EvenTemp Temperature Balancing Mattress Pad, King 100% Cotton Top/100% Polyester Sidewalls Imported Revolutionary and patented technology Adds a layer of comfort to your mattress that adjusts continuously to your body temperature so you are never too hot or too cold Hypoallergenic fiber fill Care Instructions: Machine wash warm, normal cycle, only non-chlorine bleach when needed; Tumble dry low; Do not iron