Written by Andrea Reviewed by Daniel

Yes, You Can Wash a Weighted Blanket But Not Like This

If you’ve been staring at your weighted blanket wondering whether tossing it into the washing machine will ruin it forever, you’re not alone. These cosy companions that help us drift off to sleep can quickly become our favourite bedding essential, but they can also become a proper cleaning nightmare if you don’t know what you’re doing.

The short answer? Yes, you absolutely can wash most weighted blankets, but definitely not the way you’d wash your regular duvet. These aren’t your ordinary blankets, and treating them like one could damage your washing machine, ruin the blanket, or leave you with a soggy mess that takes days to dry properly.

Whether you’re using your weighted blanket nightly for better sleep or pulling it out during particularly stressful periods, keeping it clean is essential for both hygiene and longevity. Let’s explore exactly how to care for your weighted blanket without turning laundry day into a disaster.

Why Weighted Blankets Need Special Care

Before we get into the washing specifics, it’s important to understand why these blankets require a different approach. Unlike regular bedding, weighted blankets contain filling materials like glass beads, plastic pellets, or sometimes even rice or steel shot beads. These fillers can weigh anywhere from 5 to 35 pounds, making them significantly heavier than standard blankets.

This extra weight puts tremendous strain on washing machine drums and motors. Many home washing machines simply aren’t designed to handle such heavy loads when wet, which can lead to expensive repairs or complete machine failure. Additionally, the filling can shift during washing, creating uneven weight distribution that affects the blanket’s effectiveness.

The fabric construction is also different. Most weighted blankets feature quilted compartments designed to keep the filling evenly distributed. Aggressive washing cycles can damage these compartments, causing the filling to clump together and creating an uncomfortable, lumpy blanket.

Check The Care Label First

This might sound obvious, but you’d be surprised how many people skip this crucial step! The care label is your roadmap to proper cleaning, and ignoring it could void any warranty you might have.

Look for these key indicators:

Machine washable symbols
Temperature recommendations (usually cold water only)
Drying instructions
Specific warnings about bleach or fabric softener

Some weighted blankets come with removable covers, similar to duvet covers. If yours has one, you might only need to wash the cover regularly while spot cleaning the inner blanket. This approach extends the life of your weighted blanket significantly and makes maintenance much easier.

If your blanket is filled with organic materials like rice, beans, or grains, it’s almost certainly hand wash or dry clean only. These materials can spoil or create unpleasant odours if they get too wet.

How To Wash A Weighted Blanket Safely

Check Your Machine’s Weight Capacity

Most domestic washing machines can handle 6 to 8 kg when dry, but weighted blankets become much heavier when wet. As a general rule, if your weighted blanket is over 20 pounds (about 9 kg), it’s too heavy for most home machines.

You’ll need to:

Check your washing machine manual for maximum load capacity
Consider the blanket’s weight when completely saturated with water
Factor in that the weight isn’t evenly distributed like regular laundry

If your blanket is too heavy for your machine, don’t risk it. A trip to the launderette with commercial washers is much cheaper than replacing a broken washing machine.

Prep Your Blanket Properly

Spot treat any stains before washing. Mix cold water with a small amount of gentle detergent and work it into the stain with a soft cloth. Avoid scrubbing harshly, as this can damage the fabric or push the stain deeper.

Remove any removable covers and wash them separately. Check all seams and stitching for damage that washing might worsen. Small tears can become large holes during the wash cycle, potentially spilling filling throughout your machine.

Choose The Right Wash Settings

Always use cold water. Hot water can:

Shrink the fabric
Damage certain filling materials
Set stains permanently
Cause colours to fade or bleed

Select a gentle or delicate cycle with the lowest spin speed available. High spin speeds can damage the internal structure of the blanket and put unnecessary stress on your washing machine.

Use only mild, liquid detergent. Avoid:

Fabric softener (can coat the filling and reduce the blanket’s breathability)
Bleach or whitening agents
Powdered detergents (can leave residue)

The Drying Dilemma

This is where many people go wrong. Never hang a weighted blanket to dry. The weight will cause the filling to shift to the bottom, creating permanent lumps and uneven distribution.

Air Drying Method

Lay the blanket flat on a clean, even surface. This might mean using your bed, a large table, or even a clean tarpaulin on the floor. Ensure good air circulation around the blanket by:

Using fans to improve airflow
Flipping the blanket every few hours
Ensuring the surface underneath allows air to circulate

Expect this to take 24 to 48 hours, depending on the blanket’s thickness and your home’s humidity levels.

