Most electric heated blankets can be machine washed on a gentle or delicate cycle with cold water and a small amount of mild detergent. Learning how to clean a heated blanket safely involves a few key steps: disconnect the controller and any cords completely, avoid wringing or twisting the fabric, and lay flat or hang to dry. Never dry clean or iron a heated blanket, as it can damage the internal wiring.

Heated blankets are more durable than many people assume – most major brands including Sunbeam, Biddeford, and Beautyrest label their blankets as machine washable. The wiring is designed to withstand gentle machine washing. The risk comes from improper handling – high heat, aggressive cycles, and wringing – not from washing itself.

Step-by-Step: Washing a Heated Blanket

Step 1 – Disconnect everything: Remove the controller cord from the blanket. Make sure no cords or connectors remain attached. Check both ends.

Step 2 – Pre-treat any stains: Apply a small amount of mild detergent or stain remover to spots and gently work it in with your fingers. Let sit for 5 minutes before washing.

Step 3 – Load the machine: Put the blanket in the washer loosely – don’t fold or pack it tightly. A top-loader with no center agitator or a front-loader is gentler on the wiring.

Step 4 – Wash on cold, delicate cycle: Use a small amount of mild detergent (half the normal amount). No bleach, no fabric softener. Fabric softener can coat the heating elements and affect performance.

Step 5 – Short rinse only: Some manufacturers recommend stopping after the wash cycle and doing a brief spin only – not a full additional rinse cycle. Check your blanket’s specific care tag.

Step 6 – Dry on low heat or air dry: If machine drying, use the lowest heat setting for 15-20 minutes, then lay flat or hang to finish air drying. Do not leave in the dryer on high heat. The blanket must be completely dry before reconnecting and using.

Can You Put a Heated Blanket in the Dryer?

Yes, but on the lowest setting and only briefly. Most manufacturers recommend starting with 10-15 minutes on low heat in the dryer, then removing and laying flat to finish drying. The key risks with dryer use are high heat damaging the wiring insulation and the blanket getting twisted around the drum.

Care Summary by Brand

Brand Machine Wash? Dryer Safe? Special Notes
Sunbeam Yes – cold, gentle Low only, brief Disconnect controller before washing
Biddeford Yes – cold, delicate Low only Do not dry clean
Beautybird / Perfect Fit Yes – cold, gentle Low only Pre-shrink before first wash
Cozee Home Yes – cold Air dry preferred Check label – some models vary

What Not to Do

  • Never wash with the controller attached
  • Never use hot water – it can damage the wiring insulation
  • Never dry clean – solvents damage the internal heating elements
  • Never iron – the iron’s heat will damage the wiring
  • Never wring or twist the blanket – this can break internal wires
  • Never fold and store while damp – moisture inside the wiring is a safety and mold risk

How Often Should You Wash a Heated Blanket?

Wash a heated blanket 2-3 times per heating season, or whenever it’s visibly dirty or starts to smell. Between washes, spot clean as needed. Store clean and dry at the end of the season.

Final Thoughts

Cleaning a heated blanket is straightforward as long as you follow the basics: cold water, gentle cycle, no cords attached, and low heat or air dry only. The wiring in modern electric blankets is designed to handle gentle machine washing – it’s the heat, wringing, and dry cleaning that cause damage.