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Yes, many yellowed pillows can be washed, but the right method depends on the pillow filling. Polyester, down, and feather pillows are often washable. Memory foam and latex pillows usually should not go in a washing machine.
Always check the care label first. Yellow stains may fade rather than disappear completely, especially when they come from years of body oils, sweat, saliva, skin products, or detergent buildup.
Why Do Pillows Turn Yellow?
Pillows commonly turn yellow because they absorb moisture and oils during regular use. A pillowcase slows this down, but it does not block everything.
Common causes include:
- Sweat and natural skin oils
- Saliva
- Damp hair
- Face creams and hair products
- Moisture trapped inside the pillow
- Detergent or fabric softener buildup
- Long periods without washing
- Natural aging of the fabric and filling
Yellowing does not always mean the pillow is dirty enough to be unusable. However, washing may be helpful when the pillow also smells stale, feels oily, or has visible surface marks.
Check the Pillow Before Washing
Read the care label before washing, drying, bleaching, ironing, or using heat. The label may tell you whether the pillow can be machine washed, hand washed, spot cleaned, or professionally cleaned.
Also inspect the pillow for:
- Ripped seams
- Holes in the outer fabric
- Loose filling
- Crumbling foam
- Heavy clumps
- A strong odor that does not air out
Repair small seam openings before washing. A damaged pillow can release filling into the washer.
Check your washer size as well. The pillow needs enough room to move through the water. Do not force a thick pillow into a small or portable washer. A laundromat machine may be a better choice for large, dense pillows.
How to Wash a Yellowed Machine-Washable Pillow
These steps work for many polyester, down, and feather pillows, but the care label should always come first.
1. Remove All Covers
Take off the pillowcase and any removable pillow protector. Wash them separately according to their own care labels.
A pillow protector is a fitted or zippered cover that sits between the pillow and pillowcase. It helps keep moisture and oils away from the pillow filling.
2. Pre-Treat the Yellow Areas
Apply a small amount of mild liquid laundry detergent to the stained fabric. Gently work it into the surface with your fingers or a soft cloth.
Let it sit for a short time, but do not allow the detergent to dry on the pillow.
An oxygen-based laundry product may help with yellow stains if the care label allows it. Follow the product directions and test it on a small area first.
Avoid chlorine bleach unless the pillow label specifically permits it. Bleach can weaken some fabrics, damage filling, and leave uneven marks.
3. Balance the Washer
Wash two pillows together when possible. Placing one pillow on each side of the washer helps balance the load.
When washing only one pillow, add a few light towels if the washer instructions allow it. Do not pack the drum tightly.
A front-loading washer or a top-loading washer without a center agitator is often easier on bulky pillows. A center agitator is the tall post in the middle of some top-load washers. It can bend or compress thick pillows.
4. Choose the Correct Cycle
Use the temperature and cycle listed on the care label. A gentle cycle with cold or warm water is common for washable pillows.
Use a small amount of mild detergent. Too much detergent can become trapped inside the filling and make rinsing difficult.
Run an extra rinse if the pillow still feels soapy. Thick pillows hold more detergent than sheets or pillowcases.
5. Dry the Pillow Completely
Drying is just as important as washing. Moisture can remain deep inside the filling even when the outer fabric feels dry.
Use the heat setting shown on the care label. Many synthetic pillows can use low heat. Down and feather pillows often need low heat and a longer drying time.
Pause the dryer several times to:
- Turn the pillow
- Break apart clumps
- Check for damp areas
- Fluff the filling
Clean dryer balls can help move the filling around. Check the pillow’s center before placing it back on the bed. It should feel completely dry and have no cool, damp spots.
Washing Different Pillow Types
Polyester Pillows
Polyester pillows are often machine washable. Use a gentle cycle, mild detergent, and the heat setting listed on the label.
Polyester fill may clump after washing. Fluff the pillow by hand during and after drying. Older polyester pillows may not return to their original shape.
Down and Feather Pillows
Many down and feather pillows can be washed, but the care instructions vary. Use a small amount of gentle detergent and rinse thoroughly.
Learn whether pillows can go in the dryer by checking fill, care labels, heat limits, drum space, drying aids, shape, and complete moisture removal.
Dry the pillow completely on an approved low setting. Down and feathers can hold moisture deep inside, so drying may take several cycles.
Do not wash the pillow if the fabric is weak or feathers are already escaping through the seams.
Memory Foam Pillows
A solid memory foam pillow usually should not be placed in a washing machine. The movement and water can damage or tear the foam.
Remove and wash the outer cover if it is washable. Clean the foam surface with a lightly damp cloth and a small amount of mild detergent, following the manufacturer’s directions. Do not soak the foam.
Allow it to air dry fully in a well-ventilated space before replacing the cover.
