How To Wash Mattress Topper?

Washing a mattress topper involves several steps: check the care label, vacuum the topper, pretreat stains, wash with a gentle detergent in cool or warm water, rinse thoroughly, and allow it to air dry completely.

Understanding Your Mattress Topper

Before attempting to clean your mattress topper, it’s crucial to know what type it is, as different materials require different cleaning methods. Common types of mattress toppers include memory foam, polyfoam, latex, down, cotton, wool, and synthetic fibers.

Foam Toppers (Memory Foam, Polyfoam, Latex)

Foam toppers are popular for their cushioning and support but they require special care, as they can’t be treated like fabric toppers. Machine washing is generally a no-go for these sensitive materials—they can disintegrate under the mechanical stress and heat of the washing process.

Down, Cotton, Wool, and Synthetic Toppers

These fabric-based toppers are often more accommodating when it comes to washing but still require careful attention to manufacturers’ instructions to prevent shrinkage or damage.

Step-by-Step Guide to Washing Your Mattress Topper

Step 1: Check the Care Label

First, look for the care tag on your topper. This label is a treasure trove of information and will often tell you whether your topper is machine washable or if it should be spot-cleaned or dry cleaned instead.

Step 2: Vacuum the Topper

Whether you’re putting it in the wash or not, vacuuming your topper is a great way to remove dust, dead skin cells, and other particles. Use an upholstery attachment on your vacuum cleaner and be gentle to avoid damaging the topper.

Step 3: Pretreat Stains

For spots and stains, use a mild detergent or a solution recommended by the topper’s manufacturer. Apply it directly to stains and gently blot or rub as required. For biological stains, an enzyme-based cleaner can be particularly effective.

Step 4: Washing Your Mattress Topper

If your topper is machine washable, wash it in a large-capacity front-loading washer on a gentle cycle with a mild detergent. For top-loaders, skip the agitator if possible or take it to a laundromat to use a large-capacity machine.

For a foam topper, submerge it in a bathtub filled with cold or warm water mixed with a small amount of detergent. Gently squeeze the solution through the topper without wringing or twisting, which can damage the foam.

Step 5: Rinsing Your Topper

For machine-washable toppers, use an extra rinse cycle to remove all traces of detergent. For foam toppers, drain the soapy water and refill the tub with fresh water to rinse. Repeat the rinsing process until the water runs clear and there are no more suds in the foam.

Step 6: Drying Your Mattress Topper

The most critical part of washing your topper is ensuring it’s completely dry. For machine-washable toppers, use a low heat setting or no heat air-dry cycle. Foam toppers should not be put in the dryer; instead, gently press out excess water—don’t wring or twist—and air dry flat on a clean surface. You can also hang it outside to dry, but don’t expose it to direct sunlight for extended periods, as it can degrade some materials.

Consider using a fan or a dehumidifier in the room to speed up the drying process. Keep in mind that foam toppers may take up to 24 hours to dry fully.

Additional Tips and Considerations

Maintenance Between Washes

To reduce the frequency with which you must wash your topper, use a mattress protector. Regular vacuuming also helps keep allergens and dust at bay.

Addressing Odors

If odor is an issue, you can sprinkle baking soda on the topper, let it sit for a few hours, then vacuum it off. This mild, natural deodorizer can work wonders.

Professional Cleaning Options

When in doubt, or if the topper is not machine washable, consider professional cleaning. This is especially true for down and other delicate materials.

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Storage Tips

If you need to store your mattress topper, make sure it’s dry to avoid mold and mildew. Roll it instead of folding to prevent creases and keep it in a breathable storage bag in a cool, dry place.

Finishing Thoughts

Washing a mattress topper doesn’t have to be a daunting task. By understanding the needs of your specific topper type and following these detailed steps, you can ensure that it remains fresh, clean, and comfortable. Remember to always adhere to the care instructions provided by the manufacturer and never skip the drying process. With proper care, your mattress topper can provide you with a clean and healthy sleep environment for a long time.


  • Aiden Lawrence

    I'm Aiden Lawrence, a certified Sleep Science Coach and senior editor of GoodSleepHub, proud parent of two amazing kids, and a pet lover with a cat and a dog. Join me as we explore the world of sweet dreams and comfy pillows. Let's make bedtime the highlight of your day!

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