King Size Duvets

What size is a king size duvet?

A king duvet is 230 x 220cm. This is perfect for king size mattresses, but also works well for double mattresses, especially if you share a double bed and want to make sure there is plenty of duvet to share! You can find out more about the different duvet sizes in our duvet size guide.

Can you use a king size duvet on a double bed?

Yes! If you like to have plenty of duvet to go round, then a larger king size duvet is the perfect choice for a double bed, especially if you share your bed!

How often should I replace my king size duvet?

Your king size duvet won't last forever. The sleep council recommends replacing duvets every two to five years, but with good care, you can keep your duvet for longer, especially if you keep it clean and air it regularly. A duvet protector is an excellent way to keep your king size duvet at its best for longer. We’d recommend you check your king duvet regularly. It’s time to replace it if you see holes and tears in the casing, a leaking fill, uneven or lumpy fill, a stained case, or an unpleasant odour that washing won't remove. Remember to always use a king size duvet cover with your king size duvet.

How do you wash a king size duvet at home?

Unless you have a professional capacity washing machine, we’d recommend you don’t wash a king size duvet at home. That’s because there’s simply not enough space in even generously sized domestic washing machines. Your duvet won’t get a proper wash and any detergent residues that aren’t rinsed away could damage your lovely king size duvet. What’s more, a wet king size duvet is very heavy and may damage your washing machine. Take your king size washing machine to a launderette or dry cleaners and let them do the dirty work for you. You’ll also be able to take advantage of the professional capacity tumble driers – essential for making sure your king size duvet is dry as a bone. Even a small amount of dampness in the fill can result in clumping – which damages your duvet and reduces its effectiveness.

Because washing a king size duvet isn’t a quick job, it’s best to protect your duvet. Using a duvet protector will prevent spills and stains from reaching your duvet, keeping it cleaner for longer. And of course, always use a king size duvet cover with your king size duvet.

Find out more about caring for king size duvets in our duvet care guide.