A.H.
If you want to change anything about your babies routine then I'd begin doing it now. The longer you wait the more engrained your current routine becomes and it's what's expected. In my opinion 4 months is early for letting them go the night without feeding; we let our daughter decide her self when she didn't wake up anymore since I too am a stay at home mom and her wake up episodes took only about 15-20 minutes to do everything and get back in bed...so they didn't bother too much. She was 10 months when she stopped. I read "Healthy Sleep Habits, Happy Child" by Dr. Marc Weissbluth and really enjoyed it. Our little girl is the best sleeper! There are many opinions out there and everyone's different, so I would read a book and decide for yourself what works best. Good luck.