How to Clean a Mattress and Keep It Fresh 🛏️

You pull the fitted sheet off and there it is: a faint yellow patch, a dusty seam, a bed that smells a little less fresh than it should. My mother turned every mattress on our farm top to bottom and said, "A bed wears where you sleep."

Here is how to vacuum, spot-clean and deodorize a mattress, and how often to rotate it, with a chart to save at the end.

What has changed: rotate, don't flip

Her habit fit her mattresses. Most mattresses sold now are one-sided, with a support core below and comfort layers on top, so the Sleep Foundation says don't flip unless the maker says to. Pillowtops count too.

• Foam, latex, newer innerspring: rotate head to foot 1–2 times a year.
• Older innerspring: rotate 2–5 times a year.
• Zoned support (a firmer middle for your back): usually don't rotate.
• Double-sided: flip only if the label or manual says so.

The clean that lasts: three steps

1. Vacuum. Strip and wash the bedding. Upholstery tool on the top and sides, crevice tool along seams and folds.
2. Spot-clean. Blot, never rub, with a lightly damp cloth. Never pour cleaner onto the mattress.
3. Deodorize. Sift baking soda thinly across the dry surface. Leave it a few hours at least; Consumer Reports suggests a full day. Then remove it.

Stains by type

Peroxide bleaches, so test a hidden spot. Go easy on liquid; memory foam isn't made to get wet.

Hidden tips

• Hot water sets blood. Blot blood with cold water only, before anything else.
• Spare your vacuum. Fine powder like baking soda can damage some vacuums. Check the manual, and wipe most of it off with a dry cloth first.
• Dry is deeper than it looks. A surface can feel dry while the layer below is still damp. Wait.

What fades: soaking and scrubbing

My read: the full scrub-down is on its way out, and good riddance. Water you can't dry out is worse than the stain, and a washable cover or zippered encasement does more of the work. Consumer Reports suggests a deep clean at least twice a year, or four times a year with no encasement. If you have allergies to mites, the advice from National Jewish Health is weekly bedding washes at 130°F or hotter.

Save this: mattress care at a glance

Trends come and go; a dry, rotated, covered mattress doesn't.