Forty days of babies hands and feet stirring to fall asleep do not let put the bed may be the lack of appropriate nutrients, indigestion and other reasons, need to be specifically analyzed. 1. Lack of appropriate nutrients: it may be caused by the lack of vitamin D, calcium and other nutrients. The lack of vitamin D can cause calcium deficiency, calcium deficiency can lead to increased nerve excitability, thus appearing more than forty days of the baby’s hands and feet stirring to fall asleep and do not put the bed. 2. indigestion: it may also be due to eating too much, or intestinal flora disorders caused by indigestion. The baby feels sick in the stomach and intestines, so it will move around. The forty day old baby’s hands and feet stirring to fall asleep and not put on the bed may be caused by other reasons, such as physiological factors, it is recommended that parents once found a similar situation, take the child to the doctor in a timely manner, improve the relevant examination and then targeted treatment and treatment.