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.
Girls tend to have a wide range of tastes and liking for the accessories that they are having. If you go to a furniture store and ask for girl beddings, you will be provided with more options than any other bedding category. Different styles of bedding are available for girls of different age.