Suggestions to help baby sleep longer and without a bottle?

My little guy is almost 6 months old and has gotten very dependent on a bottle to fall asleep. Now he’s waking up about every 2 hours, and we’ve been having to feed him each time to get him back to sleep.

I really don’t want to co-sleep because I use a CPAP and I’m not comfortable having the tubing around him.

Has anyone had success getting their baby to fall asleep without feeding them? Is there a program or method that worked that doesn’t make them cry it out? He won’t take a pacifier, and if I rock him to sleep and try to transfer him to the crib, he wakes up almost immediately when I put him down.

I’d love to hear what has actually worked for other parents!