I have a 5 month old girl - she goes to sleep on her own and sleeps in her crib from 7pm to 7am but typically wakes up 2x (once around 11-12 and once around 330-4; a handful of times she only wakes up once around 3). I'm going back to work in a month and would really like for her to only wake up once (and ideally 0!!) in the night. Any tips? I have started to shorten her nursing session which she seems fine with .... but she is still waking up. Thanks!