How to Get Stains & Yellowing Out of a Mattress Protector
Mattress protectors are designed to shield your mattress from everyday spills, sweat and accidental stains, helping it stay cleaner for longer. But while they protect what’s underneath, the protector itself can become marked over time.
Whether you’re dealing with sweat stains, yellowing, blood or accidental spills, acting quickly and using the right cleaning method can help keep your mattress protector fresh and in great condition. If you’re looking for a new mattress protector, choosing the right style can also help make caring for your bedding easier.

Why Do Mattress Protectors Turn Yellow?
Yellowing is one of the most common concerns, but it’s usually nothing to worry about.
Over time, mattress protectors naturally absorb:
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Body oils
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Sweat
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Moisture
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Skincare products
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Skin cells
Even with regular washing, these can gradually cause discoloration, particularly on white protectors.
If your mattress protector has become yellow but still feels clean and performs well, it doesn’t necessarily mean it needs replacing. However, if stains persist despite washing or the fabric begins to lose its protective qualities, it may be time to invest in a new mattress protector.
How to Get Yellow Stains Out of a Mattress Protector
Before treating stains, always check the care label.
For most washable mattress protectors:
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Pre-treat the stain
Apply a gentle stain remover or a paste made from bicarbonate of soda and water to the affected area.
Leave for around 30 minutes before washing.
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Wash according to the care label
Wash at the recommended temperature using a quality laundry detergent.
Avoid using temperatures higher than recommended, as excessive heat can damage waterproof membranes or specialised fibres.
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Dry thoroughly
Allow the protector to dry completely before placing it back on the bed.
This helps prevent trapped moisture, odours and mildew.

How to Remove Sweat Stains
Sweat is one of the biggest causes of yellowing.
For fresh sweat stains:
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Treat as soon as possible.
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Apply a stain remover before washing.
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Wash with a biological detergent if suitable for the fabric.
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Dry completely before reuse.
Washing your mattress protector every one to two months can help prevent sweat build up.
How to Remove Blood Stains for a Mattress Protector
Blood stains are much easier to remove when fresh.
For the best results:
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Rinse the stain using cold water.
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Never use hot water first, as it can set the stain.
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Apply a stain remover suitable for protein based stains.
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Wash according to the care instructions.
If needed, repeat the process before drying.
How to Remove Urine Stains and Odours
Accidents happen, especially in homes with young children or pets.
If urine reaches your mattress protector:
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Blot away as much liquid as possible.
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Rinse with cold water.
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Pre-treat with an appropriate stain remover.
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Wash promptly according to the care label.
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Ensure the protector is fully dry before placing it back on the mattress.
If spills and accidents are a regular concern, our waterproof coolmax mattress protector provides a waterproof barrier to help stop liquids reaching your mattress while remaining breathable and comfortable to sleep on.
Can You Bleach a Mattress Protector?
Generally, no. Bleach can weaken fibres and may damage waterproof backings or protective coatings. Instead, use a gentle stain remover that’s suitable for the fabric.
How Often Should You Wash a Mattress Protector?
Most mattress protectors should be washed every one to two months.
However, you may wish to wash yours more frequently if:
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You suffer from allergies.
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You have pets that sleep on the bed.
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Someone has been ill.
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There has been a spill or accident.
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You tend to sweat heavily during the night.
Regular washing helps maintain hygiene while extending the life of both your mattress protector and your mattress.

When Should You Replace a Mattress Protector
Even with good care, mattress protectors won’t last forever.
Consider replacing yours if:
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It has permanent staining that won’t wash out.
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The waterproof layer has deteriorated.
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Elastic straps or fitted skirts no longer stay in place.
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The fabric has become thin or damaged.
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It no longer provides the protection you need.
If you’re replacing an older protector due to wear or hygiene concerns, it’s worth exploring our full mattress protector collection to find the best option for your sleep needs.
Protect Your Mattress For Longer
A quality mattress protector is one of the simplest ways to extend the life of your mattress. By washing it regularly, treating stains promptly and replacing it when necessary, you can keep your bed feeling fresher for longer.
Whether you’re looking for waterproof protection, breathable comfort or everyday peace of mind, our range of mattress protectors are designed to help keep your mattress clean, comfortable and protected night after night.



