Silk or silk like materials, and weighted blanket brands or suggestions?

Hello I am looking for silk bedding (the electric that goes over the mattress, the lose sheet, and pillow covers since I kinda don't like using a duvet cover.) I want to know how much should to keep my expectations reasonable since I'll be honest i want one on the cheaper side, or if there is a material like it than it's also good since I saw this one bamboo one. Same with a weighted blanket.