Might give it a go, and see how much of a diference it makes. I dont mind his 4 hour sleep routines, as generally, overnight, i can get him back to sleep within 45min of him waking up, 2 hours is abit of a joke.

With the boiled water - they say to only hang on to it for 24hours. But, still, if you hang onto it for longer, its still gotta be better then tap water.