Wash a duvet or comforter two or three times a year if it sleeps inside a cover, and every one to two months if it doesn't. Those are the intervals in Whirlpool's comforter guide. The cover is a separate, faster job: it touches your skin, so it goes in the wash every week with your sheets. Spills, illness, and pet accidents reset the clock.
Duvet or comforter: does it matter?#
Only in how you use it. A duvet is usually a filled insert that lives inside a removable cover, which takes most of the sweat and skin oil. A comforter is often used on its own, with nothing between it and you except maybe a top sheet. That's why the bare comforter needs washing several times more often.
If you're washing a comforter every month and it's starting to look tired, buy a cover for it. Whirlpool suggests exactly that, and a cover is far easier to wash than a bulky insert.
Can you wash a duvet at home?#
Usually, if two things check out.
The label comes first. Down, feather, polyester (down alternative), and most wool duvets can be machine washed. Silk duvets and some wool ones are dry clean only, and they mean it.
Then check the size of your washer. Whirlpool recommends a large-capacity or commercial machine for comforters, and that's not just upselling. A king-size duvet jammed into a standard drum can't move, so the middle doesn't get rinsed and the load throws itself off balance in the spin. If you have to push it in with both hands, take it to a laundromat with a big front-loader.
How to wash a duvet or comforter#
- Take off the cover. It goes in with your sheets, not with the duvet.
- Check the seams and the shell. A small hole becomes a cloud of feathers in the drum, so stitch it closed first.
- Pretreat any stains on the shell.
- Wash it on its own. IKEA's duvet and pillow care guide says to wash each duvet separately and use about a third of your normal detergent. Too much soap is hard to rinse out of thick filling.
- Choose a bulky, bedding, or delicate cycle and add an extra rinse. Most care labels call for cold or warm water. IKEA's down and feather duvets can take 60°C on a gentle program, which also kills dust mites, but only go that hot if your label says so.
- Use a down-specific detergent for down and feather fillings, since regular detergent can strip the natural oils that keep the clusters fluffy.
How to dry a duvet without lumps#
Drying is where most duvets go wrong. The outside feels dry long before the inside is, and filling that stays damp in the middle clumps, smells, and can grow mold.
- Move it to the dryer as soon as the cycle ends. IKEA says to dry on low or medium heat until the filling is completely dry.
- Add two or three clean tennis balls or wool dryer balls. They keep knocking the filling apart so it doesn't set into clumps.
- Stop the dryer every 30 minutes or so, pull the duvet out, shake it, and break up any lumps with your hands. Turn it before it goes back in.
- Expect it to take a while. A large down duvet often needs several rounds.
- Before you call it done, squeeze the thickest sections, the corners, and the middle. Any coolness or heaviness means it's still wet. Damp down also has a giveaway smell, a bit like wet dog.
Air drying works if your label requires it, but plan for a full day or more. Lay the duvet flat across two drying racks, or over a line with support underneath so the wet filling doesn't drag down to one end, and flip it every few hours.
Mistakes that ruin duvets#
- Washing down too often. IKEA warns that frequent washing wears out the feathers. Between washes, air the duvet instead: hang it over a balcony rail or open window on a dry day.
- Adding fabric softener when the label doesn't call for it. Duvet filling doesn't need softening, and anything you add is one more thing to rinse out.
- Putting it away damp. Store duvets clean and fully dry, in a breathable bag or box, not sealed plastic.
- Using a small dryer on high heat to speed things up. You get a scorched shell and a wet core.
When to replace a duvet instead of washing it#
Washing won't fix filling that has broken down. Replace the duvet when the filling stays in lumps after a proper dry, you can see empty patches with the shell against the light, feathers are poking through everywhere, or a smell comes back within days of washing.
Duvets and dust mite allergies#
The AAAAI's cleaning tips for allergy and asthma say to remove, wash, or cover comforters. In practice that means a washable synthetic duvet you can put through a hot wash, or an allergen-barrier cover over the one you have, plus the weekly hot wash for the duvet cover and sheets described in how often to wash bed sheets.
The same rules mostly apply to pillows, so it's worth doing both on the same day. For lighter layers like throws and knitted bed blankets, see how often to wash blankets. A ChoreLists.com reminder every four months is a simple way to keep the duvet from slipping to once every few years.