Babies wake up frequently at night for the following reasons: 1st, it is improper care, the baby has not eaten enough, the diaper is too wet, wrapped too tightly or the clothes, bedding is not comfortable, the indoor light is too bright, etc.; 2nd, the room temperature is too high, the baby’s nasal mucosa is too dry, or there are nasal stools resulting in poor ventilation; 3rd, it is whether the baby has parasitic infections, such as pinworms; 4th, it is the baby has indigestion, or If a child older than 6 months old wakes up frequently at night, he or she can be tested for trace elements, because lower blood calcium can increase the excitability of the plant nerves and lead to sleep disturbance in the baby. Baby before playing too happy, sleep at night will also sleep restlessly.