My little girl will be 7 weeks tomorrow. Today, every time she's woken up she's eaten and gone right back to sleep. This is NOT NORMAL for her. She's usually awake most of the day, more than I ever thought a baby would be. She usually wakes up every 2 or 3 hours through the night to eat, but last night she slept 6 hours straight! Is this the time for a growth spurt and a lot of sleeping or should I be worried? She doesn't have a fever, I checked her temperature. Other than the constant sleeping I haven't noticed any other differences.