My young lad has suffered from complete sleep reversal for about 18 months now. It came on gradually with him being unable to fall asleep later and later until he got to the point in the last few months where he rarely fell asleep before 8am in the morning, with the result he was sleeping most of the day. Anyway he was desperate to try and get back into some kind of sleep rhythm so a few weeks ago he started experimenting with forcing himself to stay awake longer and longer during the day, hoping to push his sleep time towards more normal hours. He has now managed to get to a point of sleeping from about 8pm and then wakes up about 4 or 5am in the morning. The thing is that he is totally exhausted during the day with this regime and I wonder is he doing more harm than good or should he just keep persisting with it? Anyone got any experience with this?