Newborns sleeping with their hands up is generally the baby’s sleeping posture, there is no good or bad argument, generally do not need additional treatment, can be temporarily observed. Due to the newborn’s nervous system development is not perfect, the control of sleep posture is not mature, sleep with the phenomenon of the hands up is mostly a normal physiological phenomenon, with the gradual development of the brain stabilization, this phenomenon can gradually disappear. In addition, the newborn’s ability to adapt to the external environment is relatively weak, the environmental temperature is too cold or too hot, noise interference, etc., may lead to the newborn’s lack of a sense of security, the above sleep posture. Parents are advised to strengthen daily observation when caring for their newborns and seek prompt medical attention when abnormalities are detected. Newborns sleeping with their hands up is generally the baby’s sleeping position, there is no good or bad, if the baby sleeps with his hands up with other symptoms of discomfort, you need to immediately consult a doctor to identify the cause of targeted treatment.