How To Wash & Whiten Yellowed Pillows
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Pillows are one of those things most people forget about until they suddenly notice something horrifying: the pillow that used to be white is now yellow. 😬
It happens slowly. One night of sweating. A little body oil. Hair products. Moisturizer. Dust. Dead skin. Before you know it, your once-fresh pillow looks like it has been through a very long summer.
The good news? You do not always need to throw yellowed pillows away.
With the right washing method, many pillows can be cleaned, brightened, and made fresh again. This simple home laundry trick can help remove sweat stains, reduce odors, and bring tired pillows back to life without spending money on replacements.
Let’s get those pillows looking fresh again. 🧺✨
Why Do Pillows Turn Yellow?
Yellow pillows are usually caused by sweat, body oils, saliva, skincare products, and moisture soaking through the pillowcase over time.
Even if you shower before bed, your body naturally releases oils and sweat while you sleep. That moisture slowly builds up inside the fabric and filling. Add in hair products, face creams, makeup residue, and humidity, and the pillow starts to discolor.
Common causes include:
- Sweat stains
- Natural body oils
- Wet hair before bed
- Face creams and lotions
- Saliva
- Not using pillow protectors
- Washing pillows too rarely
The yellowing does not always mean the pillow is ruined. In many cases, it just needs a deep clean.
Check The Pillow Label First
Before you wash any pillow, check the care label.
Most polyester, cotton, and down alternative pillows can usually be machine washed. Some down and feather pillows can also be washed, but they need extra drying time. Memory foam pillows should usually not be placed in the washing machine because they can break apart or hold too much water.
A simple rule:
Machine washable pillows: polyester, cotton, down alternative, some feather pillows
Spot clean only: memory foam, gel foam, latex foam
If the label says dry clean only or spot clean only, do not risk putting it in the washing machine.
What You Need To Whiten Yellowed Pillows
You do not need expensive products. Most of this can be done with basic laundry supplies.
You will need:
- 2 yellowed pillows
- Laundry detergent
- Oxygen bleach powder
- Baking soda
- White vinegar
- Warm or hot water, if the care label allows
- Tennis balls or dryer balls
- Clean towels
Important: Avoid using chlorine bleach on pillows unless the care label clearly says it is safe. It can weaken fabric, damage fillings, and sometimes make yellowing worse over time.
How To Wash And Whiten Yellowed Pillows
Step 1: Wash Two Pillows At A Time
Always try to wash two pillows together. This helps balance the washing machine and gives the pillows room to move properly.
If you wash only one pillow, the machine may become unbalanced, especially during the spin cycle.
Step 2: Add Your Cleaning Boosters
Place the pillows in the washing machine.
Add:
- Your normal amount of laundry detergent
- 1 scoop of oxygen bleach powder
- 1/2 cup baking soda
The detergent helps remove dirt and oils. The oxygen bleach helps lift yellow stains. The baking soda helps fight odors and freshen the fabric.
This combination is great for pillows that look dull, sweaty, or stale.
Step 3: Use Warm Or Hot Water If Safe
Choose the warmest water setting allowed on the pillow’s care label.
Warm water helps break down body oils better than cold water. Hot water can work well on some washable pillows, but only use it if the label says it is safe.
For delicate fillings, warm water is usually the safer choice.
Step 4: Add An Extra Rinse
Pillows are thick, so detergent can get trapped inside.
Run an extra rinse cycle to make sure all soap, baking soda, and cleaning residue are removed.
This step is easy to skip, but it makes a big difference. Leftover detergent can make pillows feel stiff, heavy, or uncomfortable.
Step 5: Use White Vinegar In The Rinse
If your machine has a fabric softener compartment, add 1/2 cup white vinegar during the rinse cycle.
White vinegar helps remove detergent buildup and odors. It also leaves pillows feeling fresher without coating the fibers like fabric softener can.
Do not worry, your pillows should not smell like vinegar once they are fully dry.
How To Dry Pillows Properly
Drying is just as important as washing.
A damp pillow can develop mildew, smell musty, or clump inside. You want the pillow completely dry before it goes back on the bed.
Place pillows in the dryer on a low or medium heat setting, depending on the care label.
Add:
- 2 clean tennis balls
- Or dryer balls
- Or a couple of dry towels
These help fluff the pillows as they dry and stop the filling from clumping.
Pause the dryer every 30 minutes and fluff the pillows by hand. Keep drying until the inside feels completely dry, not just the outside.
This can take longer than you expect, especially for thick pillows.
What If The Pillow Is Still Yellow?
Some old stains may not disappear after one wash.
If the pillow is cleaner but still yellow, try soaking it before washing.
Fill a bathtub or large basin with warm water and add:
- 1 scoop oxygen bleach powder
- 1/2 cup baking soda
- A small amount of laundry detergent
Let the pillow soak for 1 to 2 hours, then wash as normal.
Do not soak memory foam pillows. This method is only for washable pillows.
How Often Should You Wash Pillows?
Most people wash pillowcases regularly, but the pillow itself gets ignored.
A good rule is to wash pillows every 3 to 6 months, depending on use.
Wash them more often if:
- You sweat at night
- You have allergies
- You sleep with wet hair
- You use lots of skincare products
- You do not use pillow protectors
- Pets sleep on your bed
Fresh pillows can make your bed feel cleaner, smell better, and even help reduce dust and allergens.
Tips To Keep Pillows White Longer
Want to stop pillows turning yellow so quickly? Try these simple habits.
Use pillow protectors
A pillow protector goes under your pillowcase and acts like a barrier against sweat and oils.
Wash pillowcases weekly
This helps stop buildup from reaching the pillow.
Do not sleep with wet hair
Moisture can soak into the pillow and cause yellowing or musty smells.
Avoid heavy face creams before bed
Let skincare products absorb before lying down.
Air pillows out occasionally
Fresh air and sunlight can help reduce odors and moisture.
Replace old pillows when needed
If a pillow is flat, lumpy, smelly, or stained beyond cleaning, it may be time to replace it.
Mistakes To Avoid When Washing Pillows
Here are a few common mistakes that can ruin pillows or leave them worse than before.
Using too much detergent
More soap does not mean cleaner pillows. It can leave residue inside.
Skipping the extra rinse
Pillows hold onto detergent easily, so rinsing well matters.
Not drying long enough
A pillow can feel dry outside but still be damp inside.
Using chlorine bleach too often
It can weaken fabric and damage fillings.
Washing memory foam in the machine
Foam pillows can break apart or become waterlogged.
Common Questions About Washing Yellowed Pillows
Can yellow pillows really become white again?
Yes, many yellowed pillows can become much brighter with oxygen bleach, baking soda, detergent, and a proper wash. Very old or deeply stained pillows may improve but not become perfectly white.
Is it safe to wash pillows in the washing machine?
Many pillows are machine washable, but always check the care label first. Polyester, cotton, and down alternative pillows are usually safe. Memory foam pillows usually are not.
Can I use bleach on yellow pillows?
It is better to use oxygen bleach instead of chlorine bleach. Oxygen bleach is gentler and works well for sweat stains and yellowing.
Why do my pillows smell after washing?
They may not be fully dry. Pillows can trap moisture inside, which causes a musty smell. Put them back in the dryer and keep drying until the center is completely dry.
How do I wash memory foam pillows?
Memory foam pillows should usually be spot cleaned only. Remove the cover and wash it separately. Clean stains with a damp cloth and mild soap, then let the foam air dry fully.
How often should pillows be replaced?
Many pillows need replacing every 1 to 3 years, depending on quality and use. If it stays flat, smells bad, or has permanent stains, it may be time for a new one.
