Made exclusively to fit the unique shape of the Stokke Sleepi™ bed, this innovative sheet protects your little roommate's mattress from 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 and dream. Keeping with a fresh theme, breathable 3D mesh ensures optimal airflow. The Stokke Sleepi™ bed protection sheet is class 1 approved, and certified free from hazardous substances with the latest research and technology governing what's best for your baby.