Mattress Protectors

Most people give a mattress protector little thought until something spills on the mattress beneath - by which point a stain on something that cannot go in the washing machine is already the problem. A mattress protector is a thin, removable layer that sits directly on top of your mattress and beneath the fitted sheet, guarding against spills, stains, allergens and general wear. A protector is designed primarily to shield the surface and extend the mattress's life. Most modern protectors are slim enough to be invisible once the bed is made, and many are machine-washable for easy upkeep, with proper protection often a requirement for keeping a new mattress within warranty.

The most important distinction in the category is between waterproof and non-waterproof. Waterproof protectors use a breathable membrane to block liquid while still allowing air to pass through. Modern versions are silent and unnoticeable in a way that older plastic-backed versions were not. They are particularly useful for children's bedrooms, for anyone who suffers from night sweats, and for protecting a new memory foam or pocket-sprung mattress from accidental damage. Standard quilted cotton protectors give a softer, more padded feel without the waterproof layer, suiting dry bedrooms where breathability and added comfort are the main priorities. Anti-allergy and dust-mite resistant versions use a tighter weave or treated layer to reduce allergen exposure, and are widely recommended for asthma, eczema and hay fever sufferers. Zip-around protectors enclose the mattress entirely on all six sides, offering maximum protection for anyone with serious sensitivities. Bamboo-faced and cooling variants use natural fibres that suit hot sleepers.

Sizing follows standard UK mattress dimensions: single, double, king and super-king alongside cot, cotbed, crib and Moses basket sizes for younger family members. Depth matters as much as size, so measure the mattress including any topper before ordering: a shallow-skirted protector on a deep mattress will lift at the corners, just like an undersize fitted sheet. Deep-fitted skirts at 30cm to 40cm cater for thicker hybrid and memory foam mattresses.

White and grey are the most common colours since the protector sits hidden beneath the sheet, directly on the mattress. For added pillow hygiene, pair with pillow protectors that follow the same waterproof or anti-allergy principles. Younger family members are best served by dedicated children's mattress protectors.

Flitch brings together mattress protectors from more than 100 UK retailers in one place, so you can compare waterproof, anti-allergy, deep-fitted and cotton-faced options side by side. Filters narrow by size, depth, material and price, price history shows how individual protectors have tracked, and price drop alerts catch a saving. Our expert stylists are on hand for anyone setting up a hypoallergenic bedroom or navigating the warranty requirements on a new mattress.

What is the difference between a mattress protector and a topper?

A protector is a thin layer that guards against liquid, stains and allergens without affecting feel. A topper is much thicker and is designed to change how the bed feels by adding softness, support or cushioning on top.

Do I really need a waterproof protector?

If you have children, drink in bed, suffer from night sweats or want to protect a new mattress under warranty, a waterproof layer is well worth having. Many manufacturers void warranty cover for stain-related damage.

Will a protector make the bed feel hot?

Modern breathable membranes and bamboo or cotton facings are designed to allow air and body heat to pass through. Cheaper plastic-backed versions can feel warm, so look for terms like breathable, cool or silent if temperature is a concern.

How often should a mattress protector be washed?

Every one to two months as standard, or more often after spills, illness or if you have allergies. Always follow the care label and avoid bleach, which can damage waterproof membranes.

How do I choose the right depth?

Measure the mattress including any pillow-top. Standard skirts fit up to around 25cm; deep fits 30 to 35cm; extra deep is needed for hybrid and memory foam beds beyond that.