If the newborn continues to sleep for more than 4 hours without waking up to eat milk, can be appropriate to stimulate the child to get up, you can gently play the soles of the newborn’s feet, massage earlobes or gently rub the child’s back, breastfed children will automatically wake up to suck on the nipple, formula-fed children put on the pacifier will also eat milk. If the child eats normally, there is no problem. If the child does not respond to the stimulation or goes back to sleep quickly, it means that the child is not responding well, so it is recommended to bring the child to the neonatology department for a doctor’s opinion on the specific situation. In addition, if the child has spent a lot of energy before, for example, swimming, it is normal for the child to sleep a lot.