The first thing that you need to do is to assess your need of the bedding. You need to determine the type of bedding that will be appropriate for you. One good factor that you have to consider is the type of climate that you have in your place.
If you often have winter in your place, try to choose those that can give warmth like flannel sheets and down comforters. If you live in a place where the sun always rises and gives heat, then you may need to use satin and silk which are cooler on skin.