How to Clean Memory Foam

Need help maintaining your memory foam mattress? This is the guide for you.

Here we’ll show you exactly how to clean memory foam mattresses to keep it fresher for longer.

Let’s get into it:

Quick Summary: How to Clean Memory Foam

• Spot clean with mild detergent and water

• Deodorise with baking soda

• Never soak or machine wash memory foam

• For accidents, use vinegar and baking soda, then dry thoroughly

Can You Clean Memory Foam?

Yes, memory foam can be cleaned, but it needs to be done carefully.

Its soft, porous nature means it shouldn’t be soaked, machine-washed, or treated with harsh chemicals. 

Doing so could damage the foam’s structure or cause long-term issues like mould or mildew.

Key challenges when cleaning memory foam:

• It absorbs liquids quickly and dries slowly

• Excess water can break down its internal structure

• Harsh cleaners may damage the foam

• Mould and mildew can develop if not dried properly

The good news? With the right approach, you can safely clean and refresh memory foam without ruining it.

How to Clean a Memory Foam Mattress

Memory foam mattresses require special attention due to their size and the fact that they can't always be easily moved for drying. 

Here's a comprehensive approach to cleaning a memory foam mattress:

1. Strip the bed completely: Remove all bedding, mattress protectors, and toppers.

2. Remove stains: Focus on stains and stubborn areas using a mild detergent.

3. Deodorise with baking soda: Sprinkle a thin, even layer of baking soda across the entire mattress surface. For deeper odour removal, you can gently work the baking soda into the mattress with a soft brush.

4. Let it sit: Allow the baking soda to remain on the mattress for at least 6 - 8 hours. This gives it time to absorb odours and moisture.

5. Vacuum again: Thoroughly vacuum all the baking soda from the mattress.

Note: To avoid damaging your mattress avoid using harsh chemicals or solutions like bleach, or soaking with water.

How to Spot Clean a Memory Foam Mattress

For routine maintenance and minor stains, follow these step-by-step spot cleaning instructions that work for most memory foam products.

What You'll Need

• Vacuum cleaner with upholstery attachment

• Mild liquid detergent or dish soap

• Clean white cloths or towels

• Spray bottle

• Lukewarm water

• Baking soda 

• Vinegar

To spot clean specific areas, follow this process:

1. Vacuum thoroughly: Vacuum all surfaces, including sides and seams, where dust and allergens tend to collect.

2. Clean and Deodorise: Use a mild detergent mixed with lukewarm water and dab it onto the affected area. 

3. Blot: Use a clean cloth to blot the affected area. Do not allow it to soak.

4. Air dry: Thoroughly air dry your mattress before use.

How to Clean Memory Foam After Accidents (Urine, Vomit, or Spills)

Quick action is key to preventing long-term damage:

Step-by-Step Emergency Clean-Up

1. Blot immediately – Use dry towels to absorb as much moisture as possible

2. Neutralise odours – Mix equal parts white vinegar and cold water in a spray bottle and lightly mist the affected spot

3. Blot again – Press firmly with a clean towel

4. Apply baking soda – Cover the area and leave it for 8–10 hours

5. Vacuum thoroughly – Remove all traces of baking soda once dry

6. Air dry – Ensure the mattress is 100% dry before putting sheets back on

If the foam is heavily saturated or smells linger, consider using an enzymatic cleaner or replacing the mattress.

Cleaning Memory Foam Pillows, Toppers, and Accessories

To clean smaller memory foam items, follow these steps:

Memory Foam Pillows

Check the care label; some newer memory foam pillows have removable, washable covers or are designed to be machine-washable. 

If the pillow is not labelled as machine washable then spot-clean only.

Memory Foam Toppers

Take the topper off the mattress and place it on a flat, clean surface. 

Clean both sides and follow the spot cleaning procedures for both surfaces. 

Due to their size, toppers can be challenging to dry, so consider hanging them over a shower rod or laying them across multiple chairs to allow airflow on all sides. 

Every few hours, reposition the topper to ensure even drying.

Can You Deep Clean Memory Foam?

Not in the traditional sense.

You should never soak or steam-clean memory foam. Instead, perform deep spot cleaning and full surface deodorising as needed.

Note: Full water immersion is not suitable for memory foam and may damage the integrity of the material.

Deep Cleaning Alternatives

• Professional cleaning services: Some specialised cleaning services offer dry cleaning methods for memory foam.

• Fabric-safe disinfectant sprays – ideal for occasional sanitising, especially during illness

Tips for Mattress Protection

The best way to clean a memory foam mattress is to prevent any significant spills or damage. 

You can do it in various ways, including:

• Use a waterproof mattress protector to prevent sweat, spills, and allergens

• Rotate your mattress every 3–6 months to even out wear

• Air out your mattress by stripping it a few times a year in a well-ventilated room

• Vacuum monthly to remove dust and debris from the surface

Frequently Asked Questions

Can memory foam be washed?

No, avoid machine washing or soaking. Stick to spot cleaning and air drying.

Is memory foam ruined if it gets wet?

If dried promptly, light moisture won’t ruin it. Deep soaking, however, can cause permanent damage.

How do I remove odours from memory foam?

Spray lightly with a 50/50 white vinegar and water mix, then cover with baking soda. Let it sit for 8 hours or more, then vacuum.

How do I clean urine from a memory foam topper?

Blot immediately, use vinegar spray, blot again, then apply baking soda. Vacuum once fully dry. Enzymatic cleaners may help with older stains.

What not to use on memory foam?

Avoid bleach, ammonia, steam, hot water, hair dryers, or any harsh cleaning agents that could degrade the foam’s structure.