jlbarnett requested a repost of this story. Took me a while, because SO hard to pick which delicious panels to include.
Writer: David V. Reed; Artists: John Calnan, Dick Giordano From Batman 303, 1978: "Batman's Great Identity Switch!" AKA, Bruce Wayne, Billionaire Ass-Kicker for JUSTICE!*
Batman leaves the Gotham Museum...
This story is very focused on Batman's nap schedule. He takes another nap later. (Not appearing in this post.) Also, Good Morning, Batman!
And then more cracky problems ensue until finally, Alfred (who else?) fixes everything. *Title courtesy of fungo_squiggly