Nitori Waterproof Sheet - Color: White - Color: Beige - Design: Quilting - Design: Quilting The size is the size of an SD (Semi-Double) size mattress pad. I think it's about 140cm x 200cm. I used it for about 3 years, but I don't use it anymore, so I'm putting it up for sale. For those who don't mind, thank you. Thank you for looking.