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How to wash a weighted blanket, step by step

By the Life in Good Form editors. Updated 2026-10-12.

We research products from makers' specs and health sources; we do not run hands-on tests. Links to Amazon may earn us a commission at no cost to you. How this works.

Quick answerCheck the care label first, because fill and fabric decide the method. If your blanket has a removable cover, wash just the cover most of the time. If the whole blanket is machine washable, wash it alone on a gentle cycle in cold water with a mild detergent, no bleach or fabric softener, and make sure your washer can handle the wet weight. Air dry it flat, or tumble dry on low only if the label allows, and make sure it is fully dry before use.
Our picks at a glance
  • Removable duvet cover sized to your blanket. Best for: Anyone whose weighted blanket has ties or loops for a cover. See options on Amazon
  • Mild, bleach-free liquid detergent. Best for: Machine or hand washing the blanket itself. See options on Amazon
  • Machine-washable cotton weighted blanket. Best for: People who want to wash the whole blanket at home. See options on Amazon
  • Large drying rack or mesh flat dryer. Best for: Air drying a heavy blanket evenly. See options on Amazon

Compare the picks and what to watch out for

First, figure out what kind of blanket you have

The Sleep Foundation stresses that care depends on fill type and fabric, so start with the tag or the maker's website. Then sort your blanket into one of these groups:

Blanket typeUsual approachMaker example
Removable cover over a weighted insertWash the cover often; wash the insert rarely and as the label saysGravity: machine wash the cover cold; its product details say hand wash and air dry the inner blanket
One-piece machine-washable blanketWhole blanket in the washer, cold and gentleBaloo: cold water, gentle cycle, one blanket at a time, tumble dry low
Labeled dry clean onlyProfessional cleaning or an at-home dry cleaning kitPer the Sleep Foundation

If a label and a website disagree, follow the more cautious instruction.

Washing the whole blanket in a machine

  1. Check your washer's capacity. A weighted blanket gets heavier when wet. Baloo says to check capacity first and recommends a commercial washer for its king size; the Sleep Foundation says a laundromat machine may be needed depending on your washer's weight limit.
  2. Shake it out and check seams. Look for open stitching or leaking beads before washing, so you do not lose fill or clog the drain.
  3. Wash it alone. Baloo specifies one blanket at a time.
  4. Use cold water and a gentle cycle. The Sleep Foundation says to use cold or warm water, noting many weighted blankets cannot take hot water.
  5. Use a mild detergent without bleach, and skip fabric softener. Baloo also says no bleach, no dry cleaning and no ironing for its blanket.
  6. Rinse thoroughly so no detergent is left in the fabric.

Drying without clumping

The Sleep Foundation says air drying is generally best: lay the blanket flat and shake it now and then so the fill spreads evenly. If the label allows a dryer, use a low or medium setting and take the blanket out as soon as it is dry. Baloo, whose blanket is dryer safe, says to dry on low heat and check after about 20 minutes because it dries quickly.

Whatever the method, make sure the blanket is completely dry inside before you use or store it. A damp core can turn musty.

Washing by hand or spot cleaning

For a blanket that cannot go in a washer, the Sleep Foundation describes hand washing in a bathtub or large sink: lukewarm or cold water, a gentle detergent, a slow swish, then a thorough rinse and flat drying. For small stains, treat them early with a gentle soap or stain remover and cold or warm water, working it in with your fingers or a soft brush or sponge, then rinse.

Spot cleaning between full washes keeps the blanket fresh and reduces wear.

How often to wash it

The Sleep Foundation notes that frequent washing can affect feel and durability, and that a removable, washable cover can help a blanket last. It suggests replacing a weighted blanket roughly every 5 years. If yours has no cover, see our guide to a weighted blanket cover.

What to look for when you buy

Removable duvet cover sized to your blanket

Best for: Anyone whose weighted blanket has ties or loops for a cover

The Sleep Foundation says washing just the cover is often enough and that a washable cover can help the blanket last longer.

Watch out: Measure your blanket; a loose cover lets the insert shift.

See options on Amazon

Mild, bleach-free liquid detergent

Best for: Machine or hand washing the blanket itself

The Sleep Foundation recommends a mild detergent without bleach and no fabric softener for weighted blankets.

Watch out: Use a small amount; extra suds are hard to rinse from a dense blanket.

See options on Amazon

Machine-washable cotton weighted blanket

Best for: People who want to wash the whole blanket at home

Some makers design the whole blanket for the washer. Baloo's cotton blanket, for example, is listed as machine washable and dryer safe on low heat.

Watch out: Larger sizes may need a commercial washer.

See options on Amazon

Large drying rack or mesh flat dryer

Best for: Air drying a heavy blanket evenly

Laying the blanket flat and shaking it occasionally helps the fill dry evenly, as the Sleep Foundation advises.

Watch out: Check the rack's weight limit against your wet blanket.

See options on Amazon
When to talk to a doctor: Inspect seams after every wash and keep a blanket with leaking beads away from young children, who can choke on loose fill. Weighted blankets are not safe for babies, and anyone using one must be able to lift it off on their own; ask a doctor first if you have a breathing condition or sleep apnea.

Questions people ask

Can you put a weighted blanket in the washing machine?
Many, but not all. Check the label; if it is machine washable, use cold water and a gentle cycle and make sure your washer can handle the wet weight.
Can you put a weighted blanket in the dryer?
Only if the label allows it. Use low heat, remove it promptly, and make sure it is fully dry. Air drying flat is generally best.
How do you clean a weighted blanket with glass beads?
Follow the maker's label. Glass bead blankets are often washable on cold and gentle, but some, like Gravity's inner blanket, are listed as hand wash only.
How often should you wash a weighted blanket?
About every few weeks with nightly use, or three to four times a year for occasional use, according to the Sleep Foundation.
Can I wash a 20 lb weighted blanket at home?
Possibly, if your washer's capacity allows for the extra wet weight. If not, use a commercial machine at a laundromat.

Sources

Sources checked 2026-10-12.