Our 14 month old is sleeping pretty well these days (last night down at 8pm, woke at 7 for a drink, still in bed with mum when I left the house at 8am!)
However we do have a problem with him losing his pacifier overnight.
For a start we only use the pacifier as a cue when we feel that he needs to chill - so it forms part of the night time routine. Pacifier, cuddle, story, bed, sleep.
Works pretty well. Often he will not have the pacifier in his mouth when we check on him before we go to bed.
Trouble is, if he wakes in the middle of the night and the pacifier has gone out of immediate reach, then he will cry and wake us up. Returning it to him and he will generally fall straight back to sleep.
We feel that if we could stop using the pacifier then perhaps we would get better sleep.
(He will sleep in the car and being cuddled without one, just registers it as a cue to settle down when not completely exhausted)