Just born to three months of small infants, because the physiological curvature of the neck has not been formed, so it is not recommended to use a pillow; three months later the infant neck curve gradually mature, you can consider using a pillow. The early use of pillows to infants can cause the infant spine curvature, serious breathing difficulties can be caused, so to decide when to use the pillow according to the baby’s growth and development. 3 months after the baby can lift the head, but also to practice turning over, this period the baby’s spine began to bend, you can start to choose a pillow for the baby, the height of the pillow is not easy too high, 2-3cm can be, so as not to pillow too high damage to the child’s cervical spine, the normal physiological bending. Affect the formation of normal physiological curvature. In addition, the baby’s pillow must also be comfortable, breathable, moisture-absorbent, soft and hard moderate, you can use your hands to make a suitable pit for the baby, which is conducive to the baby’s cranial development.