Don't know why i'm posting as I know there's no magic solution, but you never know - someone might be hiding one somewhere 
DS has always been a rubbish sleeper. His speciality is not going back to sleep for 2 hours once awake. It's not that he can't sleep - we can have weeks where 5/7 days he sleeps through - but so often he is awake for 2 hours in the night and rubbish at settling. Last night he did this twice aaargh.
We have done CC (DS is DC3) and CC worked well with the other 2 who are ok sleepers. Twice in fact, at 6 mo when we got him down to one night feed, and at 8 mo when i dropped night feeds. He doesn't even have bottles now, just his milk from a cup.
I have been pretty crap since xmas at giving him some milk (50% of wakes) to try to get him back sooner and he also has a music light that i tend to go in and switch on to pass the time! Last night tho i had to sit with my hand on his bottom to get him to settle - not done that for months.
Think i wil try to drop the music light and might try gradual retreat. Anyone had any success with that? I have pantley's book but no found it very helpful - the milpond one is better imho.