Most pillows spend years collecting dust, sweat, oils, and allergens, yet many people hesitate to toss them in the washing machine for fear of ruining them. The good news is that most common pillow types can survive a trip through your washer when you follow the right approach for each fill material.
This guide walks you through which pillows you can machine wash, how to prepare and wash each type safely, what settings and detergents work best, and how to dry them properly so they emerge clean, fresh, and fully intact.
Can You Machine Wash Pillows?
Yes, you can machine wash most pillows, including those filled with polyester, down, feathers, and some memory foam varieties. The key is matching your washing method to the pillow’s fill material. Solid memory foam, latex, and buckwheat pillows should not go in the washing machine, but their removable covers usually can.
Why Regular Pillow Washing Matters
Pillows absorb body oils, dead skin cells, saliva, and perspiration every night. Over months, this buildup creates an ideal environment for dust mites, bacteria, and mold spores that can trigger allergies and affect sleep quality.
Washing pillows every three to six months removes these contaminants and extends the pillow’s usable life. Clean pillows also smell better and feel fresher, making your bed more inviting and hygienic.
Which Pillow Types Are Machine Washable
Before you start a load, check the care label sewn into your pillow. This tag tells you exactly what the manufacturer recommends, and following it protects any warranty you might have.
Polyester and Synthetic Fill Pillows
These are the most forgiving pillows to wash. Polyester fiberfill holds up well in standard washers and dryers, making synthetic pillows ideal for frequent cleaning.
Most polyester pillows tolerate warm water and regular spin cycles without losing their shape. They also dry relatively quickly compared to natural fills.
Down and Feather Pillows
Down and feather pillows can go in the washing machine, but they require gentler handling than synthetic options. Use a large-capacity washer so the pillows have room to move and rinse thoroughly.
Down retains moisture and takes longer to dry than synthetic fill. Incomplete drying leads to clumping, odors, and potential mold growth, so plan for extended drying time.
Memory Foam Pillows
Shredded memory foam pillows with removable covers are often machine washable, but you need to read the label carefully. Some shredded foam can be washed on a gentle cycle, while others should only be spot-cleaned.
Solid memory foam pillows should never go in the washing machine. Water breaks down the foam structure, and the material absorbs moisture that nearly impossible to remove, leading to mold.
Latex Pillows
Solid latex pillows cannot be machine washed. The agitation and water absorption damage the latex, and the weight of a waterlogged latex pillow can strain your washer.
Instead, spot-clean latex pillows with a damp cloth and mild soap, then air them out regularly. Wash the removable cover according to its care label.
Buckwheat and Alternative Fill Pillows
Buckwheat hulls, millet, and similar organic fills should not be washed in a machine. The hulls absorb water and can mildew or sprout.
Remove the fill, wash the cover separately, and air out the hulls in direct sunlight to refresh them naturally.
Preparing Pillows for the Washing Machine
Proper preparation prevents damage and ensures your pillows come out truly clean. Taking a few minutes before washing saves you from replacing ruined pillows.
Check for Rips and Weak Seams
Inspect your pillow carefully for any tears, holes, or loose stitching. The washing machine agitation will worsen these weak spots and can scatter fill material throughout your washer.
Repair small tears with a needle and thread before washing. If the damage is extensive, the pillow may be too worn to wash safely.
Remove Pillowcases and Protectors
Strip off all pillowcases, shams, and zippered protectors. Wash these items separately according to their own care instructions.
Leaving covers on prevents the pillow itself from getting fully clean and can trap moisture during drying.
Treat Stains Before Washing
Apply a small amount of mild detergent or stain remover directly to any visible stains. Let it sit for ten to fifteen minutes before placing the pillow in the washer.
Avoid harsh bleach unless the care label specifically allows it. Bleach can yellow some fills and weaken fabric fibers over time.
How to Machine Wash Pillows Step by Step
The washing process varies slightly depending on fill type, but these general steps apply to most machine-washable pillows.
Load the Washer Correctly
Wash two pillows at once to balance the load and prevent the washer from becoming lopsided during the spin cycle. If your washer is small, wash one pillow alone and add a couple of bath towels to balance it.
Place the pillows in vertically if your washer is a top-loader, or horizontally in a front-loading machine. Make sure they have room to move freely.
Choose the Right Water Temperature
Warm water works well for most synthetic and down pillows, offering good cleaning power without damaging fills. Hot water can shrink some fabrics and may not be necessary for routine cleaning.
Cold water is safest for delicate fills and pillows with color-sensitive fabric covers. Check your care label if you’re uncertain.
