BASIC TOP MATTRESS - The top mattress has a removable stretch material cover, machine washable at 60°C (140°F). Height 5 cm (1.9"). Carpe Diem has two different top mattresses in their range, both are Swan eco-labelled. The top mattresses are filled with Talalay latex, and the Exclusive top mattress is also filled with purely natural materials, all carefully chosen from a quality, comfort and environmental point of view. The Talalay latex in Carpe Diem’s top mattresses is Ökö-Tex approved.