Need some help. My 14 month old sucks mine or DH's finger to fall asleep. It's becoming a problem. He will sometimes suck his own thumb but mostly relies on ours. He's waking 2-3 times a night still - had one bf in night. Have a feeling the finger sucking is a problem now. Plus he gulps down air when he does it so then wakes to burp. Is cold turkey the only way? Any ideas how many nights of hell it might be?