Of course there would be other factors that would come into play in the selection of the best pure silk comforter but these would be some of the key factors in such decision making.
Now that you know what you want you can go shopping confidently. You have already narrowed down your search to a particular style and price of the future silk bed sheet, so this makes things that much easier. Before buying anything, make sure that the salesperson explains everything you need to know about things like fabric and washing. Different types of silk bedding sets require different types of care.
It will be your best investment in life.