The Best of European and American Sleep Design has been combined in our "Lifetime Dreams" 2002. We have combined natural latex, over individually wrapped coils, encased in a zippered luxurious cotton cover quilted to wool. And, if you select our European slatted base foundation you have the ability to individually adjust the support in your mattress to accommodate proper spinal alignment, sleeping positions, and body weight changes. Slatted base is imported exclusively for Sleep E-Z in Arizona.