my 6 mo seems to love staying up later. when i put her down to sleep at 7ish she is up and ready to go again by 8pm. but when I give her a later last nap (6pm or so) she will wake from that nap around 6:30 and then not go to bed until 8:30 or 9pm and then sleep 8-9 hours straight, feed and go back to sleep for a couple more hours. why is this? it is like she needs to be really tired to stay asleep for the night or something..
