My girls are 4 months and just started being awake more often during the day a few weeks ago. They used to literally eat and go back to sleep until it was time to eat again. Mind you, they were premature, however all that sleep means that baby is growing! It seemed that they started sleeping 9-11 hrs during the night and would stay awake to play during the last month. Even then, if I had to guess I would say they are only awake for a total of 5 or 6 hrs during the day.