The Malibu Dreams Rocking Mini Bassinet is designed with a mid-century look and with a safe sleep environment in mind. Made with a compressed blend of cotton and polyester mattress ,which means no fire retardants are used ,and lined with a breathable 3D meshing fabric covering the mattress pad for maximum airflow. The mattress cover is made with a washable and removable bamboo viscose liner to promote airflow and breathability. Viscose from Bamboo has natural temperature control properties your little one will be cool and comfortable on warm days and warm and snug on cold days.