The SnuzSurface Duo cot and cot bed mattress is made with your little one in mind. Boasting an innovative 3D breathable mesh cover with a waterproof layer, it's perfect for the potty training years. The Duo mattress features a pocket sprung core to provide baby with progressive support as they transition into toddlerhood. Available in all popular cot & cot bed sizes. Dual-sided two levels of firmness, Waterproof surface removable , machine washable cover washed up to 40 degrees.