How to clean a mattress (2026)
Quick Answer
To clean a mattress properly, start by checking the care label or manufacturer guidance, then strip the bed, vacuum the whole surface and treat any stains with the gentlest suitable method for that mattress type. Keep moisture to a minimum, let the mattress dry fully before remaking the bed, and use a mattress protector to reduce future build-up of sweat, dust and spills.
Overview
Mattresses collect dust, skin flakes, sweat and occasional spills, so regular light cleaning works better than infrequent deep soaking. In most cases, the safest routine is to remove all bedding, vacuum the mattress carefully, spot-clean marks rather than wetting the whole surface, and allow thorough drying before putting sheets back on. This matters because many mattresses contain foams, adhesives and inner layers that can be damaged by too much water and can trap moisture, leading to odours, mould or mildew. Routine care is usually simple: wash bedding regularly, vacuum the mattress during sheet changes or at a regular interval that suits your home, rotate or turn the mattress only if the manufacturer says to, and deal with spills straight away. Watch for persistent odours, damp patches, spreading stains, allergy flare-ups, visible mould or signs of bed bugs, as these can mean home cleaning is not enough. If the mattress has major contamination, possible mould, pest activity, or strong urine or smoke odours that remain after careful cleaning, specialist cleaning or replacement may be the safer option. Always follow the mattress maker's instructions first, especially for memory foam, latex, pillow-top and zip-off cover designs.
Who this is for
People doing routine mattress care at home, including cleaning up light spills, sweat marks, dust and minor odours without damaging the mattress.
What you’ll need
- Vacuum cleaner with upholstery attachment
- Clean dry cloths or white towels
- Mild laundry detergent or upholstery-safe cleaner if the label allows it
- Cold or lukewarm water if needed for spot cleaning
- Bicarbonate of soda for deodorising if suitable
- A mattress protector for ongoing prevention
Before you start
Check the mattress label and the manufacturer's care instructions first. Some mattresses have removable washable covers, while others must only be spot-cleaned. Do not soak memory foam or latex, do not use harsh bleach unless the manufacturer specifically allows it, and make sure you can leave the mattress uncovered long enough to dry fully in a well-ventilated room.
Step-by-step
- 1
Check the care instructions
Look for the sewn-in label and any guidance from the mattress manufacturer. Confirm whether the cover is removable, whether spot cleaning is allowed, and whether there are any products or methods to avoid.
Why: Mattress materials vary a lot. Using too much water or the wrong cleaner can damage foam, stitching, fillings or fire-barrier materials, and may void a warranty.
- 2
Strip the bed and wash removable bedding
Remove sheets, pillowcases, protectors and any removable mattress cover that the maker says can be washed. Wash them according to their own care labels before putting them back.
Why: Cleaning only the mattress but putting dirty bedding back on it defeats the purpose and can quickly reintroduce odours, skin cells and allergens.
- 3
Vacuum the mattress thoroughly
Use an upholstery attachment to vacuum the top, sides, seams, piping and any tufted areas where dust and debris collect. Work slowly and pay extra attention to edges and stitched areas.
Why: Dry soil removal comes first. Vacuuming lifts dust, hair and debris without pushing stains deeper or turning dry dirt into muddy residue.
- 4
Treat spills and stains by blotting, not soaking
If there is a fresh spill, blot it immediately with a dry cloth. For marks that remain, use the gentlest cleaner suitable for the mattress and apply it sparingly to a cloth rather than pouring it onto the mattress. Dab from the outside of the stain inward, then blot again with a clean damp cloth if needed.
Why: Blotting lifts contamination while limiting moisture. Heavy wetting can spread the stain, weaken materials and leave dampness trapped inside the mattress.
- 5
Deodorise lightly if needed
If the mattress smells stale but is otherwise dry, you can lightly sprinkle bicarbonate of soda over the surface if the manufacturer does not advise against it, leave it in place for a while, then vacuum it off thoroughly.
Why: A dry deodorising step can help absorb surface odours without saturating the mattress.
- 6
Dry the mattress completely
Leave the mattress uncovered until it is fully dry. Improve airflow by opening windows, using a fan, or following the manufacturer's drying advice. Do not remake the bed while any area still feels cool or damp.
Why: Trapped moisture can cause lingering odours and may encourage mould or mildew growth.
- 7
Protect and maintain it routinely
Put on clean bedding and add a washable mattress protector if you do not already use one. Repeat light cleaning as part of regular bed care, and rotate the mattress only if the manufacturer recommends it.
Why: Protection and routine maintenance reduce future staining, allergen build-up and wear, making deeper cleaning less often necessary.
Why this works
Good mattress cleaning relies on removing loose debris first, limiting moisture so internal layers are not damaged, and dealing with spills quickly before they set. Because mattresses are thick and slow to dry, careful spot cleaning is usually safer and more effective than saturating the whole surface.
Common mistakes to avoid
- Soaking the mattress or pouring cleaner directly onto it
- Using bleach, strong solvents or steam without checking the manufacturer's instructions
- Scrubbing a stain aggressively, which can spread it and damage fabric
- Remaking the bed before the mattress is completely dry
- Ignoring the care label, especially on foam, latex or pillow-top mattresses
Troubleshooting
The stain lightens but does not disappear
Stop before over-wetting the area. Repeat gentle spot cleaning after the mattress has dried, or consult the manufacturer for approved stain-removal advice.
