It slips over your duvet or comforter the way a pillowcase slips over a pillow. So the number that matters is the size of the insert, not the size of your bed. If you have a Queen comforter, you want a Queen duvet cover, even if your mattress is technically a different size. The good news is that comforter and duvet sizes follow the same names as beds, so once you know your insert, the label does the work. When people end up with a cover that billows or bunches, it is almost always because they matched the mattress instead of the insert. Measure your duvet or comforter across its width and length if you are unsure, then match it to the nearest size below rather than guessing from the bed frame.

Duvet cover sizes, measured

Here is the full duvet cover size chart. Each set is three pieces: one duvet cover with a zipper closure, plus two matching pillowcases.

The zipper closure keeps the insert from slipping out, and it makes the cover easy to take off at laundry time. Pillowcases scale with the set, moving from 20 x 30 up to 20 x 40 on the King.

Why Full and Queen share a size

You will notice Full and Queen are listed together at 88 x 90 inches, and King and Cal King share 92 x 104. That is on purpose. A duvet cover does not tuck in the way a fitted sheet does, so the small differences between those bed sizes disappear once the cover is draping over the top. One Full/Queen duvet cover works comfortably for both a Full and a Queen bed. The same goes for the King and Cal King pairing. It is one less decision to agonize over.

Bigger than King? Meet Emperor

If your bed is larger than a standard King, most brands leave you stuck. Comfort Beddings offers a rare Emperor duvet cover size, cut larger than King and Cal King for oversized beds and extra drape. It is available on our pinch pleat duvet cover range, so you get the oversized fit and a tailored texture in one. If you are also shopping the comforter to go inside, our oversized comforter sizes guide covers the even larger Super King and Palatial King options.

Because oversized covers are cut so much bigger, it is worth measuring your bed and insert carefully before ordering one, so the extra fabric lands as a full, even drape rather than pooling on the floor.

Our Pick

Pinch Pleat Duvet Cover, Twin to Emperor

100% Egyptian cotton, 3 piece set, in every size including the rare oversized Emperor. From $129.99.

Shop the set

Getting the fit just right

• Match the insert, then leave a little room. A cover a couple of inches larger than the insert is easier to fill and looks fuller.
• Use the corner ties. Loop them through the insert's corner tabs so it cannot shift or bunch inside overnight.
• When unsure, size up. A slightly generous cover drapes nicely, while a tight one strains at the zipper and never sits flat.

New to filling a cover? Our how to put on a duvet cover guide walks through the quickest method, and what is a duvet cover covers the basics if you are new to them.

A quick word on fabric and care

Size gets you the fit, but the fabric decides how the cover feels and lasts. These covers are 100% Egyptian cotton, woven in a percale and sateen finish, and offered in 600 and 1000 thread count. The 600 is crisp and breathable, the 1000 denser and more plush, and both soften with every wash. To keep whatever size you choose looking its best, machine wash cold or warm on a gentle cycle, skip the fabric softener so the weave stays breathable, and tumble dry low. Take the cover off the insert before washing, close the zipper first so it does not snag, and remove it slightly damp to cut down on wrinkles. Cared for this way, a good Egyptian cotton duvet cover holds its shape and color for years, which matters more the larger the size you buy.

Common questions

Should a duvet cover match my bed or my duvet?

Your duvet or comforter. The cover is a case for the insert, so match the duvet cover sizes to the insert, not the mattress.

What size duvet cover for a Queen bed?

A Full/Queen duvet cover, which is 88 x 90 inches. The same size fits both Full and Queen beds.

Is there a duvet cover bigger than King?

Yes. The Emperor duvet cover is cut larger than King and Cal King for oversized beds, available on the pinch pleat range.

Do duvet cover sets include pillowcases?

Yes. Every set is three pieces: one duvet cover plus two pillowcases sized to match.