With layers of blended British wool and viscose, sumptuous mohair, crisp cooling Egyptian cotton, home-grown hemp and flax and sustainable Ecotex. The Jasmine has 9500 innovative springs; including recyclable advanced Cortec™ Revolution pocket springs, pressure relieving HD 4000 micro springs, contouring Microlution Airflow springs and Posturfil pocket springs. With an in-house woven FR chemical free mattress cover and three rows of side stitching, this mattress is turn free for your convenience. Mattress tension: medium or firm