Tumble Dryer Considerations

Some weighted blankets can tolerate low heat tumble drying, but check the care label carefully. If your blanket is suitable for machine drying:

Use the lowest heat setting available
Add clean tennis balls or dryer balls to help redistribute the filling
Stop the cycle every 30 minutes to shake out the blanket and prevent clumping
Expect multiple cycles to fully dry the blanket

Never use high heat, as this can melt synthetic fillings, shrink the fabric, or damage the internal compartments.

Hand Washing Your Weighted Blanket

For blankets that can’t go in the machine, hand washing in your bathtub is the safest option.

The Bathtub Method

Fill your bath with cool to lukewarm water and add a small amount of gentle detergent. Submerge the blanket completely and gently agitate it with your hands. This isn’t a quick process: you’ll need to work the soapy water through the fabric thoroughly.

Allow the blanket to soak for 15 to 20 minutes, then drain the soapy water. Refill the tub with clean water for rinsing. You might need to rinse several times to remove all soap residue.

The trickiest part is removing excess water without damaging the blanket. Never wring or twist the fabric. Instead, gently press the water out, working from one end to the other. You might need assistance lifting the wet blanket safely.

How Often Should You Wash Your Weighted Blanket?

If you’re using your weighted blanket every night, aim to wash it monthly. However, frequency depends on several factors:

Whether you use a removable cover (wash the cover weekly, inner blanket monthly)
Your skin sensitivity and allergies
Whether you eat or drink whilst using the blanket
If you have pets that share the blanket
How much you perspire during sleep

Spot clean spills immediately to prevent stains from setting. Keep a gentle stain remover handy for quick treatment of accidents.

Common Mistakes That Ruin Weighted Blankets

Washing Too Frequently

Over washing can break down the fabric and damage the internal structure. Unless there’s a specific need (spills, odours, or illness), monthly washing is sufficient for most users.

Using The Wrong Detergent

Harsh detergents can degrade the fabric and affect the blanket’s softness. Biological detergents with enzymes can be too aggressive for some weighted blanket materials.

Ignoring Weight Limits

This is the most expensive mistake you can make. Forcing an oversized blanket into an undersized machine often results in:

Broken washing machine motors
Damaged drum bearings
Torn blankets
Voided warranties on both the blanket and machine

Improper Drying Techniques

Hanging wet weighted blankets causes permanent damage. The filling shifts irreversibly, creating an uncomfortable and ineffective blanket.

When To Seek Professional Cleaning

Sometimes, professional cleaning is worth the investment:

Very large or heavy blankets (over 25 pounds)
Valuable or specialty blankets with unique filling materials
Stubborn stains or odours that home cleaning can’t address
When you lack proper drying space for air drying

Professional cleaners have industrial equipment designed for heavy items and experience with specialty bedding. The cost is often less than replacing a damaged blanket or broken washing machine.

Extending Your Weighted Blanket’s Life

Use A Removable Cover

This single investment can triple your blanket’s lifespan. Covers protect against spills, body oils, and general wear while being much easier to wash regularly.

Rotate Usage

If possible, alternate between two lighter blankets rather than using one heavy blanket constantly. This reduces wear and gives each blanket time to air out between uses.

Store Properly

When not in use, store your weighted blanket flat or loosely folded. Avoid cramming it into tight spaces where the filling might shift or compress permanently.

Troubleshooting Common Issues

Lumpy Blanket After Washing

If your blanket has developed lumps, try:

Gently massaging the clumped areas whilst the blanket is slightly damp
Using a tumble dryer on air fluff setting with tennis balls
Laying flat and working the filling back into position by hand

Persistent Odours

For lingering smells:

Add white vinegar to the rinse cycle (half a cup for large blankets)
Ensure thorough drying, as dampness causes musty odours
Consider professional cleaning for severe odour issues

Fabric Damage

Small tears can be repaired before they worsen:

Use fabric glue for tiny holes
Hand stitch small tears with matching thread
Consider professional repair for larger damage

Your Weighted Blanket Care Success

Caring for your weighted blanket properly isn’t complicated once you understand the basics. The key is respecting the blanket’s weight and construction while maintaining regular cleaning habits that keep it fresh and hygienic.

Want to help someone else avoid a laundry disaster? Share this guide with anyone who’s wondering about their weighted blanket care routine. Sometimes a simple share can save someone from an expensive mistake!

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