Yep, breastfeeding. And co-sleeping. We dun messed up
However, you're correct about leaving the wife out of it, not just because she can't handle it (though, she can't), but because when my daughter senses wifey nearby she can't be put down in her crib, unless she's just exhausted.
When my wife travels for work, as she is this week, I can put her down no problem. She still wakes up twice a night, but she is much easier to soothe back to sleep and doesn't need to be fed. If the wife is home she won't go back to sleep unless she nurses.
I long for that 12 hour sleep-fest I hear is eventually coming...