I know there was another thread about this recently but I couldn't find it, so thought I'd start a new one to report on trying out wake-to-sleep with DS aged 18 months.
He has been waking up at 4.50, 5.15 etc etc, which is killing me (and DH).
Last night I woke him at 0430 and changed his nappy - he looked very surprised then starting grinning and chuntering. I put him back in his cot with a bottle of milk and left him. He chuntered and babbled louder and louder for at least 30 minutes whilst I lay in the next room feeling more and more depressed (ie now we were having an 0430 start, even worse than before). Then suddenly about 0500 it all went quiet and he didn't wake up again till 0720 (in a happy mood). Praise be!
So we are trying it again tonight.