You wash your sheets every week, but the pillow underneath? Maybe never. It sits closer to your face than anything else in the bedroom, soaks up sweat and skin oils every night, and is one of the few things you sleep on that genuinely wears out. If yours has gone yellow, flat or a little stale, you're right to wonder whether to wash it or replace it.
This page answers both questions: how to wash a pillow safely based on what's inside it, how to dry it without lumps, how long each fill type generally lasts, and the quick checks that tell you it's time for a new one. Always follow your pillow's care label where it differs from the advice below.
The Short Answer
- Check the care label first. Fill type decides everything. As a default, the cover is usually machine washable; the fill or core often is not.
- Polyester and down-alternative pillows can usually be machine washed whole on a gentle, cold cycle, then tumble-dried low with tennis or dryer balls.
- Solid memory foam and latex cores: spot-clean only. Never machine wash, submerge or tumble-dry them.
- Shredded foam varies by brand. Some, like Coop's adjustable pillows, are sold as fully machine washable; others want the liner spot-cleaned.
- Replace by fill, as a rough guide: about 1–2 years for polyester or down-alternative fiber, 2–3 years for memory foam, and 3 years or more for latex.
- Use the fold test: fold the pillow in half. If it doesn't spring back, it's time to replace it, whatever the calendar says.
How Do You Know How to Wash Your Pillow?
Read the care label or the manufacturer's instructions before anything else. Fill type determines how a pillow should be washed, and guessing wrong is the most common way people damage a pillow or void a warranty.
If you've lost the label, use the sections below, which match care to the most common fill types. The safe default: the outer cover is usually machine washable, while the fill or core often is not, so treat the two separately when you're unsure.
| Fill type | Cover | Fill or core | How often |
|---|---|---|---|
| Down alternative / polyester fiber | Machine wash | Machine wash whole (gentle, cold) | Whole pillow every 3–6 months |
| Shredded memory foam | Machine wash, gentle cold | Depends on brand: some fully washable, others spot-clean the liner | Cover every 2–4 weeks |
| Solid memory foam / TEMPUR-style | Machine wash, gentle cold | Spot-clean only | Cover every 2–4 weeks |
| Latex | Usually machine wash (check label) | Spot-clean only | Cover every 2–4 weeks |
| Gel-grid / specialty cover | Often hand-wash or spot-clean only | Spot-clean only | As the manufacturer specifies |
How to Wash a Pillow by Fill Type
Fiber pillows go in the machine; solid foam and latex cores never do. If you're looking for how to wash a memory foam pillow, the key distinction is solid versus shredded.
How do you wash a down alternative or polyester pillow?
Machine wash the whole pillow on a gentle cycle with cold water and a mild liquid detergent. Loose fiber fill survives a wash cycle without breaking apart the way foam can.
- Wash on a gentle or delicate cycle with cold water and mild liquid detergent. Powder can clump in the fill.
- Dry on low with two or three clean tennis balls or dryer balls to break up clumps.
- Repeat the dry cycle until it's fully dry. Expect several cycles; a damp pillow left to sit is a mold risk.
Wash frequency: every 3–6 months, or more often if you don't use a pillowcase and protector.
How do you wash a shredded memory foam pillow?
Check the label, because brands differ. Some adjustable shredded-foam pillows are designed to be washed whole: Coop Home Goods lists both its Original and Cool+ as machine washable, cover, lining and fill. Others only allow the outer cover in the machine and ask you to spot-clean the inner liner.
If washing is allowed, use a gentle cold cycle, then dry low with dryer balls and be patient: shredded foam holds moisture in the middle. If it isn't, wash the cover every 2–4 weeks and spot-clean the liner with a damp cloth and mild detergent.
Can you wash a solid memory foam pillow?
Only the cover. Solid foam pillows, including TEMPUR-style foam such as the TEMPUR-Cloud and TEMPUR-Ergo Neck, have removable, machine-washable covers, but the core itself is never meant to get wet.
Wash the cover on a gentle cold cycle every 2–4 weeks and dry it as its label directs. Spot-clean the foam core with a damp cloth and a little mild detergent only when needed. Never machine wash or submerge solid foam: water trapped inside doesn't dry out cleanly and can lead to mold or damage the foam.
How do you wash a latex pillow?
Wash the cover and spot-clean the core. Latex follows the same logic as solid foam.
The cover is usually machine washable, but check the label; organic cotton covers sometimes call for cold water only. Spot-clean the latex core with a damp cloth and mild detergent, never machine wash or submerge it, and keep it out of direct sunlight for long periods, which can degrade natural latex.
What about gel-grid and specialty cooling pillows?
Many can't go in a washing machine at all. The Purple Harmony, for example, has a grid cover Purple lists as hand-wash or spot-clean only, and its latex core is spot-clean only. Follow the manufacturer's schedule for any pillow with an open grid or technical cooling cover.
How Do You Dry a Pillow Without It Going Lumpy?
Tumble-dry on low with two or three tennis balls or dryer balls, and keep going until the center is completely dry. These general tips apply to every pillow:
- Use a pillow protector. Washing an inexpensive protector every couple of weeks is far easier than deep-cleaning the pillow, and it helps the pillow last.
- Wash two pillows at once if your machine allows. A single pillow can throw the drum off balance during the spin.
