My 13 mo is now takes one nap a day, unfortunately it is too short. We got back from a vacation with a 3 hour time difference a few weeks ago and it has gotten worse. She used to nap for 1 hour and 15 minutes, but now only naps for 55 minutes. She goes to sleep on her own for her nap and at bedtime, but cries and cries if I try to have her take a 2nd nap. She goes to bed around 6:45 and wakes up at 6:00 am. Her is usually around 11 am. She is a very light sleeper. When she wakes up from the nap she stands up in her crib and starts to cry right away. Should I just leave her in there and she if she will eventually go back to sleep? I think she is pretty tired, but has never been a good/long sleeper. Thanks!!!