Is the quilt cover of a five-star hotel made of pure cotton or satin?

Hello, the five-star hotel is luxuriously decorated with luxurious upholstered beds, writing desks, wardrobes and hangers, coffee tables, chairs or simple sofas, bedside tables, bedside lamps, table lamps, floor lamps, full-length mirrors, luggage racks and other advanced supporting furniture. The interior is covered with high-grade carpet or high-quality wood floor. The quilt cover is made of 80 cotton satin.