How to wash a pillow: cleaning, drying, and care tips

How to clean a pillow by fill type

The right way to clean a pillow depends on what's inside it: down and feather fill generally tolerates a full machine wash, while memory foam and latex cores should only ever be spot-cleaned.

Shopping for a specific model? See top-rated pillows models — 10 models compared on the specs that decide it.

Start by checking the sewn-in label before anything else touches water. Manufacturers print wash instructions there because they've tested that specific fill and cover combination, and skipping the label is how a pillow ends up lumpy or, worse, damp and moldy from the inside out.

Down and feather pillows are the most forgiving of the common fill types. Most are rated for a home washing machine on cold water and a gentle cycle, and the fill holds up to repeated washing the way bedsheets do. The care labels on most goose feather and down pillows call for cold water on a gentle cycle followed by a low tumble-dry setting, a fairly standard formula across down products.

Memory foam and latex work the opposite way. The foam core isn't washable at all; water gets trapped in the cell structure and doesn't fully evaporate, which is exactly the kind of lingering dampness that invites mold. Many adjustable memory foam pillows are built around a removable cover for this reason, so the fabric shell can be laundered separately while the foam fill itself only gets spot-cleaned or aired out. Down-alternative synthetic fill, typically a polyester fiberfill, splits the difference: it's usually machine washable like down, without down's delicacy. For a broader look at how these fill types stack up before you even get to cleaning, our pillows hub breaks down the categories.

Washing down and feather pillows without losing the loft

Wash down and feather pillows two at a time to keep the machine balanced, use a gentle cycle with cold water, and expect the drying step to take far longer than the washing step.

Loft is the whole point of a down pillow, and a bad wash cycle is the fastest way to flatten it for good. Load two pillows into the machine together rather than one; a single pillow spinning alone is unbalanced and can strain the seams that keep fill from migrating to one end.

A mild detergent, nothing with bleach or fabric softener, protects the natural oils in down that give it bounce. Down clumps when it's wet, which looks alarming mid-wash, but that's normal and not a sign the fill is ruined. The clumping resolves once the pillow is fully dry and fluffed by hand, not before.

Washing instructions genuinely vary by manufacturer here, so don't assume every down pillow tolerates the same settings. Some goose-down blends specify a gentle cycle with cold water and a low-heat tumble dry; other, higher-fill-power pillows call for professional cleaning instead of a home machine. A pillow that's mostly down with a small share of feather, a common blend ratio in mid-range pillows, tends to handle machine washing better than one that's mostly stiff feather quill, since quills are more likely to poke through a worn cover during agitation. If the cover looks thin or the seams look strained, hand-washing is the safer call.

Why memory foam and latex pillows should never go in the wash

Foam cores trap water instead of releasing it, so submerging a memory foam or latex pillow risks mold growth deep in the core long after the outside feels dry; spot-clean the foam and machine-wash only the removable cover.

Memory foam looks solid, but it's an open-cell structure built to compress and rebound, and that same structure holds water the way a sponge does once it's wet. A quick rinse under the tap seems harmless, but the center of a foam pillow can stay damp for days, well past the roughly 24 to 48 hours the EPA cites as the window before mold starts colonizing wet material indoors. By the time a musty smell shows up, the mold is usually already established inside the core, not just on the surface.

The safer routine treats the foam and the cover as two separate jobs. Pull off the removable cover, if the pillow has one, and wash it on its own the way you would a pillowcase, then let the foam air out separately. Spot-clean stains on the foam with a barely damp cloth and mild soap, dabbing rather than soaking, and let it dry fully in open air before the cover goes back on. Adjustable foam pillows filled with shredded foam rather than a solid block have an edge on drying: the loose fill lets air move through it, and many are built so the cover opens and the fill can be pulled out to spread and dry. A solid foam block holds moisture in its center far longer, which is a big part of why shredded-fill designs caught on in the first place.

Drying a pillow completely, the step most people rush

A pillow isn't done until it's dry all the way through, not just dry on the outside, since trapped moisture in the fill is what leads to mold and a sour smell days later.

Drying takes longer than washing, and that mismatch is where most pillow-cleaning mistakes happen. People pull a pillow out of the machine, feel a dry-ish surface, and put the case back on the same afternoon. The inside, especially with down or a thick foam core, is often still damp.

For down and feather pillows, a low-heat tumble dry with a few clean tennis balls or dryer balls thrown in helps break up clumps and redistribute the fill as it dries, instead of letting it mat into a dense clump at one end. This can take multiple cycles; stopping the dryer, fluffing by hand, and running it again is normal, not a sign something went wrong. Air-drying alone, without any tumbling, tends to leave down clumped and flat since nothing agitates the fill loose.

Foam doesn't go in a dryer at all; heat can degrade the material over time. Air-drying flat, in a well-ventilated spot with a fan pointed at it if one's available, is the only real option, and it runs slower than either machine-wash routine. Press gently on the foam periodically to check for lingering dampness near the center before reassembling the cover, since a pillow that feels dry at the surface can still be wet an inch in. That patience on the drying end, more than anything fancy on the washing end, is really the whole trick behind how to clean a pillow so it lasts.

What routine cleaning can't fix, and when to just replace it

Regular washing keeps a pillow's surface clean and knocks down dust mite populations, but it doesn't rebuild lost loft, reverse years of sweat and oil buildup, or replace a pillow that's simply past its structural life.

There's a ceiling on what cleaning accomplishes. A pillow that's gone flat from years of compression won't spring back to its original loft no matter how carefully it's washed and dried; fill fibers and foam cells both lose their rebound with age, and no detergent restores that. The Asthma and Allergy Foundation of America puts a number on this and recommends replacing a pillow roughly every two years regardless of how clean it looks, since allergen buildup and structural breakdown happen even with regular washing.

An allergen-barrier cover, zippered and woven tight enough to block dust mites and their waste from passing through, does more for long-term allergen control than repeated deep-cleaning, per AAFA's guidance on bedroom allergen control. It's a cheaper habit to maintain than a monthly wash cycle, and it protects the pillow underneath from the sweat and oil that eventually degrade fill regardless of fill type.

If a replacement is what you're actually after rather than nursing an old pillow along, the fill-type differences covered here are the same ones worth weighing before buying. Our pillow buying guide walks through how those trade-offs play out across current models, and if a feather or down fill specifically is what you want, our feather pillow guide compares options built around that fill.