Children's pillow how to choose good?

Children, especially infants less than a year old is an important stage of head development, there is a suitable pillow is very conducive to the baby's head blood circulation, promote growth and development. Currently on the market there are three materials are more common: the first is the traditional folk material, such as buckwheat hulls, cassia, tea, cotton, etc., the advantage of breathable, moderately priced; the second is a chemical fiber material, belonging to the modern textile industry, the material is relatively soft, affordable, but not breathable; the third is the latex pillow, it is said to be beneficial to the development of children's spinal column, and breathable and comfortable, but the price is expensive.