My 5 month old is finally napping during the day! I am so proud because he is able to put himself to sleep...although with a bit of crying, which I don't mind. He can get himself to sleep, but the problem is is that it seems like he doesn't sleep for too long and that he gets a bit cranky, even after his nap. For example, this morning his nap was 1 hr. long and in the afternoon, he seemed to nap for about 40 minutes. Advice please! Do you think I should leave him in his crib longer to see if he falls asleep, encouraging maybe an hour and a half long nap, or do you think I should be maybe doing 3 naps as opposed to 2? Any other suggestions are welcome!