Any ideas ? My baby boy is 5 mths he sleeps from 7 till 12 goes to sleep himself in his crib but after 12 wakes up every 2 hours .he sleeps 1 hour during the day and is happy as Larry 24/7 .breastfeeding at 3 am and no issue with feeding or sleeping just won't last more than 2 hours after 12 why??? Thanks in advance.