I have a question: Has anyone found a good sleep cap made of natural silk? I tried satin pillowcases at first and didn't get good results . . . when I splurged on a real silk one, it made all the difference in the world. I travel for work, though, and would love to have a silk sleep cap to take with me. If you know of any manufacturers, or know a simple way to make one yourself, I'd be grateful to know!