Liquid, urine, sweat and stains cannot leak into the mattress, contaminate the mattress, and extend the life of the mattressThe surface of the cotton terry cloth is laminated with a TPU film on the back. Don’t worry about leaking coffee, beverages, stains, etc. (breathable, comfortable, noiseless)Fitted Bed Sheet Design-With elastic bed skirt, free movement, mattress protector will not move, suitable for 18" deep mattressIt is very suitable for families, hotels, homestays, hospitals, etc. It is very good to protect "unwashable" mattresses.Mattress cover can be machine washed and dried on low heat.If you have any questions, our customer service team will solve them perfectly for you. We welcome you to come and chat with us.