Never get stuck with a mattress you don’t like again! EOS is fully customizable, even years later. Swap layers for free as many times as you need within the first 100 days until it’s perfect! Right and left sides independently configurable. Trilux version consists of 3 layers of 3" latex. No coils / springs / metal. 100% GOTS certified organic with no glues or adhesives. Passes flammability standards without fire retardants or added chemicals.100-NIGHT TRIAL | 25 YEAR WARRANTY | FREE RETURNS