1.Sleep problems Case BOX: My baby was born 22 days ago, always sleeping during the day and waking up at night, and constantly crying, worried to death. 2, the newborn baby sleep characteristics of the newborn baby most of the time in the sleep state. Generally, newborns sleep for 18-20 hours a day and night. But because of the newborn shallow sleep for a long time, shallow sleep can appear facial expressions such as smiling, frowning, pouting or making strange faces, sometimes stretching the limbs a little, humming, uneven breathing speed, etc., these are normal physiological characteristics of newborns. 3, the new mother note: do not disturb the baby’s sleep within three months of the baby exists physiological jumping phenomenon, which is a normal phenomenon caused by immature brain development, do not need to deal with. At night when the baby sleeps, do not because there is a little movement, fear that the baby is hungry, thirsty or wet, too much care or attention to the baby, which will instead disturb the normal sleep of the baby, is not conducive to brain development. 4, love TIPS: newborn babies sleep 18 to 20 hours a day, 2 to 3 months for 16 to 18 hours, 5 to 9 months for 15 to 16 hours, to 1 year old close to the adult life pattern.