The stomach of a newborn baby is horizontal and the volume of stomach contents is extremely small. Some newborns eat milk, if they do not sleep properly, it will lead to frequent spitting up, and after spitting up, it is easy to cause choking and suffocation, so we give newborn babies to sleep on their side, maintaining the time in about a week. Sleeping on the side must be on both sides, otherwise the child will be used to sleeping on one side and will easily form a big or small face or a deviated head. If the child is not used to sleeping on his or her side and tends to lie flat, you should put a pillow or a quilt on the child’s back and let the baby continue to sleep on his or her side. If the baby still spits up when sleeping on her side, she must be wiped up promptly and choking and coughing should be prevented. If a child’s head shape is off because of sleep habits, then we must find out early and give timely correction, because the head plasticity of children within a year is relatively strong, so should be corrected in time, should be able to correct back.