My DS17 Months has had a massive regression this last week. I guess this is the 18 month regression???
He's generally an ok sleeper apart from being an early riser (5/5:30am starts). We've tried various things to correct this but nothing has worked yet!
Anyway in the last week he's started waking at 4am and will not go back to sleep. He's also fighting naps. Used to pop down, give dummy, say it's night night time and to sleep he went. If he fussed or cried it was never for more than a minute or so and usually a pat on the back and saying it's night night time and off to sleep he went. Same with middle of the night wake ups if any.
Now he just wails and wails and wails and will not go to sleep! Wouldn't go down for his afternoon nap and finally brought him in bed with me for his nap after over an hour of controlled crying.
I've read that you have to "ride it out" and not go back to any old habits or develop new associations but what are you supposed to do?!! Controlled crying has always worked for us very rapidly (ie not very much crying at all!).