As an affiliate, we may earn a commission from qualifying purchases. We get commissions for purchases made through links on this website from Amazon and other third parties.
A heavily stained mattress can often be improved with careful spot cleaning, but it should not be soaked. Remove the bedding, vacuum the surface, treat each stain with a small amount of suitable cleaner, blot away moisture, and let the mattress dry completely before remaking the bed.
Check the mattress care label and manufacturer guidance first. Some materials, including foam and natural fillings, can be damaged by excess water, strong chemicals, steam, or heat.
What You Will Need
Gather a few basic cleaning supplies:
- Vacuum with an upholstery attachment
- Clean white cloths or plain paper towels
- A soft-bristle brush
- Spray bottle
- Mild liquid dish soap or laundry detergent
- Baking soda
- Cool or lukewarm water
- Enzyme cleaner for urine, vomit, or other body-fluid stains
- Waterproof gloves
- A fan or dehumidifier, if available
Use white cloths when possible. Colored towels may transfer dye onto the mattress.
Before You Start
Check whether the mattress can be saved
Cleaning may not be the best choice when the mattress has:
- Deep mold growth
- A strong odor that remains throughout the mattress
- Large areas soaked with sewage or floodwater
- Filling that is wet deep inside
- Damage from strong chemicals
- Crumbling foam, torn fabric, or exposed springs
A mattress with widespread mold or unsafe contamination may need professional advice or replacement. Surface cleaning will not reliably fix material that is contaminated deep inside.
Read the care instructions
Look for a care label on the mattress. You can also check the current manufacturer guidance for your model.
Do not assume that a cleaning method is safe for every mattress. Memory foam, latex, wool, cotton, springs, and other fillings react differently to moisture and heat.
Open the room
Open windows if the weather allows. Keep air moving with a fan. Good airflow helps cleaning moisture leave the mattress faster.
Keep children and pets away from the work area until the mattress is clean and fully dry.
How to Clean a Heavily Stained Mattress
1. Strip the bed
Remove all sheets, protectors, mattress pads, blankets, and pillowcases.
Wash washable bedding according to its care label. Do not put stained bedding back on the mattress until both the bedding and mattress are clean and dry.
Check the underside of the mattress, the bed frame, and the floor beneath the bed. A spill may have passed through or spread beyond the visible area.
2. Vacuum the whole mattress
Vacuum the top, sides, seams, and edges. Pay special attention to stitched areas where dust, crumbs, hair, and dry debris collect.
Vacuuming first keeps loose dirt from turning into mud when cleaner is added.
Use gentle suction around delicate fabric, tufting, buttons, or piping. Do not press a hard vacuum attachment deeply into soft foam.
3. Identify the stains
Different stains may need different treatment. Common mattress stains include:
- Sweat and body oils
- Urine
- Blood
- Vomit
- Food and drinks
- Dirt or mud
- Pet accidents
- Makeup
- Unknown yellow or brown marks
Treat one small area at a time. When several types of stains overlap, start with the mildest cleaning method.
4. Test the cleaner
Test your cleaner on a hidden part of the mattress, such as a lower side panel.
Apply a very small amount. Wait for it to dry, then check for fading, discoloration, texture changes, or damage.
Do not continue if the fabric changes color or feels weakened.
5. Blot fresh moisture
For a fresh spill, place a clean cloth or paper towel over the area and press firmly.
Lift the cloth and repeat with a dry section. Do not rub. Rubbing can spread the stain and push liquid deeper into the mattress.
Work from the outside edge toward the center. This helps keep the stain from growing.
6. Use a mild cleaning solution
For many general stains, mix:
- About 2 cups of cool or lukewarm water
- A small amount of mild dish soap or liquid laundry detergent
The solution should be lightly soapy, not full of thick foam.
Dampen a cloth with the solution. Do not pour it onto the mattress. Blot the stained area, then use a second cloth lightly dampened with plain water to remove soap residue.
Finish by pressing dry towels onto the area.
7. Treat each stain by type
How to Remove Common Mattress Stains
Sweat and yellow stains
Sweat, body oil, lotions, and moisture can leave yellow or brown areas over time.
Start with the mild soap solution. Blot the stain gently and let the area dry. Repeat if needed rather than using a large amount of cleaner at once.
