My baby 3 months old now,,, He sleeps only 8 to 10 hrs in a day rest of the time he will be playing,,,in the sense he will be active ,,,, Also when he is Awake he wants to fed every one hour,but when he sleeps he wants to fed every three hours,,,,Why is this???Also sleeping for 8 to 10 hrs is enough for 3 months old baby?