Belledorm Mulberry Silk Pillowcase in Powder pink. These luxury silk pillowcases are manufactured to the highest quality from finest 100% pure silk. Silk has many positive attributes along with being sumptuously soft and looking absolutely beautiful draped on your bed. One of the best things about silk is its natural temperature regulating properties which give silk a unique ability to breathe. This helps in removing moisture and perspiration away from the body during sleep, keeping the body dry and cool. Brand: Belledorm. Washable 100% Silk Pillowcase.