My 15 yr old has the same issues. He wakes during the night and has a hard time going back to sleep. We are currently trying melatonin which occasionally helps, and sometimes Benadryl, but neither necessarily help him sleep through the night. I’ve also set up the wifi/cellphone data so that he cant use it after a specified time of night (otherwise he would be looking at/chatting all night). We are now going to see a sleep specialist, who we hope will agree that he could benefit from a sleep study to determine if he has sleep apnea. His older brother has it, and sleep issues run in my husbands side of the family. I wish I had some better tips/advice.