A few more random thoughts:
I never got the reference to "Sleeping Pawn" in the end crawl of the first episode - until I read this script and in scene 45 it mentioned "Sleeping Faun"; Googled that and found it referred to a statue of a sleeping youth carved in 1870 by American sculptress Harriet Goodhue Hosmer. So it was a little play on words that passed over my six-year-old head.
Nap and Snooze as originally conceived and described are similar to the somnambulist character in
The Cabinet of Dr. Caligari which IIRC Ellis St. Joseph said was an influence on his script. Not surprisingly, their scary-looking appearances were changed more to your standard issue humorous henchmen.
Difference #2: Scene 39 in the first draft, Sandman says "I'll be the second-richest crook in the world! What am I saying? I'll be the
richest!". In the final draft, he adds to that at the end: "Even richer than the Penguin!" (I never knew the Penguin was supposed to be wealthy?).
Both scripts describe Sandman as wearing a black monocle and being bald (depending on who played him). Add to that the constant "Ho! Ho! Ho!" laughter and big self-adoring ego, and it makes me wonder whether St. Joseph was thinking more along the lines of Otto Preminger rather than Robert Morley?
Difference #3: Scene 151 in the first draft ends with Commissioner Gordon on the phone: "(roars) Get me Police Headquarters". Final draft adds "Operator's Voice answers: 'You may dial that number direct.'" Sixties phone joke...
Finally, the character of Sleeping Beauty. Was she a somnambulist too, albeit a somewhat more self-aware one? Hard to say. The "vague" "Bye-bye, Robin" and "Bye-bye, Batman" make me wonder. What gets me, though, is scene 169, where things take a sour turn:
No other way to say it - Sandman's pimping out his own daughter after perhaps turning her into a sleepwalker. Nasty stuff (and one of the reasons for the rewrite?).
So I do like this script at least in some ways, but I'm happy with how it turned out in the end. And it gave me a lifelong appreciation for Michael Rennie.
P.S. Speaking of endings: If it ended like the first/final drafts with Sandman getting a dose from his own stethoscope, it certainly would have been fitting - and, it just so happens, exactly like the villain fish(!) Croaker ended up in the
Space Ghost episode "Space Sargasso" with a dose of his own purple sleep mist.
However... how about if at the end of "The Catwoman Goeth", B&R run over to the vat of noodles to find that Sandman...
has drowned? Then J. Pauline wakes up and enters, and stammers, "It was an accident! I SWEAR it was an accident!"

"To the medical eye, such childish claptrap means only one thing, young man: You need some sleep."