Sleeping patterns for a 2 month old

What is your 2 month old's sleeping habit for the day time? My little girl sleeps from around 930 pm to 8 or 9 am (with feeding breaks), then she's up for about an hour before she sleeps a little more and still takes several naps during the day, ranging anywhere from 30 minutes to a couple hours. When she is awake, she is super alert and playful. I'm sure it's normal, just wondering how long this stage will last?