How to Clean a Mattress and Remove Odors?

Your mattress is one of the most heavily used items in your home, yet it is often the most neglected. Night after night, it quietly absorbs sweat, body oils, dead skin cells, dust mites, and microscopic debris. Over time, this buildup leads to lingering odors and a less-than-fresh sleeping environment.

Knowing how to properly clean, deodorize, and refresh your mattress safeguards your sleep hygiene and revitalizes your bedroom.



Quick answer: the best way to freshen a mattress

The most effective way to refresh a mattress involves three simple steps:

• Vacuum Thoroughly: Strip the bed and run a clean vacuum attachment across every square inch of the surface, seams, and tufts to pull up loose dust and allergens.
• Spot Clean Stains: Target blemishes gently using minimal moisture and appropriate stain-fighting solutions.
• Deodorize and Air Out: Cover the surface with baking soda to neutralize trapped odors, let it sit, vacuum it away, and allow the mattress to air out fully before remaking the bed.

Why mattresses need regular cleaning

Dust, sweat, body oils, dead skin, and odor buildup

An average person sheds millions of microscopic skin cells every week, accompanied by pints of sweat and natural body oils over the course of a year. Because mattresses lack washable outer layers, these organic particles seep deep into the padding, feeding dust mites and creating stubborn odors.

Why mattress cleaning supports a cleaner bedroom

Maintaining a clean sleep surface drastically reduces airborne bedroom allergens, keeping your entire sleeping quarters fresher. (For broader bedroom maintenance tips, explore our guides on how to dust a house properly and our comprehensive deep house cleaning checklist).

Step-by-step mattress cleaning routine

Strip bedding and wash sheets, pillowcases, and mattress protectors

Remove all pillows, blankets, sheets, and mattress pads. Toss washable linens into the laundry immediately.

Best water temperature considerations for bedding labels

Check your bedding tags, but generally, washing sheets and pillowcases in hot water is best for killing dust mites and breaking down trapped body oils.

Vacuum the top, sides, seams, and edges

Attach your vacuum's upholstery tool to systematically clean the top panel, vertical sides, piping seams, and corners where dust and pet hair love to accumulate.

How to use upholstery attachments effectively

Move the vacuum attachment in slow, overlapping straight lines. Use the nozzle crevice tool to press deeply into quilted button depressions and stitched channels.

Treat stains based on the stain type

• Sweat Stains: Mix equal parts hydrogen peroxide, dish soap, and warm water in a spray bottle, mist lightly, blot with a clean cloth, and let dry.
• Urine or Pet Accidents: Spray an enzymatic cleaner onto the spot to break down organic proteins, let it dwell, and press firmly with dry towels to absorb moisture.
• Food or Drink Spills: Dab gently with cold water and a drop of mild dish soap, working from the outside in.

Remove odors with safe deodorizing steps

Generously sprinkle plain baking soda evenly across the entire top surface of the mattress. Baking soda is a natural, non-toxic deodorizer that pulls lingering moisture and trapped odors out of deep fabric layers. Let it sit for at least 45 to 60 minutes before vacuuming it up completely.

Air out the mattress before making the bed again

Keep bedroom windows cracked or turn on ceiling fans to encourage maximum airflow, ensuring any hidden moisture evaporates before you put clean sheets back on.

How often should you clean a mattress?

• Monthly Maintenance: Strip the bed, vacuum the surface, and refresh with baking soda every four to six weeks.
• Seasonal Deeper Cleaning: Perform a comprehensive inspection, spot-cleaning session, and airing-out routine at least 2 to 4 times a year.
• Homes with Pets, Allergies, or Children: Increase your vacuuming and deodorizing schedule to bi-monthly if pets sleep on the bed or family members suffer from indoor allergies.

Common mattress cleaning mistakes

• Using Too Much Water: Soaking a mattress can saturate internal memory foam or inner-spring coils, encouraging mold and mildew growth that is nearly impossible to reverse.
• Applying Strong Fragrances Instead of Removing Odor Sources: Masking smells with heavy perfumes or febreeze doesn't eliminate the underlying sweat or allergen source; it only covers it up temporarily.
• Putting Sheets Back On Too Soon: Making the bed while the mattress is still slightly damp traps humidity, creating a breeding ground for bacteria and odors.

When professional cleaning routines help

Recurring house cleaning for bedrooms, dust, bedding areas, and high-touch surfaces

While you manage your mattress care, keeping the rest of your bedroom environment pristine requires consistent effort. Partnering with a professional recurring house cleaning service keeps bedroom baseboards, window ledges, furniture, and flooring free of dust and allergens, supporting a healthier overall home.

FAQ

How do you clean a mattress without a machine?

If you don't have a vacuum cleaner, you can clean a mattress by vigorously brushing down the surface with a stiff, clean broom or a dry upholstery brush, wiping it down with a damp cloth, and applying baking soda to absorb odors.

How do you remove odors from a mattress?

Baking soda is the most effective natural odor eliminator for mattresses. Sprinkle a generous layer across the bed, let it absorb odors for an hour, and vacuum it thoroughly.

Can you use baking soda on a mattress?

Yes. Baking soda is completely safe for all standard mattress types. It acts as a gentle, non-toxic deodorizer that neutralizes acidic odors without damaging fabric covers.

How long should a mattress air out after cleaning?

A mattress should typically air out for at least 1 to 3 hours after cleaning or spot-treatment. If you used a liquid solution or enzymatic cleaner, ensure it is completely dry to the touch before making the bed.