How to Clean Pillows: A Step-by-Step Guide for Every Fill Type

Pillows quietly collect sweat, oil, dust mites, and dead skin every night, yet people rarely think to wash them.

Learning how to clean pillows can freshen your sleep, extend the life of your bedding, and ease allergy symptoms. The right method depends on what fills your pillow, whether that is down, memory foam, or polyester.

This post covers washing pillows by hand or machine, removing yellow stains, sanitizing pillows you cannot wash, and knowing exactly when to replace them.

How Often Should You Wash Pillows?

Wash most pillows every three to six months to remove sweat, body oils, dust, and allergens that collect over time. If you sweat heavily, sleep with pets, have allergies, or eat in bed, wash them closer to every three months for better freshness and hygiene.

Always check the care label first, since memory foam, latex, and other specialty pillows may need spot cleaning instead of a full wash.

Can You Put Pillows in the Washing Machine?

Pillows filled with down, feathers, polyester, or cotton can go straight into the washing machine, but memory foam, latex, and buckwheat hull pillows cannot handle the water and spinning.

Before you start, check the care tag sewn into the seam. It usually shows a number inside a small tub symbol for the wash temperature, and a second number below it for the cycle type, with a normal cycle marked lower and a gentle cycle marked higher.

When the tag is missing or worn out, treat the pillow as machine-safe only if it feels firm and springy, not dense or foam-like.

What You’ll Need to Clean Your Pillows

Before you load the washer or fill the sink, gather a few basic supplies. Having everything on hand cuts down on extra trips to the laundry closet mid-wash.

Item	Why You Need It
Mild, unscented detergent	Cleans the pillow without leaving a strong scent or weakening the fill
White vinegar	Cuts odor and helps brighten dull, yellowed fabric
Baking soda	Absorbs smells and lifts light surface stains
Hydrogen peroxide	Breaks down tough yellow stains from sweat and body oil
Stain remover	Pre-treats spots before the pillow goes into the wash
Dryer balls or tennis balls in a sock	Keeps the filling from clumping while it dries
Clean bath towels	Helps balance the load and soaks up extra water

How to Clean Pillows in the Washing Machine

Once you have checked the label and gathered your supplies, washing pillows in the machine is straightforward. Follow these steps in order for the best result.

Step 1: Remove the Pillowcase and Cover

Remove the pillowcase and any zippered protector, and wash them separately with your regular laundry. Washing them apart keeps the load balanced and stops zippers or buttons from snagging the pillow fabric.

Step 2: Load Two Pillows Together

Wash two pillows at a time, even if you only need to clean one. A single pillow spins unevenly and can throw off the machine, while a matched pair keeps everything steady through the whole cycle.

Step 3: Choose a Gentle Cycle and Warm Water

Set the machine to a gentle cycle with warm water, unless the label calls for cold. Warm water lifts body oil and sweat better than cold, while a gentle cycle protects the seams and filling from stress.

Step 4: Add a Small Amount of Detergent

Use about half the detergent you would normally add for a full load. Pillow filling traps soap easily, and too much detergent means a longer, harder rinse later on.

Step 5: Run a Second Rinse Cycle

Set the machine for an extra rinse once the main cycle finishes. This step clears out leftover soap that could stiffen the fabric or irritate your skin once you are back to sleeping on it.

Step 6: Spin on High to Remove Excess Water

Run an extended or high spin cycle before moving the pillow to the dryer. Removing as much water as possible now means a shorter, more even drying time later.

Hand-Washing Pillows That Can’t Go in the Machine

If your pillow’s label says hand wash only, fill a bathtub or large sink with warm water and a tablespoon of mild liquid soap. Submerge the pillow, then knead and press it gently for a few minutes so the water works through the filling.

Drain the soapy water, refill with clean water, and knead again until the suds are gone. Squeeze out as much water as you can without twisting or wringing, since that can bend the filling out of shape and leave lasting lumps.

Cleaning Pillows by Fill Type

Not every pillow behaves the same way in water. Here is a quick breakdown based on what is inside yours.

Fill Type	Machine Safe?	Best Care Method
Down or feather	Yes	Cold water, gentle cycle, low heat, or air dry to protect the feathers
Polyester or down alternative	Yes	Warm water, gentle cycle, small amount of detergent
Cotton	Yes	Cool water, standard gentle cycle
Memory foam	No	Spot clean by hand with a damp cloth and mild detergent, then air dry fully
Latex	No	Hand wash gently or spot clean, never machine wash or dry
Buckwheat hulls	Special care	Empty hulls onto a tray, sun them to remove odor, wash only the outer casing

How to Get Yellow Stains Out of Pillows

Yellow patches usually come from sweat, body oil, or drool soaking into the fabric over time. These three methods handle most stains without harsh chemicals.