Select the Proper Cycle and Spin Speed
Use a gentle or delicate cycle for down, feather, and shredded memory foam pillows. These fills compress easily and benefit from less aggressive agitation.
Polyester pillows can usually handle a normal cycle. A second rinse cycle helps remove all detergent residue, which can leave pillows feeling stiff or attract dirt faster.
Use the Right Amount of Detergent
Add a small amount of mild liquid detergent, roughly half of what you’d use for a regular clothing load. Too much detergent leaves residue that’s hard to rinse out completely.
Avoid fabric softeners and dryer sheets with pillows. These products coat the fill and reduce its loft and breathability over time.
Drying Pillows Properly
Drying is just as important as washing. Pillows that stay damp become breeding grounds for mold and bacteria, and they can develop a musty smell that’s hard to eliminate.
Machine Drying Guidelines
Use a low or medium heat setting to protect both the fill and the fabric cover. High heat can melt synthetic fibers, scorch cotton, or damage down clusters.
Toss in two or three clean tennis balls or wool dryer balls to help break up clumps and restore loft as the pillow dries. The balls bounce around and fluff the fill continuously.
How Long Drying Takes
Polyester pillows typically dry in one to two hours. Down and feather pillows may need three to four hours or longer, depending on their size and how much fill they contain.
Stop the dryer every thirty to forty minutes to fluff and rotate the pillows by hand. This helps them dry evenly and prevents the fill from matting in one spot.
Testing for Complete Dryness
A pillow may feel dry on the outside while the inner fill remains damp. Press firmly on different areas and feel for any coolness or moisture.
Never put a pillow back on your bed until it’s completely dry. Even slight dampness can lead to mold growth, especially in down and feather fills.
Air Drying as an Alternative
You can air-dry pillows outdoors on a sunny, breezy day. Lay them flat on a clean surface or hang them on a clothesline, rotating them every few hours.
Air drying takes longer but uses no energy and is gentler on delicate fills. Make sure the pillow dries fully before bringing it inside.
Pillows That Should Never Go in the Washing Machine
Some pillow types require hand-washing or professional cleaning. Putting them in the machine ruins their structure and voids any warranty.
- Solid memory foam pillows
- Solid latex pillows
- Buckwheat hull pillows
- Pillows with extensive damage or separated seams
- Antique or heirloom pillows with delicate fabrics
- Pillows labeled “dry clean only”
For these types, spot-clean stains with a damp cloth and mild soap, or take them to a professional cleaner who specializes in bedding.
Common Mistakes That Ruin Pillows
Even machine-washable pillows can be damaged when washed incorrectly. Avoiding these common errors protects your investment and keeps pillows comfortable.
Using Too Much Detergent
Excess detergent leaves a sticky residue that attracts dirt and makes the pillow feel heavy. It also requires multiple rinse cycles to remove, wasting water and time.
Stick to one to two tablespoons of liquid detergent for a full pillow load. Less is truly more when washing pillows.
Skipping the Extra Rinse
Pillow fill traps soap more readily than flat fabrics. An extra rinse cycle ensures all detergent is flushed out, leaving the pillow truly clean and soft.
Most washers have an extra rinse button you can select before starting the cycle. This small step makes a noticeable difference.
Drying on High Heat
High dryer heat melts polyester, scorches cotton ticking, and can cause down clusters to break apart. It also shrinks some pillow covers, leaving the fill bunched and uncomfortable.
Always use low or medium heat, even if it means running the dryer longer. Patience pays off in pillow longevity.
Putting Pillows Away Damp
A pillow that feels mostly dry may still harbor moisture deep in the fill. This trapped dampness creates the perfect conditions for mold, mildew, and unpleasant odors.
When in doubt, run the dryer for another cycle or let the pillow air out for an extra day before use.
How Often to Wash Your Pillows
Pillowcases should be washed weekly, but the pillows themselves need cleaning less frequently. Most experts recommend washing pillows every three to six months under normal use.
Wash pillows more often if you sweat heavily at night, have allergies, or if someone in your household has been ill. Pillow protectors reduce how often you need to wash the pillow itself.
When to Replace Rather Than Wash
Washing refreshes pillows, but it can’t reverse structural breakdown. If your pillow has lost its supportive loft, developed permanent lumps, or shows visible yellowing that doesn’t wash out, it’s time to replace it.
A simple test: fold the pillow in half and let go. If it doesn’t spring back to its original shape, the fill has broken down and washing won’t restore it.
Machine washing pillows keeps your sleep environment cleaner and healthier without requiring professional services or expensive replacements. Match your method to your pillow type, use gentle settings and minimal detergent, and make sure everything dries completely before you put fresh pillowcases back on.