Early to rise, early to bed (Yes, the other way around). The earlier they wake up, the more tired they are, and the earlier they will fall asleep.
Q: Son's friend is a Muslim and my son wants to have a sleepover at his house. They're super sweet. Is it ok? A: From experience: My friend's brother always goes to his Muslim neighbour's house. This neighbour then becomes his godfather when he is in upper primary. Now, this friend's brother who used to be a Christian has officially converted into a Muslim. They converted him secretly without his parents knowledge. His parents only found out years later when he was in his late teens. These neighbours make a super sweet Muslim family. And this is the result you get for spending time with them.