The Hyla is a hybrid mattress. It has a firm 5″ high density polyurethane foam core, with 2″ of C0 soft latex laminated to both sides. When laying on the mattress, it has a firm feel, but with the soft latex providing a comfort layer on both sides of the mattress. This mattress has been designed to compete with the national chain brands that sell mattresses in a box. Royal believes we are providing a superior product for less money, without having all the air sucked out of the padding, stuffed in a box, and shipped to you where the customer is responsible for opening and waiting to see if all the materials will recover. Please take the time to try it for yourself on our showroom floor. This is a 2 sided mattress that can be flipped and turned.