Our Silentnight Anti-Allergy Mattress topper is the perfect answer to a fresh, hygienic night's sleep. Providing ultimate protection, our toppers are filled with anti-bacterial, anti-allergy fibres that actively guard against bacteria and dust-mites. The toppers are encased in a soft and sumptuous microfibre cover and secured firmly with elastic straps for unbeatable fit. Our anti-allergy fibres are approved by the British Allergy Foundation, which means they have the ultimate seal of approval. Suitable for king size beds. D2.5cm. Cover made from 100% polyester. 100% polypropylene reverse. 100% polyester anti-allergy hollowfibre filling. Secured by elasticated corner straps. Anti-allergy. Cover is machine washable at 40C and suitable for tumble drying. Contains a biocide to help protect against bacteria and dust mite allergens. Active substance: Dimethyloctadecyl[3-(trimethoxysilyl)propyl]ammonium chloride. EAN: 5012701448888.