Close this search box.

How to Get Rid of Black Mold on Mattress?

Black mold, scientifically known as Stachybotrys chartarum, is a common yet harmful household issue that can affect various surfaces, including mattresses. Not only does it cause unsightly stains and odors, but it can also pose health risks to you and your loved ones.

In this post, we will explore effective methods to get rid of black mold from your mattress while ensuring your safety and the longevity of your bedding.

Table of Contents

What causes black mold on mattress?

Understanding the causes is essential for preventing and addressing mold infestations on your mattress. Here are the primary factors that contribute to the formation of black mold on mattresses:

1. Moisture Accumulation

Closeup of mold on mattress

When mattresses are exposed to excess moisture, whether from spills, leaks, or excessive humidity in the environment, it creates a damp surface that mold spores can thrive on.

The porous nature of mattresses allows moisture to penetrate deep within the material, providing an ideal breeding ground for mold growth.

2. Poor Ventilation

Inadequate airflow in your bedroom can exacerbate mold growth on your mattress. When air circulation is limited, moisture tends to linger, creating a damp environment that encourages mold to flourish.

3. High Humidity Levels

High humidity levels can contribute to mold growth on mattresses. Humidity levels above 60% provide the moisture necessary for mold spores to germinate and multiply.

If your sleeping environment consistently has high humidity, it can facilitate the development of mold colonies on your mattress.

4. Lack of Sunlight Exposure

Natural sunlight has disinfectant properties that inhibit the growth of mold. When mattresses are kept in dimly lit or dark spaces, it prevents the sanitizing effects of sunlight from reaching and neutralizing mold spores.

5. Spills and Stains

Spilled red wine on the mattress

Any spills or stains on your mattress, especially those containing organic materials like food or bodily fluids, can serve as nutrients for mold growth.

Mold feeds on organic matter, so any residue left behind by spills provides a suitable food source for mold to thrive.

6. Delayed Cleaning

Neglecting regular cleaning and maintenance of your mattress can contribute to mold growth. Dust, dead skin cells, and other debris accumulate on mattresses over time.

If these contaminants become moist, they create an environment that encourages mold spores to settle and proliferate.

7. Contaminated Surroundings

If your sleeping area is located in a space that has a history of water leaks, flooding, or dampness, the likelihood of mold spores being present is higher.

Mold spores can easily find their way onto your mattress and start growing if the surrounding environment is contaminated.

8. Poor Quality Mattress Protector

While mattress protectors can help prevent moisture from reaching your mattress, poor-quality protectors may trap moisture and create a conducive environment for mold growth.

Using a high-quality, breathable, and waterproof mattress protector can be effective in keeping your mattress dry and mold-free.

How to Remove Black Mould from Your Mattress?

Here’s a step-by-step guide on how to safely remove black mold from your mattress:

Step 1: Safety First

Before you begin the cleaning process, you need to ensure your safety by wearing appropriate protective gear, including gloves, a mask, and eye protection. This will prevent direct contact with mold spores and mycotoxins, which can be harmful to your health.

Step 2: Isolate the Mattress

Remove the affected mattress from your bed and place it in a well-ventilated area. If weather permits, you can consider placing it outdoors to minimize the spread of mold spores to other areas of your home.

Step 3: Vacuuming

Using a vacuum cleaner equipped with a HEPA filter, gently vacuum the entire surface of the mattress. This will help remove loose mold spores and prevent them from becoming airborne during the cleaning process.

Dispose of the vacuum bag or clean the vacuum’s canister outside to prevent mold spores from re-entering your living space.

Step 4: Vinegar Solution

Create a solution by mixing equal parts of white vinegar and water in a spray bottle. Lightly mist the affected areas of the mattress with the vinegar solution.

Vinegar’s natural acidity can help break down mold and inhibit its growth. Allow the solution to sit for about 15 minutes.

Step 5: Scrubbing

Using a clean cloth dampened with the vinegar solution, gently scrub the mold-infested areas of the mattress. Focus on areas with visible mold stains. Be thorough but gentle to avoid damaging the mattress material.

Step 6: Baking Soda Paste

Using Hydrogen Peroxide to clean mod in mattress

For persistent mold stains, you need make a paste by mixing baking soda with water. Apply the paste to the affected areas and gently scrub with a soft brush.

Baking soda’s abrasiveness will assist in lifting stubborn mold stains. Allow the paste to sit for a few hours.

Step 7: Sunlight Exposure

Natural sunlight is a potent mold deterrent. Place the mattress in direct sunlight for several hours. The ultraviolet (UV) rays of the sun have sanitizing properties that can help eliminate mold spores and prevent regrowth.

Step 8: Drying Thoroughly

After sunlight exposure, you should ensure the mattress is completely dry before returning it to your bed.

Mold thrives in damp environments, so thorough drying is crucial to prevent mold from coming back.

Step 9: Consider a Mold Cleaner

Mold Cleaner

If the mold persists, you can consider using a commercial mold cleaner that is safe for fabrics. Follow the manufacturer’s instructions carefully and ensure proper ventilation during and after cleaning.


Can mold on my mattress make me sick?

Yes, mold exposure can lead to various health issues, especially for individuals with allergies or respiratory conditions.

Are memory foam mattresses prone to mold?

Memory foam mattresses can be more susceptible to mold growth if exposed to moisture. Follow proper maintenance to prevent mold.

Can I use bleach to remove black mold from my mattress?

While bleach is effective against mold, it’s not recommended for mattresses due to its harshness and potential damage to fabric. Opt for safer alternatives like hydrogen peroxide.

Can I save my mattress if the mold infestation is severe?

In severe cases, it might be best to replace the mattress. Mold that has deeply penetrated the mattress is challenging to fully eliminate.

Are natural remedies like vinegar effective against black mold?

Vinegar can help kill some types of mold, but it might not be as effective against black mold. Hydrogen peroxide is a better option.

How often should I clean my mattress to prevent mold?

You can clean your mattress at least twice a year but consider doing it more frequently if you live in a humid environment.

Is it possible to prevent mold growth in humid climates?

Yes, it is possible to prevent mold growth in humid climates. Some ways to prevent mold growth include controlling moisture levels, improving ventilation, using dehumidifiers or air conditioners, and regularly cleaning and inspecting the area for any signs of mold.

Is mold on a mattress dangerous?

Yes, mold on a mattress can be dangerous. Mold releases spores into the air which can cause respiratory problems, allergies, and other health issues. 

Additionally, prolonged exposure to mold can weaken the immune system and lead to more serious health complications.


Removing black mold from your mattress is a task that requires diligence and care. By following the steps outlined in this guide, you can ensure that your mattress is clean, mold-free, and conducive to a good night’s sleep.

Remember that your health is a priority, so if the mold infestation is extensive or persistent, you should consider seeking professional help for thorough remediation.

Author: Jessica

Jessica is a lover of both life and gardening. She loves to share his passion for both on social media. He often posts about his latest gardening projects, as well as tips and tricks for others who might be interested in starting their own gardens. She also frequently posts about the different aspects of his life that he enjoys, from spending time with friends and family to exploring new places.

Keep in mind that we may receive commissions when you click our links and make purchases. However, this does not impact our reviews and comparisons. We try our best to keep things fair and balanced, in order to help you make the best choice for you.

As an Amazon Associate, I earn from qualifying purchases.