my dd is 13 weeks and weighs 15 lbs. currently feeds at 6 30pm, sleeps 7ish to 10ish and 11ish to 7amish. i know this is pretty good, but i am looking to extend this eventually. do we just feed slightly earlier every evening at the10pm feed and see what happens? she is bf only, although with bottles of expressed as well. any advice from people who have had a similar routine would be appreciated.