My five month old LO can manage about 1h20 to 1h30 A time. I know this is short for his age but he seems to need the sleep. I have to wake him from his nap early to take his brother to nursery, so after a 45min nap, how long an A do you think he would need next time? we tried 1h today and have ended up getting him back up... i cannot decide if he is over or under tired!