Old yellowing may not disappear fully. A remaining color mark does not always mean the area is still dirty.
Avoid chlorine bleach unless the mattress manufacturer specifically allows it. Bleach can weaken fabric, damage foam, and leave strong fumes.
Urine stains
Blot fresh urine first. Then use an enzyme cleaner labeled as suitable for upholstery or mattresses.
Enzyme cleaners are made to break down organic residue. Follow the product directions carefully, including the stated contact and drying times.
Do not flood the mattress. Apply enough to treat the surface stain without soaking the filling.
For older urine marks, more than one light treatment may be needed. Let the mattress dry fully between treatments.
Do not mix an enzyme cleaner with bleach, ammonia, vinegar, or another cleaning product.
Blood stains
Use cool water. Hot water can make a blood stain harder to remove.
Blot with a cloth lightly dampened with cool water. If the mark remains, use a small amount of mild detergent solution and blot again.
Work slowly. Scrubbing may spread the stain or damage the mattress cover.
Hydrogen peroxide is sometimes used on blood stains, but it can discolor fabric and affect some mattress materials. Check the manufacturer guidance and test a hidden area before considering it.
Vomit stains
Remove any solid material with a spoon or dull scraper. Do not press it into the fabric.
Blot the area with cool water, then apply an enzyme cleaner that is suitable for the mattress material. Follow the label directions.
Ventilate the room well. Repeat lightly after the first treatment has dried if odor or staining remains.
Food and drink stains
Lift away crumbs or dried material before adding moisture.
For most food and drink stains, start with mild soap and water. Blot from the outside inward.
Brown stains on a mattress can come from sweat, body oils, urine, old blood, drinks, rust, or trapped moisture.
Sugary drinks can leave a sticky residue. Use a second cloth lightly dampened with plain water to remove remaining soap and sugar.
For oily food, a small amount of dish soap may help. Use as little liquid as possible.
Dirt and mud
Allow wet mud to dry before cleaning. Vacuum or gently brush away the dry material.
Blot the remaining mark with mild soap solution. Avoid rubbing, which can push dirt farther into the fabric.
Pet stains
Blot fresh moisture and use an enzyme cleaner suitable for upholstery.
Keep pets away until the cleaner has dried fully. Check the cleaner label for any pet-related use instructions.
Pet hair should be vacuumed before wet cleaning. Otherwise, damp hair may stick to the mattress fabric.
Makeup stains
Remove loose powder with a vacuum rather than wiping it.
For liquid makeup, blot with mild soap solution. Oil-based products may need several light treatments.
Avoid makeup remover, acetone, or strong solvents unless the mattress manufacturer clearly says they are safe. These products can damage fabric, foam, adhesives, or printed patterns.
Unknown stains
Start with cool water and mild soap.
Do not combine several cleaners in the hope that one will work. Mixing products can damage the mattress or create unsafe fumes.
Apply one cleaner, blot it away, and let the area dry before trying another approved method.
How to Clean a Mattress With Many Stains
When stains cover a large part of the mattress, divide the surface into small sections.
Clean one section at a time:
- Vacuum the section.
- Treat visible stains.
- Blot with a barely damp cloth.
- Press with dry towels.
- Move to the next section.
- Let the whole mattress dry with strong airflow.
Do not spray the entire mattress until it feels wet. Mattresses are thick and may hold moisture for a long time. Trapped moisture can lead to odors and material damage.
A soft brush can help lift surface dirt from durable woven fabric. Use light pressure. Do not scrub foam, delicate quilting, tufting, or damaged fabric.
How to Deodorize the Mattress
Once the cleaned areas are only slightly damp or fully dry, sprinkle a thin layer of baking soda over the mattress.
Leave it in place for several hours, or as long as practical. Then vacuum it up slowly.
Baking soda may help absorb some surface odor and moisture. It will not remove deep contamination or fix mold inside the mattress.
For strong odors, repeat the stain treatment that matches the source. Covering an odor with perfume or fabric spray may make the room smell different without removing the cause.
How to Dry the Mattress Properly
Drying is one of the most important parts of mattress cleaning.
To speed up drying:
- Stand the mattress on its side when the manufacturer allows it.
- Open windows in dry weather.
- Aim a fan across the surface.
- Run a dehumidifier in the room.
- Keep sheets and protectors off.
