This amazing product combines 100% knitted (jersey) organic cotton with a unique hyper breathable Neotherm® membrane which is up to 10 times more breathable than the traditional PU. This makes it ideal as a quality fitted sheet which doubles as an odourless and noiseless waterproof protector. Suitable for mattresses up to 33cm deep. Available in white, light grey and light blue (pillow protector available in white only).