There are more reasons why babies can’t sleep soundly at night, it may be that they don’t have enough to eat, the environment is not suitable, lack of calcium and so on. 1. Not enough to eat: If the baby is breastfed, the mother’s milk is not enough to cause the baby not enough to eat, then sleep at night will not sleep soundly. 2. Inappropriate environment: If the baby sleeps in a noisy environment, it will also cause the baby to sleep uneasily at night, in addition, if the indoor temperature is too high or too low, or if the baby is covered with an inappropriate quilt, it will also lead to sleep uneasily. 3. Calcium deficiency: If the baby has a calcium deficiency, it will cause the brain and autonomic nervous system to be excited, and the baby will not sleep soundly at night. If your baby is not sleeping soundly at night, there may be some illnesses in your body, such as bloating caused by indigestion or itching caused by eczema, etc. These discomforts can also cause your baby to sleep soundly. If your baby is not sleeping soundly at night, you should observe your baby more often, consult a doctor in time to clarify the cause and treat the symptoms, and strengthen your baby’s care in normal times.