3.0" Convoluted Memory Foam Comfort Layer * Unique open-cell, highly-breathable memory foam provides ultra comfort as well as heat dissipation and enhanced airflow which contribute to a cooler sleeping surface. * This is a product where the foam in this mattress is produced using Natural plant-based ingredients in place of the traditional petroleum based ingredients normally used by other manufacturers. * This mattress is made using a patented VPFSM process which ensures that virtually zero emissons are released to the environment during its manufacture. This is another way in which this mattress provides a "Green" benefit * 250 Thread Count Cotton Cover zippered for easy removal