Made exclusively to fit the unique shape of the Stokke Sleepi Mini, this innovative sheet protects your little roommates mattress from those inevitable accidents and messy spills. Waterproof, it prevents liquids from being absorbed by the mattress to help maintain a fresh, clean place for your baby to sleep & dream. 3D mesh ensures optimal airflow and best of all, its machine washable. The Stokke Sleepi Bed Protection Sheet is Oeko-Tex Standard 100, class 1 approved and certified free from hazardous substances with the latest research and technology governing whats best for your baby.