I’m the pacifier

My son sleeps in my bed and for the past few days he literally wants to suck on my nipple all night long and freaks out if I take it out of his mouth and roll on my back. It’s driving me crazy! He won’t take pacifiers at all I’ve bought so many different brands but he hates them. I’ve tried even switching my nipple for one while he’s asleep but that doesn’t work either. I don’t know what to do but it’s killing my back having to be on my side all night