According to the 'books' she should have about 4 1/2 hours of sleep a day between 7am and 7pm. My LO has about this but not in the usual 1 1/2 hour naps. More like 2 hours in the morning, then the other 2 1/2 are over the next 2 naps and a catnap. You should aim for about 1hr 10 mins A time from the time she wakes to be put down, but i find that for her first nap, she is up no longer than 45 mins, but in the afternoon she has more like 2 hours A time, so it varies with the bub (obviously)
My LO also wakes between 3 -4 for a feed, but i think this is normal at this age. Well actually i think we are doing well only having one NW.
As for settling, i am not sure, but maybe you could post your routine and one of the lovely experts will have a look for you.
Hugs Helen xxx