It is still necessary to correct your baby’s preference for side sleeping, and pay attention to changing the sleeping position regularly. Babies sleep on their side in one position for a long time, which will change the shape of the skull over time, and will also affect the development of the baby’s facial muscles, which will result in the left and right cheeks not being the same size over time. This will affect the baby’s aesthetic appearance. It is still necessary to correct it. When the baby falls asleep, parents can consciously change the baby’s sleeping position, you can let the baby sleep on his back. The baby should also change the head of the bed from time to time to sleep position, by changing the sleeping environment and light changes, in order to change the baby to one side of the sleeping habits. After birth, the baby’s physical development is not yet perfect, the shape of the head is very plastic. Good living habits, will be conducive to the healthy growth of the baby, but also can bring the baby appearance of beauty.