Baking Soda and Vinegar Paste

Mix baking soda with a small amount of white vinegar to form a thick paste, then rub it directly onto the yellowed area. Let it sit for about fifteen minutes before rinsing or washing as usual. The fizzing reaction helps lift the stain out of the fabric fibers.

Hydrogen Peroxide and Vinegar Soak

For stains covering a larger area, pour one cup of hydrogen peroxide and half a cup of white vinegar directly into the washing machine drum along with your regular detergent. This combination works as a gentle, natural bleach that brightens fabric without damaging most fill types.

Sun-Drying for a Natural Boost

After washing, lay the pillow flat outside on a dry, sunny day and flip it halfway through. Sunlight naturally fades yellow discoloration and helps reduce bacteria, leaving your pillow fresher without extra product.

How to Sanitize Pillows Without Washing Them

Some pillows, and anyone short on time, do better with a quick refresh than a full wash. Sprinkle baking soda over the surface, let it sit for thirty to sixty minutes, then vacuum it off with the upholstery attachment to lift dust and odor. A light mist of white vinegar followed by a full air dry works well between washes too.

On a dry, breezy day, setting pillows outside in direct sunlight for a few hours also helps reduce bacteria and dust mites without using any water at all.

Common Pillow-Washing Mistakes to Avoid

A few small missteps are behind most disappointing wash results. Watch for these before your next wash day.

Mistake	What Happens
Using too much detergent	Soap gets trapped in the filling and causes clumping or a stiff feel
Washing only one pillow at a time	The load becomes unbalanced and can strain the machine
Using water that’s too hot	Down and other soft fibers weaken or shrink under high heat
Skipping the extra rinse cycle	Leftover detergent stays in the fabric and can irritate skin
Storing pillows before they’re fully dry	Trapped moisture leads to mildew and a musty smell

How to Dry Pillows Completely

Drying is the most important step after washing because moisture trapped inside a pillow can lead to a musty smell, mildew, and damaged filling. Take your time and make sure the pillow is completely dry before putting it back on your bed.

• Use low or no heat: High heat can damage foam, shrink some materials, or weaken synthetic filling. Choose a low-heat dryer setting when the care label allows it.

• Add dryer balls or tennis balls: Place a few dryer balls or tennis balls inside clean socks with the pillow. They help break up clumps and keep the filling evenly distributed.

• Fluff every fifteen minutes: Remove the pillow from the dryer regularly, shake it well, and reshape it. This helps prevent lumps from forming while it dries.

• Check for hidden moisture: Press the center of the pillow and smell it before use. If it feels damp or smells musty, it needs more drying time.

• Air-dry or sun-dry when possible: For down, feather, and foam pillows, air-drying in a well-ventilated area or gentle sunlight is often the safest option. Make sure the inside is fully dry before using it again.

When to Replace Pillows

Even with the best care, pillows do not last forever. Fold your pillow in half and let go. If it springs back into shape, it still has some life left. If it stays folded or feels flat and lumpy, it is time for a new one.

As a general rule, most pillows last one to two years, though higher-quality down and latex pillows can last three to five years with regular washing.

Ongoing odor, staining that will not lift, or lost support are all signs your current pillow has reached the end of its road, no matter how carefully you clean it.

Frequently Asked Questions

Is it safe to wash pillows in the washing machine?

Yes, for most down, feather, polyester, and cotton pillows. Hand wash or spot-clean memory foam, latex, and buckwheat hull pillows instead, since machine agitation can break down the filling.

How do you sanitize pillows that can’t be washed?

Sprinkle baking soda over the surface and vacuum it off after thirty minutes, mist lightly with white vinegar and let it air dry, or set the pillow in direct sunlight for a few hours to reduce bacteria and dust mites.

How often should pillows be washed?

Twice a year for most pillows, or every three to four months if you sweat heavily, eat in bed, or share your bed with pets.

What happens if you don’t wash pillows?

Not washing pillows allows sweat, body oils, dead skin, and dust mites to build up over time. This can cause unpleasant odors, yellow stains, and may trigger allergy symptoms in sensitive sleepers.

When should you toss out pillows?

Fold the pillow in half. If it does not spring back on its own, or if it holds onto odor and stains after washing, replace it. Most pillows need replacing every one to two years.

Final Thoughts

Clean pillows are not just about looks. They support better sleep, fewer allergy flare-ups, and a fresher bedroom overall.

Once you know how to clean pillows correctly, by hand, machine, or simple sanitizing tricks, it becomes a quick seasonal habit rather than a chore.

Check the care label, match your method to the fill type, and dry every pillow completely before use. Do this every few months, and your pillows will stay soft, white, and ready for a restful night.