With layers of blended British wool and viscose, lustrous cashmere wool, luxurious silk, Yorkshire wool, crisp cooling Egyptian cotton, kapok, super soft alpaca, long stranded loose hair and home-grown flax. The Orchid has 28750 innovative springs; including 100% recyclable advanced Cortec™ Quad, pressure relieving HD 2500 and HD 4000 Micro and contouring Microlution Airflow springs. With an in-house woven FR chemical treatment free mattress cover and four 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.