The hippychick fitted mattress protector is a wonderfully easy44 practical and discreet way of guarding against wet beds and damaged mattresses pure brushed cotton44 100 waterproof44 breathable polyurethane layer soft absorbent and comfortable anti allergy barrier protects against dust mites which are a major cause of hay fever and asthma its machine washable at 60 degrees c and is also able to be tumble dried