Thought i'd add my two cents. My dd is 8 wks, and her naps are all over as well. She usually has one good 2 hr nap a day, the rest are about 45 min to an hour. She still eats every 2-3 hrs, but my 2 yr old ds was the sam even at 3 mths. She usually goes to bed around 7, sometimes earlier as we have a lot of trouble getting any cat nap at all. We had tried the df, but after a week of not making a difference we have stopped for a while, and will try again soon. She is up twice at night, sometime between 12 and 2, then again around 4-5. She eats and goes right back to sleep, then is up for the day between 6-7.