Full-term babies do not sleep soundly and wake up easily, the possible clinical causes are environmental factors, dietary factors, lack of nutrition, etc.. 1. Environmental factors: If the baby’s sleeping environment is noisy, the temperature is high, or the baby is wearing a thicker coat, all of the above may cause the baby to have difficulty in falling asleep or waking up easily during sleep. It is recommended to create a good sleeping environment for your baby. 2. Dietary factors: If the amount of milk fed to the baby at night is insufficient and causes the baby to feel hungry at night, or if the baby is overfed and suffers from indigestion or flatulence, it may cause the baby to cry easily at night, have difficulty in falling asleep or wake up easily. 3. lack of nutrition: this situation is mostly seen in the lack of calcium and vitamin D babies, the lack of the above nutrients will cause the baby in the night of the central excitability of the rise, become easy to wake up or difficult to fall asleep. Full-term babies do not sleep soundly easy to wake up, there may also be other reasons, it is recommended to go to the hospital, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.