
Removing unpleasant odors from a mattress is a multi-step process that often involves cleaning the surface, using natural or chemical odor eliminators, and ensuring proper ventilation. A common method includes vacuuming the mattress, spot-cleaning stains, sprinkling baking soda over the surface, leaving it for several hours, then vacuuming it off. Additionally, allowing the mattress to air out and using a waterproof or antimicrobial mattress protector can prevent future odors.
Understanding Mattress Odors
Before diving into the removal process, it’s essential to understand what causes odors in mattresses. Common sources include sweat, body oils, spills, urine, and pet accidents. Moreover, new mattresses often emit a chemical smell known as off-gassing, which is the release of volatile organic compounds (VOCs) from the manufacturing materials.
Identifying the Type of Odor
The first step in odor removal is identifying the smell’s source. This will determine the most effective cleaning method. Body odors and spilled substances, for example, require different approaches from mustiness caused by a damp environment.
Simple Steps to Deodorize a Mattress
Removing smells from a mattress can be a relatively simple process if the right steps are followed. Here’s a detailed walkthrough:
Our Top 5 Mattress Picks
Updated September 2026EGOHOME 8-Inch Green Tea Memory Foam Mattress, Full, Medium Firm
Best for most bedrooms. A medium-firm green tea memory foam mattress with a cooling gel layer, delivered rolled in a box.
- Full size, 8 in
- Medium firm
- Cooling green tea gel
- CertiPUR-US, fiberglass free
OhGeni Queen Air Mattress with Built-in Pump, 18-Inch Raised
Best for guests and camping. Inflates in about three minutes with the built-in pump and sits 18 inches off the floor, so it feels like a real bed.
- Queen, 18 in raised
- Built-in pump
- 800 lb capacity
- Waterproof PVC
Novilla 6-Inch Gel Memory Foam Mattress, Twin
Best budget twin. A slim gel memory foam twin that suits kids' rooms, bunk beds and trundles where a thick mattress won't fit.
- Twin, 6 in
- Gel memory foam
- Cooling
- CertiPUR-US
Zinus 8-Inch Green Tea Memory Foam Mattress, Twin
Best-known brand. Zinus's long-running green tea foam design in twin size, with both CertiPUR-US and OEKO-TEX certified materials.
- Twin, 8 in
- Green tea memory foam
- CertiPUR-US & OEKO-TEX
GAESTE 8-Inch Cooling Gel Memory Foam Mattress, Full, Medium Feel
Best for hot sleepers. Cooling gel memory foam with a medium feel, plus a machine-washable, anti-slip cover you can actually clean.
- Full size, 8 in
- Medium feel
- Cooling gel foam
- Washable cover
- Fiberglass free
Vacuuming the Mattress
Begin by stripping the bed and vacuuming the entire surface of the mattress with an upholstery attachment. This will remove dust, dead skin cells, and other debris that can contribute to odors.
Spot Cleaning Stains
Any visible stains should be spot cleaned with a gentle cleaning solution. You can make a homemade solution by mixing equal parts of water and white vinegar, applying it to the stain, and blotting it gently with a clean cloth. Avoid soaking the mattress, as lingering moisture can lead to mold and mildew.
Deodorizing with Baking Soda
After spot cleaning, liberally sprinkle baking soda over the entire surface of the mattress. Baking soda is a natural odor absorber. For extra freshness, you can mix a few drops of essential oil like lavender or eucalyptus with the baking soda before applying.
Allow the baking soda to sit for at least several hours, or even better, overnight. This gives it ample time to absorb odors. Once the time is up, vacuum the mattress again to remove the baking soda.
Air Out the Mattress
If possible, take the mattress outside in a clean, dry area and let it sit in the sun for a few hours. UV rays and fresh air are natural disinfectants and can help eliminate any remaining odors.
Using Mattress Cleaners and Deodorizers
If the smell persists, consider using an enzyme-based cleaner or a commercial mattress deodorizer, following the manufacturer’s instructions to ensure you don’t damage the mattress materials.
Special Considerations for Specific Odors
Depending on the type of odor, you might need to take a different approach:
Removing Smoke Odor
For smoke smells, activated charcoal is a potent odor absorber. Place bowls of activated charcoal around the mattress or inside pillowcases placed on the mattress.
Eliminating Pet Odors
For pet-related odors, an enzyme cleaner designed for pet stains will help break down odor-causing substances.
Dealing with Mildew Smell
For a mildewy mattress, it might be necessary to use a solution of water and antifungal cleaning agents, but take care to ensure the mattress is completely dry afterward.
An Ounce of Prevention
Prevention is key to keeping your mattress smelling fresh. Use a good quality mattress protector to act as a barrier against spills, sweat, and oils. Regularly change sheets and vacuum the mattress to prevent the buildup of materials that can lead to odors.
Opt for Antimicrobial Protectors
Consider investing in a protector with antimicrobial properties to reduce the likelihood of mold and bacteria growth, which can cause odors.
Regular Maintenance
Regular maintenance, such as airing out the mattress and occasionally deodorizing with baking soda, can keep your mattress fresh.
When to Seek Professional Help
If the odor persists despite thorough cleaning, or if you’re dealing with a particularly difficult smell like urine or vomit, it might be time to call in professional mattress cleaners. They have the expertise and equipment to deep-clean mattresses without leaving them damp or damaged.
Finishing Thoughts
Eliminating smells from a mattress is essential for a clean and hygienic sleep environment. It can often be achieved with common household products like vinegar, baking soda, and sunlight. For tougher jobs, don’t hesitate to seek professional advice. With consistent care and preventative measures like using mattress protectors and regular cleaning, your mattress can remain fresh and odor-free for years to come. Remember that your sense of smell is as important to a good night’s sleep as a supportive mattress, so don’t neglect it in your cleaning routine.
