Full-month babies do not sleep soundly may be caused by physiological factors, there may be pathological factors such as lack of calcium and vitamin D, indigestion and so on. 1. Physiological factors: such as overfeeding, underfeeding, or the environment is too hot, too cold, noisy, etc. can cause full-term babies sleep uneasily, parents need to carefully observe, timely correction of these effects can be, to provide the baby with a quiet rest environment. 2. Pathological factors (1) lack of calcium and vitamin D: vitamin D deficiency can affect the body of the baby’s calcium absorption, thus causing calcium deficiency, resulting in increased nerve excitability, affecting sleep, so that babies appear to sleep unsteadily. (2) indigestion: full-term infants’ gastrointestinal system is well-developed, there may be gastrointestinal dysfunction, causing indigestion, resulting in abdominal distension, spitting up and other discomforts during sleep, thus causing sleeplessness. Of course, we can not rule out other diseases caused by the baby’s discomfort and the symptoms of restless sleep, so if the full-term baby long-term symptoms of restless sleep, it is recommended to go to the hospital to find out the cause of the problem, and actively on the cause of the treatment, so as to avoid delaying the condition.