The SnuzSurface Air crib mattress is made with your little one in mind. Boasting an innovative 3D breathable mesh cover with a waterproof layer, it's perfect for those nighttime accidents. The Air mattress also provides baby with the ultimate comfort as they grow with its firm supportive core, as recommended by safe sleep experts. Available in all popular crib sizes. The SnuzSurface Air crib mattress has been specifically designed for newborns and infants under 6 months. The mattress cover is removable and machine washable up to 40 degrees. Specifications Ensure that the internal dimensions of your furniture are no greater than : standard crib 400mm (width) x 910mm (length) x 40mm.