I am wondering what is going on? My son , in the last two days has been unable to stay awake for more than an hour and a half . He gets up at 7:30am and wants to go back down at 9. Sleeps for an hour and then wants to go back down and hour and a half later. I have no idea whats causing this behaviour. His appetite is normal and he doesnt seem ill. Any ideas? He can usually go 3 1/2 hours between naps