Usage Tips:COTTON: Our mattress protector is made of cotton, which is very soft and comfortable and offers you a pleasant sleepBREATHABLE: Pure cotton has good heat resistance, no plastic layer, breathable and quiet You can sleep well all night without sweatingOPTIMAL HYGIENE PROTECTION: The mattress cover can protect the mattress from sweat, moisture and dirt, but it is NOT WATERPROOF It won't irritate the skin Pregnant women and children can use our cotton mattress protectors with confidenceSAFE AND DURABLE: The quality of this mattress protector corresponds to German testing standards and is free from harmful substances, does not damage the fibers, it can be washed, printed and dyed as desired and is not deformedSUITABLE FOR ALL MATTRESSES: With 4 corner elastic straps you can flexibly adjust the height of the mattress (5 up to 35 cm) It is very easy to open without slipping and it fits your mattress very well