I am having very similar issues with my 11 month old (I feed/rock/sing to sleep, trying to wean out of co-sleep as well). I totally understand the frustration and complete exhustion!!! especially with those party times in the middle of the night. We had some absolute shocking nights last week, ended up giving DS nurofen and he slept for 3.5 hours in his cot. First time since he was 4 months old. So I think that teething was adding to his sleep problems.

I'm sorry can't be of more help, except to say you are not the only one out there. I am going to go to Ngala (sleep school in WA). They tell me over the phone they don't do CIO or CC anymore so interesing to see what strategies they use. I will keep you posted if any work...