Is your mattress looking a little less than fresh? Over time, mattresses can accumulate dirt, sweat, and odors, leading to an unsightly appearance and a less inviting sleep environment. If you’ve been putting off deep cleaning it, a simple homemade spray can make a significant difference.
This easy DIY solution helps lift common stains and refresh your sleeping space, tackling those lingering odors and bringing back that clean feeling. It’s a practical and often more affordable alternative to professional cleaning, and you likely have most of the ingredients under your sink already!

What You’ll Need
Ingredients
- ½ cup baking soda
- 1-2 tablespoons liquid dish soap (mild, clear or light-colored is best)
- 2 cups warm water
Tools
- Large mixing bowl
- Spoon or whisk
- Empty spray bottle (at least 20-ounce capacity)
- Clean white towels or microfiber cloths
- Vacuum cleaner with an upholstery attachment
Why This DIY Can Be Useful
This DIY combines ingredients known for their cleaning and deodorizing properties. Baking soda is a natural deodorizer and mild abrasive that helps absorb odors and break down stains. Liquid dish soap acts as a gentle surfactant, helping to lift and emulsify dirt and oil from the mattress fibers. Warm water helps to dissolve the ingredients and facilitate deeper cleaning, making it an effective combination for a quick refresh without harsh chemicals.
How to Make It
- In your large mixing bowl, combine the ½ cup of baking soda with the 2 cups of warm water.
- Stir well with a spoon or whisk until the baking soda is mostly dissolved. Some small granules might remain, which is okay.
- Add 1-2 tablespoons of mild liquid dish soap to the mixture. Stir gently to combine, avoiding excessive sudsing.
- Carefully pour the solution into your clean spray bottle. Close the bottle tightly.
How to Use It
- Prepare Your Mattress: First, remove all bedding. Vacuum your entire mattress thoroughly using the upholstery attachment to remove dust mites, dead skin cells, and loose debris.
- Spot Treat Stains: If you have specific, visible stains, spray a small amount of the solution directly onto the stain. Let it sit for about 5-10 minutes.
- Blot the Stains: Using a clean white towel, blot the treated stains firmly. Do not rub, as this can spread the stain. Repeat spraying and blotting if needed until the stain lightens.
- General Refresh: For an overall refresh, lightly mist the entire surface of your mattress with the cleaning solution. Avoid oversaturating.
- Allow to Dry: Let the mattress air dry completely. This can take several hours, so it’s best to do this on a day when you can leave your mattress uncovered. Opening windows and using a fan can speed up the drying process.
- Final Vacuum: Once completely dry, give your mattress another light vacuum to remove any remaining baking soda residue.
What to Expect
This DIY deep clean can significantly improve the freshness and appearance of your mattress. You should notice a reduction in odors and a lightening of many common stains. While it may not remove every deep-set or old stain completely, it will certainly make your mattress feel cleaner and more hygienic, contributing to a more pleasant sleeping environment.
Helpful Tips
- Test in an Inconspicuous Area: Before applying the solution widely, always test a small, hidden area of your mattress to ensure no discoloration or damage occurs.
- Sunlight is Your Friend: If possible, let your mattress air dry in a sunny room. Sunlight has natural deodorizing and disinfecting properties.
- Flip and Rotate: When you’re cleaning, it’s a great time to flip or rotate your mattress according to the manufacturer’s recommendations, helping to prolong its life.
- Regular Maintenance: For best results, consider doing a light vacuuming and a quick baking soda sprinkle (let sit for 30 minutes, then vacuum) on your mattress every few months.
Important Notes / Safety
- Always ensure your mattress is completely dry before putting sheets back on or making the bed. Moisture trapped in the mattress can lead to mold and mildew growth.
- Do not over-saturate the mattress with the solution, as too much liquid can damage the foam or inner springs and make drying difficult.
- If you have a memory foam mattress, be particularly careful with moisture, as memory foam can be slow to dry and susceptible to mold. Use a very light mist.
- For severe or persistent stains, professional mattress cleaning may be necessary. This DIY is best for routine refreshing and lighter stains.



