Many infants do not go into a deep sleep even when they are lying on their backs. Infants at times are too stubborn and do not feel comfortable, especially if they have a blocked nose. In these cases, a humidifier can be kept in the room of the baby for moistening the air and to loosen the congestion in the baby. You can even elevate the head of the baby to reduce any discomfort that can arise from a stuffy nose.