DS 7mo has gotten into a chronic state of overtiredness and I don't know how to help him. He had been in a routine of waking around 8am, napping for 1-2hrs at a time, usually 2 hours after waking from his previous sleep, three times per day and going to bed around 8.30pm (he was showing signs this was getting too late for him). Since Christmas he has fought all his naps and bedtime too. He screams when I encourage him to nap and often a bedtime too. His naps are often too short now too, sometimes only 15minutes and he has been waking in the night which he hasn't done for months. How do I help him get out of this horrible situation?