The Peridot 13,750 from the Harrison Spinks Optimum Support collection of mattresses is made with Cortec™ Quad springs of higher tension and needled Hemp pads to provide an extra firm sleeping surface. This is a seasonal turn mattress with a warm side featuring a wool blend to keep you warm during the colder months, and a cool side featuring a moisture-wicking cotton blend close to the sleeping surface, keeping you fresh and dry during the warmer months. All 13,750 pocket springs within the mattress are recyclable, along with all-natural sustainable fillings including British wool, Egyptian cotton, kapok, lustrous alpaca, home-grown firming needled hemp and sumptuous mohair. Also available as a 4'6" or 6' ottoman set and as a standard divan set, with or without drawers, in all sizes from a 2'6" to 6'