My 13 week old DD does pretty much the same thing. Awake time during the day is 1.5hrs before the next nap. I am slowly trying to stretch her out, but my DS couldn't handle two hours until 4 mos. I figure she's the same. That is normal because when they finally can handle two hours awake....it's time to move to 4 hour EASY. My DD also, goes down by about 7pm and wakes at 6:30am with a 10:00 DF. I can't wait to get rid of the DF, but right now she seems to need it. you sound like you have an easy going baby!