How To Get Pee Out Of a Mattress Topper: Step‑by‑Step FAQ Guide

If you’re searching for how to get pee out of a mattress topper, you’re likely dealing with a fresh accident or an old, lingering stain and smell. This guide walks you through what to do right away, how to deep-clean different toppers, and when a stain might be too far gone.

What’s the best way to get pee out of a mattress topper?

The basic process for how to get pee out of a mattress topper is:

  1. Act fast – blot, don’t rub.
  2. Use a gentle cleaner – usually mild detergent, white vinegar, and/or baking soda.
  3. Rinse carefully – don’t soak all the way through.
  4. Dry completely – air-dry in a well‑ventilated spot.

Here’s a simple method that works for many foam, latex, and fiberfill toppers:

  1. Remove bedding immediately and put it aside for separate washing.
  2. Blot the pee with a clean, dry towel or paper towels, pressing down firmly. Avoid scrubbing, which can push liquid deeper.
  3. Mix a mild cleaning solution:
    • 1 part white vinegar to 3 parts water, plus a few drops of mild liquid soap.
  4. Lightly spray or dab the area with the solution. Do not saturate the topper—aim to dampen only the affected spot.
  5. Blot again with a clean towel to lift out as much moisture and residue as possible.
  6. Sprinkle baking soda generously over the area and let it sit for several hours (or overnight) to absorb moisture and odor.
  7. Vacuum the baking soda thoroughly using a handheld or upholstery attachment.
  8. Air-dry completely in a ventilated area, ideally near a fan or open window.

Does the cleaning method change by mattress topper type?

Yes. Material matters when deciding how to get pee out of a mattress topper safely.

Memory foam or latex toppers

  • Do:
    • Use minimal liquid.
    • Blot thoroughly after each step.
    • Allow extra time for drying.
  • Avoid:
    • Soaking the foam or using very hot water.
    • Harsh chemicals like bleach, which can weaken the material or affect color.

Fiberfill, down alternative, or wool toppers

  • Do:
    • Check the care tag. Some can be machine-washed on gentle.
    • Use a mild detergent and cool or warm water if machine washing is allowed.
  • Avoid:
    • High heat drying if the label warns against it.

Toppers with removable covers

If your topper has a zippered cover:

  • Remove and wash the cover following its care instructions.
  • Clean the inner core as gently as possible using a spot‑cleaning method like above.

How do I remove old or dried pee stains from a mattress topper?

Old stains are tougher because they’ve had time to soak in and dry, but you can often lighten them and reduce odor.

  1. Rehydrate the stain lightly with the vinegar-and-water solution so it can loosen.
  2. Blot to pull out as much as possible.
  3. Apply baking soda and leave it several hours (or more than once if needed).
  4. Vacuum and repeat the process if the odor lingers.

For very set-in stains, you may need multiple rounds of cleaning. If the topper still smells strongly or the foam feels damaged or brittle, it may be difficult to restore fully.

How can I get rid of lingering odor after cleaning?

If you’ve removed the visible stain but still notice a smell:

  • Use more air circulation:
    • Place the topper in a dry, well‑ventilated room.
    • Use a fan or open windows to move air.
  • Repeat baking soda treatment:
    • Sprinkle a fresh layer, let sit 8–24 hours, then vacuum.
  • Sunlight (if allowed by the care tag):
    • Short periods in indirect sunlight can help freshen and dry, but avoid prolonged direct heat that may affect foam.

Odors often fade over time once the moisture is gone, as long as the topper is completely dry.

Is it safe to put a pee‑stained topper in the washing machine?

It depends entirely on the care label:

  • Machine-washable toppers (often thinner fiberfill types) may be cleaned in a large washer on gentle with mild detergent.
  • Foam and latex toppers are usually not machine washable. Agitation and soaking can tear or deform the foam.

If the label says “spot clean only” or “do not machine wash,” stick with surface cleaning and air-drying.

How long does it take a mattress topper to dry after cleaning?

Drying time depends on thickness, material, and room conditions:

  • Thin fiberfill toppers: often a few hours to half a day.
  • Thick memory foam or latex: sometimes 24 hours or more.

To speed drying:

  • Place the topper on a flat, breathable surface.
  • Flip it occasionally so both sides air out.
  • Use fans or gentle airflow.
  • Avoid high heat sources like space heaters, which may damage foam or covers.

Always ensure the topper is fully dry before putting sheets back on to prevent musty smells and moisture buildup.

How can I prevent future pee stains on a mattress topper?

While accidents happen, a few simple steps can make cleanup much easier:

  • Use a waterproof protector over the mattress and/or topper.
  • Choose removable, washable covers when possible.
  • Address accidents immediately—the faster you blot and clean, the less likely stains and odors will set.

✅ Quick Mattress Takeaways

Key points on how to get pee out of a mattress topper:

  • Act fast: Blot up as much liquid as possible before it soaks in.
  • Use gentle cleaners: A mix of mild soap, water, and white vinegar can help lift fresh stains.
  • Limit moisture on foam: Lightly dampen, never soak, memory foam or latex toppers.
  • Baking soda is your friend: It helps absorb both moisture and odor; let it sit, then vacuum.
  • Check the care tag: Some toppers can be machine-washed, while many foam types must be spot-cleaned only.
  • Dry thoroughly: Adequate air-drying prevents lingering smells and helps maintain the topper’s feel.
  • Protect going forward: Waterproof covers and quick cleanup make future accidents easier to manage.

With patient, gentle cleaning and thorough drying, many toppers can be refreshed after a pee accident and stay comfortable for continued use.