My 11 week old DD has been doing consistant 45 minute naps for the first few naps of the day. Prior to that she wouldn't even do that. I'm trying to determine what the issue is. It seems that she is only able to stay awake for 40 minutes in the morning before starting the wind down. Probably 45 minutes before she is actually sleeping. It seems like such a short awake time but if she doesn't get a good first nap then the rest of the day is the same. She wakes after 45 minutes and is ready to get up and I'm rarely able to extend it. Any ideas?