When our first daughter proved capable of crying for 45 minutes without reloading, we gave up and let her sleep in our bed. When our second daughter showed up three years later, we didn't even bother to set up the crib. She wasn't too vocal and seemed a better candidate for Ferberization, but we'd found we liked sleeping with a baby. For our species, the natural nighttime arrangement is for kids to sleep alongside their mothers for the first few years. At least, that's the norm in hunter-gatherer societies, the closest things we have to a model of the social environment in which humans evolved.
Mothers nurse their children to sleep and then nurse on demand through the night.
Sounds taxing, but it's not. When the baby cries, the mother starts nursing reflexively, often without really waking up. If she does reach consciousness, she soon fades back to sleep with the child. And the father, as I can personally attest, never leaves Z-town. That doesn't necessarily mean it's bad.