1.) His wife doesn’t work, or works just to get out of the house.
2.) Athletic performance is much more prone to suffering due to any number of factors, including diet, exercise, and yes, sleep. No sports organization would tolerate paying millions to a player whose performance is suffering because he couldn’t find a solution to this situation. Baseball players play pretty much every day for 6 or 7 months, so exhaustion is already a concern.
3.) In any case, this is only during the actual season, and not a permanent situation.
4.) Do you think his wife minds, really? Would you mind having to take over the night-time responsibilities exclusively for 6 months if it meant that your husband could go on making the family a couple million dollars? Consider it a job, for which you make $7.7 million for 6 months of work. Sound fair enough?
5.) Yes, there’s a cultural difference.

Great point Niki. We shouldn’t be so quick to judge (and I’m talking about myself given that I made a snarky comment above!) when there may be cultural differences at the root.

This is a cultural thing. My mother is japanese and this is the way it is in Japan. My cousins got NO help from their husbands. They get help from other female relatives ie grandmothers, sisters, friends etc. Parenting is the mother’s “job”. The fact that he even changes diapers and helps out during the day makes him very progressive!

Ha, seriously. What working parent doesn’t need sleep for their job? Classic.

And why doesn’t his wife need sleep for HER job? Sorry, I just really don’t like when dads don’t help with babies during the night.