How to Wash and Care for a Wool Comforter

A wool comforter can last for many years, but it asks for a different kind of care than a cotton or polyester one. The good news is that wool is naturally resistant to odors and dust mites, so it rarely needs a full wash. The key is to treat wool gently: heat, sudden temperature changes and agitation can make wool fibers shrink and felt. This guide covers everyday care, spot cleaning, hand washing, drying and storage. It is based on general wool care principles and on the care guidance published by Frankenmuth Woolen Mill, the maker of the wool comforters we carry. Always follow the care label and instructions that come with your own comforter first, because they can differ between makers and products.

Why wool needs gentle handling

Wool fibers have a scaly surface and a natural crimp. When wool is agitated in water, especially if the temperature changes, the fibers can lock together and shrink. This is called felting, and it cannot be reversed. A felted comforter becomes smaller, denser and less comfortable. That is why wool makers generally advise against machine washing, even on a delicate cycle, and against tumble drying.

Everyday care: air it out

For most households, the best routine is simple airing. On a dry, sunny day, hang your comforter outside on a clothesline. Give it a good shake and flip it after a couple of hours so that both sides get fresh air. Bring it indoors before the evening dew starts to settle. Makers of wool bedding often recommend this kind of sunning to freshen and revive wool between washes, and it is a gentle way to remove odors without water. Do this a few times a year, or whenever the comforter seems to need a refresh.

Use a duvet cover

The easiest way to keep a wool comforter clean is to protect it. A cotton duvet cover takes the day-to-day wear, and you can launder the cover as often as you like by following its own care label. A wool comforter in a cover may need a deep clean far less often. Our wool comforters come with a tie kit so you can secure them inside a duvet cover. Browse our cotton duvet covers to find a cover in your size.

Spot cleaning

For small spills or marks, spot clean instead of washing the whole comforter. Use a color-safe spot remover or a mild, wool-safe detergent mixed with lukewarm water. Dab the stain from the outside edge toward the center with a clean cloth, and avoid scrubbing, which can damage the cotton shell and rough up the wool inside. Then let the area dry thoroughly in the air.

How to hand wash a wool comforter

If your comforter needs a deeper clean and the maker allows home washing, a careful hand wash is the usual method. The steps below follow the general guidance given by Frankenmuth Woolen Mill for its comforters:

  1. Fill a clean bathtub or large laundry tub with lukewarm water and add a mild, wool-safe detergent. Avoid bleach, brighteners, enzymes and heavy-duty formulas.
  2. Gently place the comforter in the water and let it soak. Press it down softly so the water works through the fill.
  3. Do not twist, wring or agitate. This is the most important rule.
  4. Keep the temperature steady for the wash and the rinse. A sudden change from warm to cold, or the other way, can cause shrinking.
  5. Drain the tub and press the water out gently with your hands. Do not wring the comforter.
  6. Rinse with water at the same temperature until the water runs clear, pressing out the water each time.

The maker is clear that a washing machine and a dryer should never be used, including a hand-wash cycle, because agitation or even a mild temperature change can shrink wool. The maker also advises against dry cleaning wool bedding.

Drying your wool comforter

Line dry or air dry the comforter flat until it is completely dry. In good conditions this can take a day or two, and in humid weather it can take longer. Do not use a dryer and do not apply direct heat. Make sure the wool is fully dry before you put the comforter back on the bed or store it, because damp wool can develop odors. If you can, turn the comforter over occasionally and fluff it gently by hand as it dries to help the wool keep its loft.

Professional cleaning

If a stain is stubborn or you would rather not wash a large comforter at home, ask the maker whether they offer a cleaning service. Frankenmuth Woolen Mill, for example, offers professional laundering for its own products, with details and turnaround times published on its website. Check the maker's instructions for your product before sending anything. Because our products ship directly from the partner maker, see our FAQ for how to get help with an order.

Storing wool bedding

  • Make sure the comforter is clean and completely dry.
  • Store it in a breathable cotton bag or storage cover, in a cool, dry place.
  • Avoid sealed plastic, which can trap moisture.
  • Air it out when you take it out for the new season.

Common mistakes to avoid

  • Machine washing or tumble drying. Both can cause felting and shrinkage.
  • Hot water. Use lukewarm water and keep it steady.
  • Harsh detergents. Choose a mild, wool-safe detergent.
  • Wringing or twisting. Press water out gently.
  • Storing damp. Always dry fully first.

Keep learning

Our Wool Care Guide summarizes these steps for wool comforters, pillows and mattress toppers. If you are still choosing, read how to choose a wool comforter, or explore our wool comforters and duvet inserts and wool mattress toppers.

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