Shredded memory foam pillows vary. Some have washable covers but non-washable filling. Check the current product instructions.
Latex Pillows
Latex pillows are generally not suited to machine washing or machine drying. Wash the removable cover as directed and spot clean the pillow only when the manufacturer allows it.
Keep latex away from strong heat and direct sunlight unless the care instructions say otherwise.
Buckwheat and Other Loose-Fill Pillows
Do not wash a pillow while loose natural filling is inside it unless the manufacturer specifically says it is washable.
Some buckwheat pillows have a zippered cover that allows the hulls to be removed. The empty fabric cover may then be washed according to its label. The filling must remain dry.
Can You Soak a Yellowed Pillow?
Soaking may help some washable pillows, but it is not suitable for every type. Dense pillows can become waterlogged and difficult to rinse or dry.
Only soak the pillow when the care label permits it. Use a clean tub or large sink, mild detergent, and the recommended water temperature. Press the pillow gently instead of twisting or wringing it.
Avoid soaking foam, latex, or loose-fill pillows unless the manufacturer gives specific instructions.
What to Avoid
A few common washing mistakes can damage a pillow or leave it dirtier than before.
Avoid:
- Using more detergent than needed
- Pouring bleach directly onto the pillow
- Washing solid foam or latex in a machine
- Stuffing large pillows into a small washer
- Using high heat without checking the care label
- Putting a damp pillow back on the bed
- Wringing, twisting, or pulling wet filling
- Washing a pillow with torn seams
Fabric softener may coat some filling and reduce its ability to fluff. Check the care label before using it.
What If the Yellow Stains Do Not Come Out?
Old yellow stains may remain after a proper wash. This is common when oils and moisture have been building up for years.
A faint stain does not automatically make a clean, dry pillow unusable. Place it inside a clean pillow protector and pillowcase if it still feels comfortable, smells fresh, and holds its shape.
Repeated washing may cause more damage than improvement. Stop if the fabric begins to weaken or the filling starts to break apart.
When Should You Replace a Yellowed Pillow?
Consider replacing the pillow when:
- It stays lumpy after washing and drying
- The filling has flattened and does not recover
- Foam is cracking or crumbling
- Seams or fabric are badly worn
- It keeps a strong odor after proper cleaning
- It cannot be dried completely
- The filling has shifted into hard clumps
- It no longer feels suitable for your bed
A guest-room pillow may last longer because it is used less often. Pillows in a shared bed, kids’ room, dorm, RV, or hot bedroom may need cleaning more often due to moisture, spills, limited ventilation, or frequent use.
How to Prevent Pillows From Yellowing
Use a washable pillow protector under the pillowcase. Choose one that fits without squeezing the pillow or making it feel too firm.
Other helpful habits include:
- Wash pillowcases regularly
- Wash protectors according to their care labels
- Let hair dry before bed
- Allow skin and hair products to absorb before lying down
- Air out pillows during bedding changes
- Dry damp pillows promptly
- Keep pets’ bedding and sleeping areas clean
- Store spare pillows only when they are fully dry
During seasonal bedding swaps, clean and dry pillows before storing them. Use a breathable storage bag and keep them away from damp areas.
Frequently Asked Questions
Can yellow stains be completely removed from pillows?
Fresh yellow stains may lighten or disappear after pre-treatment and washing. Older stains may only fade because oils and moisture can become deeply set in the fabric. Follow the care label and avoid repeated harsh washing.
Can I use baking soda on a yellowed pillow?
Baking soda may help reduce mild surface odors, but it may not remove deep yellow stains. Check the pillow instructions before applying any cleaning product. Remove loose baking soda thoroughly before using or washing the pillow.
Can I use bleach on yellow pillows?
Only use chlorine bleach when the care label specifically allows it. Bleach may weaken fabric, damage some fillings, or create uneven discoloration. An oxygen-based laundry product may be an option for some washable pillows, but its label and the pillow care instructions should be checked first.
How many pillows can I wash at once?
Two standard pillows are often washed together to help balance a full-size machine. The correct number depends on the pillow thickness and washer capacity. Each pillow needs room to move and rinse properly.
Can I wash a yellowed memory foam pillow?
Solid memory foam usually should not be machine washed or soaked. Wash the removable cover if allowed, then spot clean the foam according to the manufacturer’s directions. Let it air dry completely.
Why is my pillow still yellow after washing?
The staining may be old, or oils may have changed the color of the fabric over time. The washer may also have been overloaded, or detergent may not have rinsed out fully. A second harsh wash is not always helpful and may damage the pillow.
Can I sleep on a pillow while it is slightly damp?
The pillow should be completely dry before use. Thick filling can remain damp in the center even when the outside feels dry. Continue drying according to the care label and check the middle for cool or damp areas.
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