How To Clean Memory Foam Mattress: Step‑By‑Step FAQ Guide

If you’re searching for How To Clean Memory Foam Mattress, you’re likely dealing with spills, stains, or just general freshness. This guide answers the most common questions about cleaning memory foam safely, so you can protect its feel and extend its life.

What makes cleaning a memory foam mattress different?

Memory foam is made of porous, absorbent foam that can soak up liquids quickly. Unlike traditional innerspring mattresses, it:

  • Holds moisture longer, so drying takes more time
  • Can be damaged by harsh scrubbing, strong chemicals, or heat
  • Needs gentler, surface-focused cleaning to keep its structure intact

Because of this, the method for how to clean memory foam mattress focuses on minimal moisture, mild cleaners, and plenty of drying time.

How do I do a basic clean of a memory foam mattress?

Step 1: Strip the bed

Remove all sheets, protectors, and bedding. Wash them according to their care labels.

Step 2: Vacuum the surface

Use a handheld or upholstery vacuum attachment to remove dust, hair, and crumbs from the entire surface, including seams and edges.
This helps reduce buildup that can cause odors over time.

Step 3: Deodorize with baking soda (optional but helpful)

Lightly sprinkle dry baking soda over the top of the mattress and let it sit for 30–60 minutes.
Then vacuum thoroughly again. Baking soda can help absorb light odors without soaking the foam.

How To Clean Memory Foam Mattress After a Spill or Fresh Stain

When a spill happens, acting quickly matters.

Step 1: Blot, don’t rub

Use a clean, dry cloth or paper towel to gently blot the spill.

  • Press down to absorb liquid
  • Avoid rubbing, which can push moisture deeper into the foam

Step 2: Use a mild cleaning solution

Mix a simple solution in a spray bottle:

  • Cool water
  • A small amount of mild liquid detergent or gentle dish soap

Lightly mist the stained area—do not soak it. Then:

  • Blot with a clean cloth
  • Repeat lightly if needed until the stain starts to lift

Step 3: Rinse lightly

Mist a new cloth with plain water and dab the area to remove soap residue.
Again, keep moisture to a minimum.

Step 4: Air dry completely

Let the mattress dry in a well-ventilated room. If possible:

  • Open windows
  • Use a fan to improve airflow

Avoid placing it in direct, strong sunlight for long periods or using high heat, which may affect the foam.

How do I remove common stains from memory foam?

Can I get rid of sweat or yellowing stains?

Sweat and body oils can leave yellowish discoloration over time. To help with this:

  1. Create a solution of cool water + mild detergent.
  2. Lightly spray the stained area.
  3. Blot gently with a clean cloth.
  4. Rinse lightly with a damp cloth and allow to dry fully.

Some older stains may not fully disappear, but gentle cleaning can reduce their appearance and odor.

What about urine, vomit, or other tough stains?

For tougher organic stains, you can:

  1. Blot as much as possible right away.
  2. Use a mild detergent solution as above.
  3. For lingering odor, once the area is only slightly damp, sprinkle baking soda and leave it for several hours, then vacuum.

If a stain or odor is severe or has soaked deeply into the foam, there may be a limit to how much can be removed at home.

What should I avoid when cleaning a memory foam mattress?

To keep your mattress safe, avoid:

  • Soaking the foam or pouring water directly on it
  • Bleach, strong solvents, or abrasive cleaners
  • Steam cleaning, which can drive moisture deep into the foam
  • Scrubbing aggressively with brushes or rough cloths
  • High heat from hair dryers or heaters

These can damage the foam, affect its feel, or trap moisture inside.

How long does a memory foam mattress take to dry?

Drying time depends on:

  • How much liquid was used
  • Room temperature and airflow
  • Humidity levels

A lightly cleaned spot can dry in a few hours, while a larger spill may take a full day or longer.
Always make sure the mattress feels completely dry—on the surface and just below it—before putting bedding back on.

How often should I clean my memory foam mattress?

For routine care:

  • Vacuum the surface every 1–3 months
  • Spot clean spills immediately
  • Occasionally deodorize with baking soda when changing bedding

Using a removable, washable mattress protector can reduce how often you need to deep-clean the foam itself.

Is it safe to use vinegar or other household cleaners?

A very diluted vinegar solution is sometimes used by consumers for odors, but it can leave a lingering smell and should be applied sparingly, if at all.
Strong multipurpose household cleaners, especially those with harsh chemicals, are best avoided on memory foam because they can be too aggressive.

When in doubt, mild detergent and water in small amounts are the safest general option.

✔️ Quick Mattress Takeaways

Key points consumers should understand about How To Clean Memory Foam Mattress:

  • Use minimal moisture: Lightly mist and blot; never soak memory foam.
  • Blot, don’t scrub: Press with clean cloths to lift spills instead of rubbing.
  • Stick to gentle cleaners: Mild detergent and cool water are usually enough.
  • Avoid harsh methods: No bleach, no steam cleaning, no high heat.
  • Dry thoroughly: Allow plenty of air-drying time before making the bed.
  • Clean regularly, protect daily: Routine vacuuming and a good protector make cleaning easier and less frequent.

With a careful, gentle approach, you can keep a memory foam mattress cleaner, fresher, and more comfortable over time.