Im a mother of 3 months old baby boy, my son doesnt sleep whole day in 24 hours he is not even sleeping for 1 hour he is active and alert, due to this he gets cranky daily,this is common but how come my baby is active whole day in 24 hours . And often even if he try to sleep and close  his eyes he suddenly gets scared and opens his eyes. When I consulted my pediatric he told me that how come he is awake whole day it is impossible. AS he grows he might sleep some doctor say I want to know from which month baby will have proper sleep cycle Kindly suggest.!!!