It's truly amazing - and scarey - the amount and variety of noise a sleeping baby can make. Ds grunted and groaned a little in his sleep for the first few weeks, and then settled down to being a very quiet sleeper. It never seemed related to any discomfort or wind, and he really was a phenomenaly windy boy. Now (3yo)he sometimes groans in his sleep if he is ill and often mumbles or even talks. Dd, on the other hand, could make more noise than my room-shaking snorer of a dh. Again, no connection to discomfort or wind. As well as snoring, she had stridor, which isn't a 'condition' as such, it just means that until the baby gets older and stronger, they make weird noises when they breathe especially when they are fully relaxed - dd buzzzzzzed.
So, unfortunately, I think you'll just have to wait for him to mature and make a little less noise. Sorry. Dad will probably learn to sleep through it, but because you're bf and unconsciously listening out for his hunger, you may not.
BTW, we used dummies for both of ours, but didn't let ds have his for sleep, only for wind and comfort during the day. With dd we let her have it for sleep as well...a BIG mistake. It made no difference to the stridor, although it did reduce the snoring as long as she was suckking, and totally destroyed her sleep and ours. By all means use a dummy during the day if you want - but not for sleep. That's my opinion, and loads of people will disagree!