With layers of blended British wool and viscose, sumptuous mohair, home-grown hemp and flax and crisp cooling Egyptian cotton. The Lotus has 20750 innovative springs; including 100% recyclable advanced Cortec™ Quad, pressure relieving HD 4000 Micro, contouring Microlution Airflow and Posturfil pocket springs. With an in-house wovenFR chemical treatment free mattress cover and three rows of side stitching, this Seasonal Turn mattress has a warming wool winter side and cooling cotton summer side. Choose from three levels of support; gentle, medium or firm.