Oooohh, ok. Now I get it. If all she's taking is 4oz then that's fine, she's taking what she wants. Does she require a night feed every time she has a NW or is it a last resort for you? I'm willing to bet that once the A time gets sorted out, she'll be sleeping for much longer stretches, if not STTN. If she hasn't required a night feed until these NW's, she probably doesn't need any. You could always try giving her water but I think for now, just focus on extending the A time and see if that makes a difference.