Protect your cot mattress from dust mites and any accidents. Unlike zip-up mattress covers that wrap around the entire mattress, this waterproof mattress protector lies flat over your mattress underneath the sheet, meaning that it can be easily maneuvered and keeps your mattress as breathable as possible by allowing air to flow through the sides and base. A waterproof layer of polyurethane (as used in bottles and dummies) is sandwiched inside two layers of cotton, protecting the bed from any accidents and wetness whilst still providing a soft and comfortable surface. It is easily removed and is machine washable and tumble dryer safe. No more crinkly plastic mattress protectors - also great for when changing nappies and as a buggy liner.