First, . Second, Not sure if you remember all the sleep difficulty we had with DS (waking up 12 times per night for 11 months). We honestly never got a good solution and the only thing that helped was when he started walking (down from 12 to about 5). So, just to give you some ideas that we tried in hopes they work better for you than they did for us: white noise machine, cool room, lullaby music, very subtle vibrations on the bed, and my shirt with my "smell" on it in the bed with him.
SAHM to Pete and Repeat my "Irish Twins" - DD 12/06 and DS 11/07
Never argue with an idiot. He'll bring you down to his level, then beat you with experience.