My little boy will be four months in less than a week. I was wondering what everybody's little ones sleeping pattern is like at this stage. I let him dictate when he needs sleep. He has about 2 hours in one go during the day, with 3 20 min catnaps. He goes to sleep at about 8:30pm, wakes at 2:30am for feed, then 4am for food. Then he wakes up at 6am. Does this sound alright??