This is such a tough & stressful situation. I had good luck using The Sleep Easy Solution book. I also read The Happy Sleeper, but went with Sleep Easy because it went into a little more detail about special situations like still wanting your kiddo sleeping in your room, travel, sickness, teething, etc. I also felt a little more supported & prepared with the method in Sleep Easy. Both books are very EASY reads so you can start implementing whichever method you choose quickly.
Re: How to stop night feeding of 16month old?