Pure brushed cotton waterproof flat sheet mattress protector 100% waterproof mattress protector Anti-allergy barrier protects against dust mites Machine washable at 60 degrees Tumble on lowest heat setting or line dry Waterproof flat sheet available in differing bedding sizes - pram, cot bed, single, double Do not use biological detergents or fabric conditioners as this will break down the waterproof membrane Hippychick Cotton Waterproof Flat Sheet is a high quality waterproof mattress protector. Discreet and 100% waterproof – it is difficult to see how such a practical product can feel so luxurious. Hippychick take a much needed, but also much maligned product and transform it into a comfortable, soft, unnoticeable piece of bedding – a great natural alternative to sweaty plastic waterproof sheets. The undetectable layer of polyurethane makes this waterproof flat sheet not only completely waterproof and also an anti-allergy barrier protecting against dust mites – a major cause of asthma and hayfever. Our cotton waterproof flat sheet Mattress Protector is available in a range of bed sizes – pram, cot bed, single bed and double bed.