Sleeping on a Pure Talalay Bliss mattress is a life-changing experience. Unlike other mattresses, Pure Talalay Bliss mattresses allow your muscles to relax by providing uplifting support and a pressure-less feel. ... Unique layers of Talalay latex deliver unparalleled support and pressure relief! The outstanding feature of the World's Best Bed is the carbon infusion of the top layer. Pure Talalay Bliss does not claim cooling properties for the carbon. Talalay latex, with its numerous pores and open-cell structure, is a breathable material. The carbon is intended to act like a filter, purifying the air flowing through.