If it is possible for you to try the bedding for some time, it will be better. This way, you will know the comfort level that you will feel with it. Try to ask the seller if you can get a sampler of it so that you can bring it home.
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.