The mattress smells damp after cleaning
Increase ventilation and drying time, keep bedding off, and vacuum again once dry. If odour persists or there are visible specks or patches, consider professional assessment for mould or deeper contamination.
Powder residue remains after deodorising
Vacuum more slowly with the upholstery attachment and repeat from different directions. Avoid using too much powder next time.
There are black, green or fuzzy patches
Treat this as possible mould. Avoid sleeping on the mattress until it is assessed, and seek professional advice because surface cleaning may not address growth inside the mattress.
You notice small blood spots, dark specks or bites after sleeping
Consider the possibility of bed bugs and arrange proper inspection and treatment. Cleaning alone will not solve an infestation.
Compare your options
Routine vacuuming and spot cleaning
Best for: Regular maintenance and minor marks
Pros: Low risk, suitable for most mattresses, helps control dust and light odours
Cons: Will not fully remove deep contamination or severe odours
Removable washable cover cleaning
Best for: Mattresses designed with a zip-off cover
Pros: Allows more thorough cleaning of the outer layer
Cons: Not all covers are washable, and the core mattress still needs careful care
Professional mattress cleaning
Best for: Persistent odours, heavy staining, suspected mould or contamination
Pros: More suitable for difficult cases and specialist assessment
Cons: Costs more and may still not save a badly contaminated mattress
| Option | Best for | Pros | Cons |
|---|---|---|---|
| Routine vacuuming and spot cleaning | Regular maintenance and minor marks | Low risk, suitable for most mattresses, helps control dust and light odours | Will not fully remove deep contamination or severe odours |
| Removable washable cover cleaning | Mattresses designed with a zip-off cover | Allows more thorough cleaning of the outer layer | Not all covers are washable, and the core mattress still needs careful care |
| Professional mattress cleaning | Persistent odours, heavy staining, suspected mould or contamination | More suitable for difficult cases and specialist assessment | Costs more and may still not save a badly contaminated mattress |
Alternatives
- If the mattress has a manufacturer-approved removable cover, clean the cover separately and limit cleaning on the mattress core itself
- For allergy reduction, prioritise a quality washable protector and regular vacuuming rather than repeated wet cleaning
- If contamination is extensive or from bodily fluids, replacement may be more practical than repeated cleaning
Pro tips
- Deal with spills immediately; fresh marks are usually easier to remove than old set stains
- Apply cleaner to a cloth, not directly to the mattress, unless the manufacturer says otherwise
- Use white cloths or towels so dye does not transfer onto the mattress fabric
- Rotate the mattress only if the manufacturer recommends it; many modern mattresses should not be flipped
- A washable mattress protector is one of the easiest ways to reduce future cleaning
Safety notes
- Never mix cleaning chemicals unless the product instructions specifically say it is safe
- Keep the room well ventilated while cleaning and drying
- Avoid excessive moisture, especially on memory foam and latex
- If anyone in the home has severe allergies or asthma, consider wearing a mask while vacuuming dust-heavy surfaces
- Treat suspected mould or pest activity as a health issue, not just a cleaning problem
What this guide does not cover: This guide covers routine home cleaning for common household mattresses. It does not give product-specific instructions for every material or cover specialist decontamination after flooding, infestation, mould growth or hazardous contamination.
Cost considerations
Routine cleaning at home is usually low cost if you already have a vacuum and basic laundry supplies. The main extra cost is often a washable mattress protector, while professional cleaning or replacement becomes more cost-effective only when staining, odour or contamination is severe.
Frequently asked questions
How often should I clean a mattress?+
Wash bedding regularly according to its care labels, vacuum the mattress during regular bed changes or at a routine interval that suits your home, and clean spills straight away. Follow any specific maintenance schedule from the mattress manufacturer.
Can I use steam to clean a mattress?+
Only if the manufacturer says it is suitable. Steam adds heat and moisture, which can damage some mattress materials and leave dampness trapped inside.
Can I put bicarbonate of soda on any mattress?+
It is commonly used as a dry deodoriser, but check the manufacturer's guidance first, especially for delicate covers or specialist materials. Vacuum it off fully afterwards.
What if the mattress smells of urine or smoke?+
You can try careful spot cleaning and thorough drying if the manufacturer allows it, but strong lingering odours often mean contamination has reached deeper layers. In that case, specialist cleaning or replacement may be the better option.
Should I flip my mattress after cleaning?+
Only if the manufacturer says the mattress is designed to be flipped. Many modern mattresses are one-sided and should only be rotated.
Sources & references
Guidance on this page is traced to documented sources. Last checked 24 September 2026.
- Sleep Foundation - How to Clean a Mattress · secondary
Supports the general process of stripping bedding, vacuuming, spot cleaning, deodorising and fully drying before remaking the bed.
- NHS - Bedbugs · government
Supports warning signs that may point to bed bugs rather than a simple cleaning issue, including bites and signs around bedding.
- The Sleep Council - Mattress care guide · industry
Supports routine mattress care principles such as using a protector, regular maintenance, and following manufacturer care guidance.
Basic mattress-care methods change slowly, but product-specific cleaning instructions vary by manufacturer and material.