I think it's so sad that if he woke up having a nightmare he would be all alone and couldn't get to his mum and dad. Also not nice that he is left till 7am if he has been awake for 2 hours already on his own. Couldnt they let him into their bed for cuddles for those last 2 hours. I understand the desperation of the parents and don't totally disagree with doing this but could never do this myself and I think they were a bit over the top in a selfish way regarding leaving him in the morning until 7am etc. I would and do co sleep if my kids need me and they are now 11, 8 and 6 year olds. Then we chat if its getting too often and affects my sleep/mood and say "hey guys you all really need to stay in your own beds so we can get a decent sleep".