How To Deep Clean a Mattress Easily Using Baking Soda

Abbie M
by Abbie M
7 Materials
1 Day

When was the last time you cleaned your mattress?icon

My mattress was discolored from my dark sheets and a few spills so I decided it was time for a thorough clean! Here's how to deep clean a mattress at home using baking soda and a few other common household items:

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Tools and materials:

Stripping the bed

1. Strip the bed

Begin by stripping your bed of all comforters, pillows, and sheets. Throw them in the washing machine.

Vacuuming the mattress

2. Vacuum the mattress

After that, vacuum the mattress.

After I vacuumed, I grabbed a scrub brush and went over the mattress one more time before proceeding to get into all of the grooves of the mattress - but this is an optional step.

Cleaning the mattress with baking soda

3. Sprinkle baking soda

Next, grab a box of baking soda and sprinkle it onto the mattress. Use a scrub brush to set in the baking soda & cover the whole mattress. You may use 1-2 boxes depending on how big your mattress is.

Let the baking soda sit for at least 10 minutes. This will deodorize as well as soak up any oils that collect in the mattress over time.

Using a scrub brush to remove the baking soda

4. Vacuum or scrub

After that, vacuum or use a scrub brush to remove the baking soda.

Making a clear dish soap solution

5. Make a clear dish soap solution

Grab a spray bottle and fill it with water. Add 1 tbsp of CLEAR dish soap. You will want to use clear instead of colored dish soap to ensure that you won't stain the mattress further.

Shake the spray bottle to mix the mixture.

Pouring the clear dish soap solution into a spray bottle

Spraying the mattress with clear dish soap solution

6. Spray the mattress

Next, spray an even coat of the mixture on the mattress. Check for dry spots to make sure it's all covered. You want to make sure the mattress is covered as evenly as possible for an even deep clean & to avoid discoloration.

Mixing a water and hydrogen peroxide solution

7. Spray water and hydrogen peroxide

After that, fill a spray bottle with half water and half hydrogen peroxide. Then, spray an even coat of that on the mattress as well.

Spraying the water and hydrogen peroxide

Sprinkling the baking soda

8. Sprinkle more baking soda

Following that, sprinkle some more baking soda on the mattress and rub it into the two mixtures lightly with a white towel.

Using a white towel to rub the mixture

Again, make sure the towel you use is white so that no color will bleed onto the mattress.

Repeating the cleaning process

9. Repeat (optional)

I then sprayed one more coat of the hydrogen peroxide mixture & one more sprinkle of baking soda to make sure it was all coated. But this is optional.

Let the mixture dry. This will take a few hours or overnight depending on how damp the mattress is.

How to clean a mattress

10. Vacuum again

After drying, vacuum or scrub brush the mattress until there's no more residue.

Flip the mattress and repeat if necessary.

How to treat stains on a mattress

This mixture did the trick for my mattress, but if you have any tricky mattress stains you can mix 1/4 cup of hydrogen peroxide with 1 tbsp of dish soap and 1 tbsp of table salt. Spread on the stain and let sit. Scrape off excess with a WHITE rag dipped in hydrogen peroxide.

Finally, add your washed bedding back onto your bed! You can also add a mattress cover for extra protection.

How to deep clean a mattress

How to deep clean a mattress

I was amazed at how well these 4 simple ingredients cleaned my mattress! It looks good as new! icon icon

I hope this inspires you to give your mattress the deep clean it deserves! Let me know how this method worked for you in the comments below.

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Frequently asked questions
Have a question about this project?
3 of 16 questions
  • Tish Tish on Nov 24, 2019

    would this work for a 4” memory foam topper?

  • Donna Donna on Nov 25, 2019

    Will this work on a memory foam mattress

  • Lyn Lyn on Dec 07, 2019

    Does this work on memory foam? My m f mattress has a fabric cover that's stained. (I eat in bed while watching tv.) No way can I pick up the mattress to get the cover off.

Join the conversation
2 of 69 comments
  • KAREN KAREN on Jan 30, 2022

    A good mattress pad will eliminate this project entirely. There are even waterproof mattress pads. Throwing the mattress pad into a big front loader machine will clean up sweat/stains easily.

  • Betty Betty on Dec 04, 2023

    Thank you for your advice on how to clean your mattress. I am going to try it myself.

    I only hope I can do it. I am older in my late 60’s and have had 6 back surgeries.

    Thank You

    That was so nice of you to share that with all of us!