We have had our son on a flexible EASY since birth and started on the formal 4/4 routine yesterday. I need some help and advice. In the book it talks about "clock-watching" as we set the routine, but I find my son still waking from naps after 45 minutes and my attempts at PU/PD do not work to settle him. I have not tried the wake to sleep yet and will try that tomorrow. Do I need to make sure I follow the routine to the times or should I follow my son's cues when he is tired?