Within three months of the baby, it is recommended to take the side position to sleep, its sleep time is relatively long, after eating will be in a sleep state, play time is not very long, especially within a month of the baby, in addition to eating is sleeping, is such a state. In the choice of sleep mode, it is usually recommended that babies within three months take the side position to sleep, because the gastrointestinal of children is horizontal, the digestive system function is not yet perfect, especially after eating, most in the flat position, that is, lying down, if the flat position, often lead to vomiting of stomach contents, that is, vomiting milk, after vomiting milk is easy to lead to choking and coughing, and may even choke. Therefore, it is recommended that babies within three months sleep on both sides, i.e., in the left lateral position or in the right lateral position, the body also needs to be sideways, not just the head sideways and the body lying flat, using the entire sideways position alternately to sleep.