This Silk Blanket is the ultimate in Luxury and softness, it is Warm in Winter and Cool in Summer. The thermostatic quality of silk means that you will not 'boil up' in the early hours of the morning, as is common with other blankets. Silk has also natural non-allergenic qualities. The outer layer of this luxury blanket is made from 80% pure mulberry silk with a 20% poly/cotton base fabric to ensure long lasting shape and durability