How to Wash a Weighted Blanket (Beads, Pellets, Covers)

The easiest way to keep a weighted blanket clean is to wash the removable cover regularly and the weighted insert only a few times a year. When the insert does need washing, follow its care label: blankets filled with glass beads or plastic pellets can usually go in a machine on a cold, gentle cycle with mild detergent, if the blanket’s weight is within your washer’s capacity. Heavy blankets belong in a commercial washer or the bathtub. Plastic pellets should be dried on low or no heat, because high heat can melt or deform them.

A weighted blanket gets much heavier when wet, which is what makes washing it different from a normal comforter. Too much weight in one spot can unbalance or strain a home washer, and a soggy blanket hung over a rail can stretch its seams.

Start with the care label and the fill

Look for the label on the insert, not just the cover. It should say whether the insert is machine washable, the water temperature, and how to dry it. Our guide to laundry care symbols decodes the icons. The fill type matters too:

Fill	Typical care	Drying
Glass beads	Often machine washable, cold and gentle	Low heat if the label allows, or air dry flat
Plastic poly pellets	Often machine washable, cold and gentle	Air dry flat or lowest heat; high heat can melt pellets
Steel shot or very heavy fill	Commercial machine or professional cleaning	As label directs
Natural fills (rice, beans, sand) or knit “chunky” blankets	Spot clean only, unless the label says otherwise	Air dry

Is your washer big enough?

Check two numbers: the blanket’s weight (usually on the label or product listing) and your washer’s maximum load in the manual. A wet blanket weighs much more than a dry one. Laundry and cleaning guides often suggest that blankets of about 20 pounds and up go to a commercial machine at a laundromat, but the label and your washer’s manual are the real limit. Signs a blanket is too heavy for your machine: it cannot move freely, the washer goes off balance and stops, or the spin cycle shakes violently.

What you need

Mild liquid detergent (no chlorine bleach or fabric softener)
A large-capacity washer, a laundromat machine or a clean bathtub
Space to dry the blanket flat, such as a drying rack, clean floor with towels, or two chairs and a rack
Stain remover suitable for the fabric, tested on a hidden spot

How to wash the cover

Unfasten the ties or loops and remove the insert.
Close zippers so they do not snag.
Wash as the cover’s label says. Many are cotton or minky (soft polyester) and wash on cold or warm with mild detergent. Minky often does best without fabric softener and on low heat.
Dry fully before putting the insert back.

Treat the cover like a duvet cover and wash it every one to two weeks if it is in daily use. See how often to wash sheets and bedding.

How to machine wash a weighted insert

Spot-treat stains first with a little detergent or a fabric-safe stain remover.
Check seams and pockets for holes. Repair them first, since loose beads can clog a washer’s pump.
Load the blanket alone, spreading it evenly around the drum.
Use cold water and a gentle or delicate cycle with a small amount of mild detergent. Skip bleach and softener.
Add an extra rinse if possible.
Check the drum after the cycle for any escaped beads before the next load.

How to wash a weighted blanket in the bathtub

For blankets too heavy for your washer, or if you prefer a gentler approach:

Fill the tub with cool water and a small amount of mild detergent, mixed in.
Submerge the blanket and gently press and swish it for several minutes. Let it soak briefly.
Drain and refill with clean water; press out the soap. Repeat until the water runs clear.
Press out water by pushing down on the blanket or rolling it, rather than wringing or twisting.
Lift carefully. A wet weighted blanket is very heavy; get help so you do not strain your back or slip.

Drying a weighted blanket

Air dry flat is the safest option for most blankets and the main option for plastic pellets. Turn it every few hours so both sides dry.
Avoid hanging it over a line or rail, which can pull the fill to one side and strain the seams.
Use a dryer only if the label allows, on low heat, and make sure the dryer’s capacity can handle the weight.
Dry completely before reuse or storage to avoid a musty smell or mildew.

Detergent and safety notes

Use detergent as the label directs, keep it in its original container away from children and pets, and never mix cleaning products. If someone swallows, inhales or gets a cleaning product in the eyes, call Poison Control at 1-800-222-1222 (US) or emergency services.

Follow the blanket maker’s age and weight guidance for users, and do not use a weighted blanket on a baby. If beads leak from a torn pocket, collect them promptly, since small beads are a choking hazard for young children and pets.

The same gentle, low-sudsing approach applies to other bulky bedding. See our guide on washing a down comforter.

Bottom line

Wash the cover often and the insert rarely. For the insert, read the label, check the blanket’s weight against your washer’s capacity, and use a cold, gentle cycle or the bathtub. Dry it flat or on low heat, and never put plastic pellets through a hot dryer.

FAQ

How often should I wash a weighted blanket?

Wash the cover every one to two weeks in regular use. The insert usually needs washing only a few times a year or after spills.

Can I put a weighted blanket in the dryer?

Only if the label allows it, on low heat, and if the dryer can handle the weight. Plastic pellets can melt under high heat, so air drying is safer.

What if my weighted blanket has no removable cover?

Spot clean between washes and follow the label for full washes. A separate duvet-style cover can be added to protect it.

Can I use fabric softener on a weighted blanket?

Most care guidance says to skip it. It can leave residue on the fabric and the fill.