Amethyst I is engineered to deliver a medium firm feel for those who pefer a firmer back support, while an infusion of memory foam offers you the benefits of a snug feel as it envelopes to the contour of your body. With the combination of MaxCoil’s Nested Encapsulated Coil system, it provides an all-over even support to relieve pressure points for an undisturbed and peacful night’s sleep.