Last Updated on October 5, 2026 by Umar Farooq
Of everything on your bed, the duvet cover is the easiest thing to wash and the most likely to ruin the load it is washed in — and both facts come from the same place, which is that a duvet cover is a bag. Fasten it shut before it goes in. That one habit removes the most common bedding laundry complaint there is, which is opening the machine to find every other item balled up inside the cover with a dry patch in the middle.
So this page is not a five-step tutorial on soap. The washing part takes forty seconds to explain. What takes longer is the two things that genuinely go wrong: the swallowing, and the slow mechanical damage done by the hardware holding it closed.
Close it before it goes anywhere near the drum
The Company Store’s care guide puts the instruction and the reason in one row: “Zip or button the duvet cover closed,” because it “helps prevent tangling and reduces stress on the fabric during the wash cycle” (how to wash a duvet cover). That is the single most useful sentence published about this item, and it is the step most people skip because the cover is going to be opened again in an hour anyway.
Do it at the bed, the moment you pull the duvet out. Fastening a damp, inside-out cover at the machine with your hands full is how it ends up going in open. If yours uses a zip, run it all the way to the stop; a zip closed to within two inches still leaves a mouth big enough for a pillowcase.
A duvet cover is a bag, and a bag collects things
The mechanism is worth understanding because it explains behaviour that otherwise looks like a machine fault. A duvet cover has a large opening, a huge internal volume and very little weight. In a tumbling drum, smaller items drift into the opening, work their way to the closed end, and stay there — they are no longer being washed, because they are no longer in contact with moving water. Meanwhile the cover has become one dense, lopsided parcel.
Maytag’s troubleshooting describes the consequence without naming the culprit: “To reduce tangling and twisting, the load items need to tumble freely in the washer. You may need to reduce your load size or reduce your wash time,” and before that, “The wash load must be sorted before starting the washer. Mix different-sized items (such as shirts and pants) for a more balanced load” (clothing is tangled). A stuffed duvet cover fails both of those at once. Nothing tumbles freely inside it, and the load is as unmixed as a load can get.
Here is the position, stated plainly: an open duvet cover is the most destructive single item you can put in a domestic drum. Not because it damages anything by itself, but because it quietly converts a balanced load into one off-centre mass, and the washer then does exactly what it is designed to do — slow the spin, retry, and hand you a load that is still wet. A fastened cover cannot do any of that.
Buttons, zips and poppers do the long-term damage
The second failure is slower and nobody connects it to the duvet cover, because the damage shows up on other garments. A row of coconut buttons, a two-metre metal zip or thirty plastic poppers is a line of hard points travelling at speed through a drum full of wet fabric for an hour. Wet cotton is weaker than dry cotton, so that hour does measurable work — pilling, thinning at the point of contact, and the occasional small tear in something lighter.
Two adjustments fix it. Turn the cover inside out so the fastening band sits against the cover’s own fabric rather than against everything else, and do not wash it with anything delicate. The second one costs nothing because a duvet cover does not need company; a king cover is close to a full load on its own. Metal zips also go through the dryer hot enough to mark, which is a separate argument for taking it out damp.
How to wash a duvet cover, start to remake
Four decisions, and the first one has already been covered.
- Fasten, then turn it inside out. Hardware on the inside, printed or dyed face protected from abrasion. Inside out also means any stain you pre-treated is facing the water directly.
- Cold, gentle, and loose. Cotton and linen covers take cold water without complaint, and colour-printed covers hold their colour far longer for it. Fill the drum no more than two-thirds and resist adding one more thing.
- Half the detergent you would use for towels. A cover is a large area of thin fabric, which means it is easy to clean and easy to leave residue on. Residue is what makes a cover feel stiff rather than soft.
- Out of the dryer damp, onto the bed immediately. The remaining moisture is doing the ironing for you, and a cover put on a duvet while slightly damp dries flat. Leave it to finish in the dryer and you own a creased duvet cover with a warm set in it.
Skip fabric softener entirely. It is a coating, and a coating on the one piece of bedding your face is against all night is the wrong thing on principle; on linen it also kills the texture people buy linen for.
This is the one piece of bedding that can share a drum
Almost every bulky bedding item has to be washed alone. The duvet cover is the exception, and Maytag says so directly: “Remember to remove your duvet cover before washing—duvets should be washed separately per our steps below and duvet covers can be washed with other bedding” (how to wash a comforter).
So a cover, a fitted sheet and two pillowcases is a legitimate load — provided the cover is fastened, nothing in there is delicate, and the drum is not packed. What it should not share a drum with is towels, which shed lint onto smooth bedding, or anything with a hook or an underwire. For the frequency question and the one load a bed handles worst, how often to wash sheets has the sourced answer; the wider question of which bedding items can legally meet in a drum is on the bedding page.
FAQ
How often should a duvet cover be washed?
Every two to four weeks for most people, and weekly if you sleep without a top sheet, since then the cover is doing the top sheet’s job. No health or standards body publishes an interval for duvet covers specifically — the figures circulating are editorial judgement, so treat them as reasonable practice rather than as a rule.
Should you wash a duvet cover inside out?
Yes, for two separate reasons. It puts the buttons or zip against the cover’s own fabric rather than against the rest of the load, and it exposes the inner surface — the side actually in contact with you — directly to the water.
Can you wash a duvet cover with sheets?
Yes, and Maytag states it: duvet covers “can be washed with other bedding.” Fasten the cover first, keep the drum under two-thirds full, and leave towels out of it.
Why does everything end up inside the duvet cover?
Because it is a bag with a large opening, and a tumbling drum will post smaller items into it. They migrate to the sewn end and stop moving, which is why they come out with dry patches. Closing the fastening is the entire fix.
Do you need to iron a duvet cover?
Rarely, if you take it out of the dryer damp and put it straight onto the duvet. The weight of the duvet and the remaining moisture flatten it as it dries. Ironing a dry king cover is thirty minutes of work the dryer would have done free. If you press bed linen by choice anyway, a clamshell press flattens 250 to 450 square inches per closure against an iron’s 45, which is the only honest argument for owning one.
Can a duvet cover go in the dryer on high heat?
It can, and it will shrink slightly, set creases and age the fastening hardware faster. Low heat and an early exit is better in every respect except speed.
The easy one, and the one most likely to wreck a wash
Nothing about the washing itself is difficult. Cold water, gentle cycle, modest detergent dose, out damp — that is a duvet cover handled, and it will outlast two of the duvets it goes over.
The value is entirely in the two habits. Fasten it at the bed, and turn it inside out while you are there. Everything this page describes going wrong — the parcel, the dry patches, the aborted spin, the pilling on a pillowcase — traces back to those ten seconds not happening. The duvet inside it is the hard one, and the reason you only have to deal with that two or three times a year is that the cover took the hit.
