Bio Sleep Concept Tropical Organic Wool California King Size Comforter 100% Cotton Made in US Natural and chemical-free 1 Year Limited Manufacturer Warranty Made in USA This handmade organic wool comforter features a 100-percent organic cotton cover Care: dry clean , but sun and air seasonally to revitalize the wool or "air fluff" in a dryer with no heat for 15 to 20 MN Wool is the ideal bio and natural fiber Wool helps your body regulate temperature