The Sealy Spring Bloom 12” Medium Mattress, CA King blends softness and firmness in the right proportions. This balanced mattress includes a soft knit cover, layers of gel foam cushioning, and encased coils for additional support. Sleep well and with ease on this soft yet supportive mattress.Product Details:• Back and core support allow you to rest comfortably• Medium firmness is not to soft or hard and suitable for many people• Gel foam layers cover encased coils which provide additional support