We did that a LOT. Every growth spurt, and for all the time that the earthling was still relying on breastmilk when he really needed solids (like, after he turned one, his diet was still 90% milk because of his food aversion, so he nursed all the time), BB and I switched off every night. I still remember the awesome feeling of, okay, now is UNINTERRUPTED SLEEP TIME when I fed him for the last time at three in the morning and made the official handoff to BB.

Yay for everyone being alive! And, I hope, mostly sane!