Our Davinci Semi-Firm is a Talalay Latex and pocket coil hybrid. Semi-firm, Quebec Made pocket coils provide the support, while the 3.0lbs High Resolution foam and the Talalay Latex provide the confort.The pocket coils are "True Pocket coils" meaning they do not have a fabric liner glued over top of them, they are attached to one another with glue, and they are glued only in the center of the coils--the ends of the coils remain independent. Very comfortable mattress for those looking for the ultimate in comfort and support. The mattress is upholstered with our Bamboo Fabric which is quilted with our 2.0lbs "Cool Max", open cel foam for maximum breathability and comfort. This is one of the most comfortable mattresses we make.