Babies do not wake up at night whether it is necessary to wake up to eat milk need to be based on the baby’s age in months. Babies under 3 months old can be considered to be woken up every four hours for feeding, babies between 3 and 6 months old usually only need to be woken up once, while babies over 6 months old usually do not need to be woken up for feeding at night and can sleep through the night. Generally speaking, babies will automatically wake up for feeding when they are hungry, but some babies sleep more deeply and will not wake up at night even if they are very hungry. 6 months and above babies generally do not need to be woken up for feeding at night as they have already had complementary foods added. However, the specific situation depends on each baby’s specific circumstances, some babies do not eat milk even when waking up.