With our first she slept all of the time. We were living in Japan at the time and the nurses in the hospital got really mad at me because I wouldn't wake up in the night to nurse. Well, why would I wake up - she was sleeping through the night! (Yes, she stayed sleeping through the night, it wasn't a fluke thing.) And she also took 2 2-3 hour naps a day! But, when she was awake she was always very observant and loved to interact with anyone who would look at her. She is still, at age 6 one of the most outgoing and friendly kids I know.