How to wash weighted blankets in machine?

Answer

Yes, many weighted blankets can be machine washed, but always check the care label first. Key considerations include the blanket's weight, its filling material (glass beads are usually safe), and your washing machine's capacity. Always use a gentle cycle with cold water.

Sleep Foundation
Last Updated:June 4, 2026

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Understanding How to Safely Clean Your Weighted Blanket

Washing a weighted blanket requires careful attention to its specific construction and materials to prevent damage and maintain its therapeutic qualities. Unlike regular blankets, weighted blankets contain fillers, often glass beads or plastic pellets, which add significant heft and can be sensitive to washing methods. The first and most crucial step is to locate and thoroughly read the care label provided by the manufacturer. This label will offer precise instructions regarding machine washability, water temperature, and drying methods, or if professional cleaning is required.

Machine Compatibility and Preparation

Before placing your weighted blanket into a washing machine, assess its weight and your machine's capacity. Most standard home washing machines can safely handle blankets up to 15-20 pounds. For heavier blankets, a commercial-grade washing machine at a laundromat may be necessary, or professional dry cleaning could be the only viable option. Overloading your machine can not only damage the blanket by unevenly distributing the weight of the filling but also lead to costly repairs to your appliance. Once you've confirmed machine compatibility, inspect the blanket for any loose seams or tears that could allow the filling to escape during washing. Mend these imperfections beforehand to avoid a potential mess and damage to your machine.

Washing Cycle and Detergent Choices

When it comes to the washing cycle, opt for a gentle or delicate setting using cold water. Hot water can be detrimental to certain fillers and fabrics, potentially causing shrinkage, color fading, or breakdown of internal components. Choose a mild, gentle detergent that is free from harsh chemicals, bleach, or fabric softeners, as these can degrade the blanket's materials over time and may irritate sensitive skin. If your blanket has a removable cover, it's generally best to wash the cover separately according to its own care instructions. For the inner weighted layer, consider placing it in a large mesh laundry bag to provide an extra layer of protection against tearing or filler leakage during the wash cycle. This also helps contain the blanket and prevents it from wrapping around the agitator.

Drying Methods for Longevity

Proper drying is just as critical as washing. The ideal method for most weighted blankets is air drying. Lay the blanket flat on a clean surface or hang it over several sturdy clotheslines to ensure even drying and prevent moisture from getting trapped, which could lead to mildew. If air drying isn't feasible, you can use a large capacity tumble dryer on a very low heat setting. Avoid high heat at all costs, as it can damage the internal filling, melt plastic pellets, or shrink fabric. To maintain an even distribution of weight, periodically remove the blanket during the drying cycle, fluff it, and redistribute the filling. You can also add a few dryer balls to help circulate air and prevent clumping. Ensure the blanket is completely dry before use or storage to prevent mold and unpleasant odors.

Important Considerations and Exceptions

While many weighted blankets are designed for convenience, several factors can make machine washing impossible or inadvisable. Foremost among these are blankets exceeding a typical home washing machine's weight limit. Most domestic machines are not built to handle the immense weight of larger blankets when wet, potentially causing irreparable damage to the appliance or the blanket itself. If your blanket is over 20 pounds, professional cleaning or commercial laundromat facilities with heavy-duty machines are usually required.

Furthermore, the type of internal filling dictates washability. Blankets filled with organic materials like rice, beans, or sand are strictly not machine washable, as these materials can swell, degrade, or grow mold when exposed to water. Such blankets typically require spot cleaning or professional dry cleaning only. Similarly, blankets with delicate outer fabrics like silk, velvet, or intricate embellishments may be too fragile for machine agitation, regardless of the filling. Always defer to the manufacturer's care instructions for these specialized materials.

Finally, some weighted blankets contain electrical components for heating or massage. These blankets should never be immersed in water or machine washed, as it poses a significant safety hazard and will destroy the electronics. Always check for any wires, battery packs, or control panels before attempting any form of wet cleaning.

Step-by-Step Guide for Machine Washing Your Weighted Blanket

  1. Consult the Care Label and Assess Capacity. Begin by thoroughly checking your weighted blanket's care label for specific washing instructions. Simultaneously, weigh your blanket to ensure it doesn't exceed your washing machine's capacity; most home machines can handle up to 15-20 pounds safely. If your blanket is heavier, plan to use a commercial washing machine or professional cleaning services.

  2. Pre-Treat Stains and Secure the Blanket. Address any visible stains on the blanket before washing by spot cleaning them with a mild detergent and a damp cloth. Also, inspect the blanket for any loose seams, tears, or holes, especially in the compartments holding the weighted filling. Repair these imperfections to prevent the internal beads or pellets from escaping during the wash cycle.

  3. Use a Gentle Cycle with Cold Water and Mild Detergent. Place your weighted blanket (or its inner weighted layer, if the cover is removable) into the washing machine. Select a gentle or delicate cycle and ensure the water temperature is set to cold. Dispense a small amount of mild, bleach-free, and fabric softener-free detergent to clean without damaging the materials or filling.

  4. Balance the Load and Initiate Wash. For optimal washing and to prevent damage to your machine, ensure the blanket is evenly distributed in the drum. If your machine allows, manually adjust the blanket to prevent it from clumping or becoming off-balance, which can stress the machine's mechanics. Start the wash cycle and monitor for any excessive vibrations or noises.

  5. Dry Thoroughly and Evenly. After washing, the best drying method is to air dry the blanket completely. Lay it flat on a clean surface or over multiple sturdy drying racks to ensure airflow and prevent mildew. If using a tumble dryer, select a very low heat setting and add dryer balls to aid in even drying and redistribute the filling regularly. Confirm the blanket is bone-dry before folding or using it.

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