- Dry completely before use. Squeeze the center after drying. If it feels even slightly damp, run another cycle.
- Keep solid foam and latex out of the washer and dryer, even with the cover removed. Water and heat can damage both.
No washing machine? Fiber pillows need one to clean properly, but foam and latex cores never go in the machine anyway; a damp cloth, mild detergent and plenty of air-drying is the right method for those.
When to Replace Pillows
There's no exact expiry date. How long a pillow lasts depends on the fill, how much it's used, your body weight and how well it's protected. The ranges below are general, conservative guidance based on how each material behaves and common manufacturer advice, not our own measurements. This is the lifespan table we use across all our pillow guides.
| Fill type | Typical lifespan (general guide) | Why |
|---|---|---|
| Polyester fiber / down alternative | About 1–2 years | Fibers mat and flatten under nightly compression |
| Memory foam (solid or shredded) | About 2–3 years | Foam gradually loses its spring; shredded fill can sometimes be topped up |
| Latex | About 3 years or more | Latex resists compression better than foam or fiber |
Denser premium foams and latex often outlast these ranges, and cheaper fills can wear out sooner. Treat the table as a prompt to check your pillow, not a rule.
The cheapest fills aren't automatically a bad buy. Replacing an inexpensive pillow more often can still cost less over time than one premium pillow, as long as you're happy to replace it.
What Are the Signs You Need a New Pillow?
If it fails the fold test, it's done. Replace your pillow if you notice any of these:
- It fails the fold test. Fold it in half; if it stays folded or doesn't spring back, the fill or foam has broken down. (This works for fiber and shredded fill; solid foam and latex are better judged by sagging, cracking or crumbling.)
- Lumps or uneven fill that don't shake out after washing.
- Yellowing or stains that won't wash out, which usually means sweat and oils have soaked into the fill.
- Persistent odor after washing, which can indicate mold or bacteria inside.
- New neck or shoulder discomfort when you wake. A pillow that's lost loft no longer supports your neck the way it did. If it keeps happening, see our best pillow for neck pain guide, and see a doctor if pain persists.
- Allergy symptoms that flare at night. Dust mites build up in older pillows, and washing doesn't fully remove them.
Our Recommendations When It's Time to Replace
If your old fiber pillow flattened quickly, a longer-lasting fill is worth considering. These are the pillows we'd look at first, based on their construction and policies:
- Coop Home Goods Original ($69–$89, 100-night trial, 5-year warranty): adjustable shredded foam, fully machine washable, and you can add or remove fill as it settles.
- TEMPUR-Cloud ($79–$99, 5-year warranty): dense TEMPUR foam built for durability, for back sleepers who don't run hot. Only the cover is washable.
- Naturepedic Organic Latex Side Sleeper Pillow ($125–$165, 30-night trial, 1-year warranty): solid organic latex, for committed side sleepers who want a fill that resists packing down.
For more options by sleep position or budget, see our best pillow for side sleepers, best pillow for back sleepers, best cooling pillow and best pillow under $100 guides. Our latex pillow guide explains Talalay vs. Dunlop, and how to choose a pillow walks through loft and fill.
Bottom Line
Wash the cover often and treat the fill with more caution: machine wash fiber and down-alternative pillows, check the label on shredded foam, and only ever spot-clean solid foam and latex cores. Dry everything completely, and use a protector so deep cleaning is rarely needed.
As a rough schedule, expect to replace fiber pillows every year or two, foam every two to three years, and latex after three years or more, but trust the fold test and your neck over the calendar.
Frequently Asked Questions
Can you put a memory foam pillow in the washing machine?
Not a solid one. The solid foam core should never be machine washed or submerged; wash the removable cover and spot-clean the foam.
Some shredded memory foam pillows, such as Coop's, are designed to be fully machine washable, so check your label.
How often should pillows be washed?
Wash the cover every 2–4 weeks, and the whole pillow (for fully washable types) every 3–6 months. A pillow protector reduces how often deep cleaning is needed.
How do you dry a pillow so it doesn't get lumpy?
Tumble-dry on low heat with two or three clean tennis balls or dryer balls. Expect several cycles, and make sure the center is completely dry before you use it.
How often should you replace your pillow?
As a general guide: about 1–2 years for polyester or down-alternative fiber, 2–3 years for memory foam, and 3 years or more for latex. The fold test and how your neck feels are better signals than the calendar.
Can you wash a latex pillow?
Only the cover, usually. Spot-clean the latex core with a damp cloth, never submerge or machine wash it, and keep it out of prolonged direct sunlight.
Is it bad to sleep on an old, flat pillow?
It can be. A pillow that's lost its loft no longer holds your head and neck in a neutral position, which may contribute to stiffness or disrupted sleep.
If it fails the fold test, replace it.
Can washing a pillow get rid of dust mites?
Washing at the hottest temperature the care label allows helps reduce dust mites and allergens, but it won't remove everything from an older pillow. A frequently washed protector is a more effective long-term barrier.
How do you clean a pillow without a washing machine?
Spot-clean it with a damp cloth and a little mild detergent, then let it air-dry completely. That's the correct method for foam and latex cores anyway; fiber pillows need a machine wash to get properly clean.