- Turn the mattress only if its construction allows turning.
Do not remake the bed while any part feels cool, damp, or clammy.
Avoid using a hair dryer, space heater, iron, or other direct heat source. High heat can damage foam, fabric, glue, and other mattress materials.
Steam cleaning is also not suitable for every mattress. It introduces heat and moisture that may remain inside the filling. Check the manufacturer guidance before using a steam machine or hiring a cleaning service.
What Not to Use on a Mattress
Avoid these common mistakes:
Do not soak it
More cleaner does not mean better cleaning. Too much water can carry the stain deeper and make the mattress difficult to dry.
Do not mix cleaning products
Never mix bleach with ammonia, vinegar, alcohol, enzyme cleaner, or other household cleaners. Use one product at a time and follow its label.
Do not scrub hard
Hard scrubbing can spread stains, create fuzzy fabric, loosen stitching, and damage the mattress cover.
Do not cover damp areas
A waterproof protector placed over a damp mattress can trap moisture.
Do not use strong scents to hide odors
Heavy fragrance does not remove the material causing the smell. It can also make it harder to tell whether the mattress is fully clean.
Do not ignore the bed base
Clean and dry the frame, slats, box spring, or platform if the spill reached them. Putting a clean mattress onto a damp or dirty base can cause the problem to return.
When to Consider Professional Cleaning
Professional cleaning may be useful when:
- The mattress has a large stained area.
- Liquid has soaked below the surface.
- The mattress is too heavy to move safely.
- Home cleaning has not reduced the odor.
- The mattress has delicate or unusual materials.
- The manufacturer recommends professional care.
Ask what cleaning method will be used and whether it is suitable for your mattress type. Confirm how the mattress will be dried after cleaning.
A professional service may improve many stains, but no cleaner can promise that every old mark will disappear.
How to Protect the Mattress After Cleaning
Once the mattress is fully dry, add a washable mattress protector.
Choose one that:
- Fits the mattress depth
- Stays secure around the corners
- Can be washed according to your normal laundry setup
- Matches your needs for spills, pets, kids, or guest use
- Does not feel overly loose or bunch under the sheet
Pocket depth is the height of mattress that a fitted item is designed to cover. Measure from the bottom edge to the top surface, including any topper.
Wash the protector as directed on its care label. Clean spills promptly so they have less time to spread through the bedding.
For a child’s bed, pet-friendly room, or guest bed, keeping a spare protector can make laundry day easier.
Frequently Asked Questions
Can a badly stained mattress be cleaned?
Many surface stains can be reduced with vacuuming, careful spot cleaning, and thorough drying. Deep stains, widespread mold, flood contamination, or liquid that has soaked through the filling may not be practical to clean at home.
Can I wash a mattress with a hose?
No. A hose can soak the inner materials and make the mattress very difficult to dry. Use small amounts of cleaner on a cloth or follow the manufacturer’s approved cleaning method.
What is the best cleaner for old mattress stains?
The best cleaner depends on the stain and mattress material. Mild soap can work for general dirt and food marks. An upholstery-safe enzyme cleaner may be more suitable for urine, vomit, and similar organic stains. Always check the product label and mattress guidance.
How long does a mattress take to dry after cleaning?
Drying time depends on the amount of moisture, mattress material, room humidity, and airflow. Leave the mattress uncovered until every cleaned area is completely dry, even if this takes most of the day or longer.
Can I use baking soda on a stained mattress?
Baking soda can help absorb some surface moisture and odor after stain treatment. It is not a complete stain remover and should be vacuumed away thoroughly before the bed is used.
Can I use bleach on a mattress?
Bleach can discolor fabric and damage foam or other materials. Do not use it unless the mattress manufacturer specifically approves it. Never mix bleach with another cleaning product.
Should I replace a mattress with mold stains?
A tiny surface mark and widespread mold are not the same problem. When mold appears across a large area, returns after cleaning, smells strong, or seems to be inside the mattress, surface cleaning may not be enough. Check manufacturer guidance and consider professional advice or replacement.
Can I put sheets on a slightly damp mattress?
No. Sheets and protectors can trap moisture inside the mattress. Wait until the surface, seams, sides, and cleaned areas feel completely dry before making the bed.
clean a yellow stained mattress. remove yellow stains from a mattress. get pet urine stains off a mattress.
