How to Clean a Mattress in a Small NYC Apartment
30.07.2026
To clean a mattress, strip the bedding, vacuum the entire surface with an upholstery attachment, spot-treat stains with a little dish soap and cool water, sprinkle baking soda over the top, let it sit for several hours, then vacuum again. Stand the mattress up near an open window or fan so it dries fully before you remake the bed.
What you'll need
- Vacuum with an upholstery or crevice attachment
- Baking soda
- A few clean white cloths or rags (white so dye doesn't transfer)
- Mild dish soap
- A small bowl of cool water
- An enzyme cleaner (for urine, sweat, or other protein stains)
- A fan, or access to a window that opens
- A fresh mattress protector to put on afterward
Step by step
- Strip all bedding and wash it hot if the care label allows. Do this first so the mattress can air while you work.
- Vacuum the whole surface, including the sides and the seams where dust and skin cells collect. Slow, overlapping passes pull out more than quick ones.
- Spot-treat stains. Mix a drop of dish soap into cool water, dip a cloth, wring it nearly dry, and blot from the outside of the stain inward. Never soak the fabric.
- For urine, sweat, or blood, use an enzyme cleaner instead of soap. Follow the label's timing, then blot with a damp cloth and press with a dry one to lift moisture.
- Sift a thin, even layer of baking soda over the top surface to absorb odor and residual moisture. Leave it for at least a few hours; overnight is better if you can sleep elsewhere.
- Vacuum all the baking soda back up, going slowly so none stays in the seams.
- Flip or rotate the mattress if the manufacturer allows it, and vacuum the other side too.
- Let it dry completely. Stand it on its side near a fan or an open window for several hours before you put on a clean protector and remake the bed.
What NOT to do
- Don't drench the mattress. Foam and pillow-top layers hold water deep inside, and in a humid apartment they can stay damp for days and develop musty odor.
- Don't use bleach or hydrogen peroxide on colored ticking or memory foam; it can lighten fabric and break down foam.
- Don't rub a stain. Rubbing spreads it and pushes liquid toward the core. Always blot.
- Don't remake the bed while the surface is still cool or damp. Trapped moisture under a protector is how odor starts.
- Don't lean a heavy mattress against a hot steam radiator to dry it, and keep it clear of the radiator's heat and moisture.
When to call a pro
DIY handles surface dust and fresh, shallow stains. It does not handle liquid that soaked through to the core, set-in odor you can still smell after deodorizing, or the deep buildup of dust and allergens inside an older mattress. Those need extraction equipment that pulls moisture back out rather than pushing it in, and a foam or pillow-top mattress can't be safely soaked at home. If your mattress has a smell that keeps coming back or a stain that reached the padding, book deep cleaning with CleanWhale instead of over-wetting it yourself.
FAQ
How often should I clean my mattress?
Vacuum it and refresh with baking soda every few months, and wash your mattress protector regularly. Handle spills the day they happen so they don't reach the padding.
Can I clean a mattress in one day in a small apartment?
The active work takes under an hour, but drying is the slow part. Plan for the mattress to sit on its side for several hours with a fan or open window, so start in the morning and have somewhere else to sit that evening.
Does baking soda remove old urine smell?
Baking soda helps with surface odor and light dampness, but urine that reached the core usually needs an enzyme cleaner and, if the smell returns, professional extraction. Baking soda alone won't reach liquid deep in the foam.
Should I flip my mattress?
Only if the manufacturer says it's a two-sided mattress. Many modern mattresses are one-sided and should be rotated head-to-foot instead of flipped, which also evens out wear in a small bedroom where the bed rarely moves.
Related guides
