Hi there
I don't think you need to feel bad or worry about resettling with the dummy. If it works and he then sleeps til 5ish, it was probably not a hunger driven NW. They often have a strong need to suck as it comforts them, but may not need milk. Of course some people prefer not to use dummies and are afraid of the baby getting dependedt on them. I personally think dummies are great and that most babies love to suck and I'm grateful that I have an alternative (to me
for them to suck and sooth with. I do remember tying myself in knots too though, wondering what was the best thing to do, give the dummy or wait for them to start sucking their thumb or fingers. For us it worked out fine with the dummy, and when about 6-7 mos they can start to learn to find it themselves. If it does your head in before that, it can easily be weaned, so my thoughts would be to keep doing what you're doing and don't feel bad. If he was truly hungry he would let you know and wouldn't accept the dummy as a sucking substitute
Vick