One outtake has Kevin Michael Richardson (Happy) ad-lib the line, "It's prostate exam time, fellas. Better run!"
Wynken, Blinken and Nod sail in a boat that looks like a giant clog. Their poem (by Eugene Field) states that they set sail in a "wooden shoe," which is later revealed to be a bassinet.
The Land of Nod looks similar to the setting of the classic Walt Disney short 'Lullaby Land.'