Top face: 100% cotton fabric bottom surface: 100% liquid proof 1st quality membrane covering side: cotton-polyester mixed pampes fabric our fully permeable mattresses with elasticated edges do not slip under the duvet cover and offer excellent protection without interrupting your comfort. the product is not in the form of a cover, it is in a flexible structure that surrounds your mattress. for this reason, you should choose the same size product as your bed when ordering. if you do not want to use the product for many years and have no shrinkage problems, wash it at as low a temperature as possible. although the highest recommended temperature is 60 degrees, it has been proven in the r&d tests that the life of the product is extended if it is washed at 40 degrees. dimensions: (width x length x height) baby: 70x140x30cm single: 90x190x30cm / 100x200x30cm / 120x200x30cm double: 140x200x35cm / 150x200x35cm / 160x200x35cm overhead length: 180x200x35cm / 200x200x35cm product features keeps cool in hot weather thanks to its cotton feature. allows you to warm up in cold weather in winter. the membrane surface, which is in contact with the mattress surface, not only protects your mattress against water and all kinds of liquids, but also prevents the formation of sounds such as rustling. it does not irritate the skin and offers a comfortable comfort. it does not sweat thanks to its air permeability. it does not create a bad smell. it provides protection against the formation of dust mites and other allergens. areas of use ideal for people who have night sweating problems. it is useful for long-term patients. it can be used for children and adults who have problems with wetting the bed. washable up to .60 degrees. Improved version for clearer understanding and better search visibility. Suitable for users seeking detailed and reliable product information.