Just wanted to offer some words of encouragement to you! My ds is 15 months old and had always been rocked to sleep. In January, he got sick, and we had to hold him propped up all night so he could breathe okay. After that, he started waking up about every hour or hour and a half wanting to be rocked back to sleep at night. We are almost at the end of our 4th week of GW.
I see your dp is sleeping in the nursery with Noah and staying until he settles. I have a mattress next to the crib in my LO's room. The first 2 weeks I slept right beside him and would talk to him, pat him, rub his back, hold his hand....to help him settle to sleep. I then moved to other side of mattress farther from crib and still talk to him, but no longer touch him. He is making great progress....takes anywhere from 10-30 minutes to fall asleep.
So, all this to say....hang in there! It does work! CONSISTENCY is the key!
Do you have a "sleepy phrase" that you say to Noah at night? This is helpful. We use, "It's time for night night sleepy boy." Also, does he have a lovey that he would like to sleep with. My ds loves his Gloworm. He also has an aquarium (not sure if that is what it is called) that has buttons on it. When he pushes them, it lights up and plays music and this seems to help him settle as well.
Hope tonight is a good night!