Is there anything new in his routine? He is still at the age that many children will begin waking again at night. They can get into a routine with waking too. When he wakes is he stimulated by anything? It may just be his natural cycling right now. My only other thoughts are around adrenals and liver. You could email Robert@gethealthyagain.com, and see if he comes up with this for your son. Are you giving him the liver elixir or the HPA currently? He may need them. You could also ask Robert to see if your son tests well for his elixir called Restful Sleep. It can be very helpful.