How to Wash a Weighted Blanket Safely (And Keep It Soft!)

Weighted blankets have become a must-have for better sleep, reduced anxiety, and that cozy, wrapped-up feeling we all crave. But here's the thing: after weeks of nightly use, your weighted blanket needs a good wash. And let's face it—you don’t want to ruin it in the process.

The question is, how do you clean something that's filled with weighted materials without messing it up?

If you're like most people, you're worried about things like:

• • • Can I throw it in the washer?
    • What if it damages the blanket?
    • What detergents should I use?
    • What if the weight shifts or clumps?

In this guide, we’ll walk you through the safe, step-by-step process to wash a weighted blanket without damaging the fabric or the filler. For everything that happens before, around, and after the wash itself — drying, the most common mistakes, the best detergents and longer-term maintenance — we have dedicated guides linked along the way.

Step-by-Step: How to Wash a Weighted Blanket

When it comes to washing a weighted blanket, it’s all about the fabric and the filler. That will determine whether you can toss it in the machine or if you’ll need to go the extra mile with hand washing.

Here’s a breakdown of the most common types of weighted blankets and how to wash them:

1. Can You Machine Wash a Weighted Blanket?

In most cases, yes. But here’s the catch: not all blankets are the same.

Rule of thumb: Check the care label first. If your blanket is under 20 pounds and made of machine-washable materials like cotton, you’re good to go.

• • • Use cold or warm water. Hot water can cause the fabric to shrink or weaken.
    • Go for a gentle cycle. Weighted blankets need TLC; a rough cycle can damage the blanket's structure.
    • Bleach-free and mild detergent only. Skip fabric softeners, too — they can mess with the texture. For more detailed advice on choosing the right product for different materials, check out the guidelines from the American Cleaning Institute.

2. Hand Wash for Delicate Materials

If your weighted blanket is made of materials like wool or is over 20 pounds, it’s probably safer to hand wash it.

Here’s how to do it:

• • • Fill a tub or basin with cold water.
    • Add a small amount of gentle detergent.
    • Submerge the blanket and swirl it around—don’t scrub or twist it.
    • Let it soak for about 15-20 minutes.
    • Drain the tub and rinse the blanket with clean, cold water.
    • Gently press out excess water without wringing it.

This method takes more time but helps keep your blanket in top shape for years to come.

Once your blanket is washed, the next critical step is drying it correctly — see our complete How to Dry a Weighted Blanket guide. Want to make sure you’re not making any silent errors? Read Common Mistakes When Washing Weighted Blankets. And if you’re still picking the right cleaning product, our Best Detergents for Washing Weighted Blankets breaks down the safest options. Not sure if you have the right size to begin with? Our Weighted Blanket Size Chart helps you confirm dimensions before washing — fill weight and fabric care change with size.

Weighted Blanket Cleaning FAQs: Your Top Questions Answered

Can You Wash a Weighted Blanket With Other Items?

Nope. Always wash your weighted blanket alone. The extra weight and bulk need room to move around in the washer. Plus, other items in the load could cause uneven distribution of the blanket's filling.

How Often Should You Wash a Weighted Blanket?

This depends on how often you use it and whether you use a duvet cover. If you have a cover, washing it once a month should suffice. Without one, aim for every 4-6 weeks.

What if the Blanket Smells Musty After Washing?

This usually happens if the blanket didn’t dry properly. Give it another air-dry session, ensuring it’s laid flat and turned periodically. Our drying guide covers this in detail.