There is no point in trying any sort of sleep training when you're not ready. In my experience, once you are ready it's fairly straight forward - and with my 3 it is like they have know that I really meant it and it hasn't been too difficult. I tried sleep training e when she was about 1, and she screamed solidly for 4 hours, 2 nights in a row, at which point I came to the conclusion that she had more stamina than I did.
![Tongue :P](https://smiley.babywhispererforums.com/Smileys/classic/tongue.gif)
I decided that it wasn't worth that to get her to sleep through, but when I did it at 18 months, the first night she cried for 1.5h, the second she whimpered for about 45 minutes and the third night she woke up, squeaked once, and went back to sleep! With m (who was an angel baby) all it took was me telling my friends in the morning that enough was enough and I wasn't feeding her at night any more and she never woke up in the night again!
![Tongue :P](https://smiley.babywhispererforums.com/Smileys/classic/tongue.gif)
If you do want to give it a go, do you think it is worth trying giving him a bottle of water? The theory is that it fills their tummies but in the long run it's not worth waking up for so they give up of their own accord. Haven't tried it myself, and I'm fairly sure I know what x would say if I tried giving him water instead of milk, but a lot of people say it works.