A very important role in the mattress plays the same result than it is filled. It is best to buy those mattresses that are able to take human shape, so they will provide comfort during rest. Many people prefer mattresses with the effect of memory, although such a model is more suitable for those who have a quiet and calm dream. For those who very often rotate on the one hand, a more rigid mattress is suitable for the other and it does not matter which filler it has.