Wheres a good hotel to stay with a baby in Vegas?

We are going for a wedding and want to be on the strip and somewhere relatively inexpensive. Our son is about 5 months old and we need somewhere that isn't to smoky, or that we can easily get to the strip without having to walk him through the cigarette smoke. It doesn't have to be smoke free, (I'm aware that would be impossible!) but avoiding as much smoke as possible would be good.