Is there a reason why he can't sleep in his own room? At some point around that age both of kids had to transition to their room. The fact that we were right there just made it worse. So I would look into that first. With my DD just not having us right there helped her drop a night feeding and sleep through within a few weeks.
With my DS he did take a bottle during the night but we just switched it to water and that helped a lot. I think for now when he wakes up DH needs to attend to him. Rub his back, soothe him, give him his water, walk around the house with him but I would not bring him into the bed anymore.
Married to my soulmate Chris since 2004
Mama to big boy D
8/12/06, Big Girl M
3/7/10 and my sweet new boy E
:MM Optimus Prime, MM Time Lord and Supreme Dalek