Hi there,
If you are finding he's waking up more with a DF, maybe stop giving him the DF altogether and he may sleep longer? Also, if you're finding you have to give him the paci at night for him to get back to sleep, the paci could be a prop. I am not sure why he will wake more frequently with a DF one night and not the next... it may have something to do with his daytime sleep? Does he sleep well during the day? Did you want to post your EAS?