Comic Title: Action Comics #344
Publisher: DC (National Periodical Publications, Inc.)
Address: 575 Lexington Avenue, New York, NY
Cover Date: December 1966
On Sale Date: October 27, 1966 Newsstand Date October 27, 1966
Source: Direct Currents, Swing with Scooter #4, Page 17

Copyright Date October 27, 1966
Source: Library of Congress, Periodicals 1966

Frequency: Monthly (semi-monthly, March)
Cover Price: $0.12
Page Count: 32
Editor: Mort Weisinger

Title: "Superman's Nightmare Dreams"
Pages: 12

Feature(s):
Superman (of Earth-1)

Writer: Otto Binder
Artist: Wayne Boring

Feature Character(s)

• Superman (last appearance in World's Finest Comics #163; next appearance in Superman's Girl Friend, Lois Lane #71)

Guest Star(s)

• Batman (last appearance in World's Finest Comics #163; next appearance in Detective Comics #358)

Supporting Character(s)

• Perry White (last appearance in Action Comics #343; next appearance in Superman's Girl Friend, Lois Lane #71)

Cameo Appearance(s)

• Robin (as a statuette)
• Joker (in a picture from Batman's portable rogue's gallery)
• Catwoman (in a picture from Batman's portable rogue's gallery)
• Riddler (in a picture from Batman's portable rogue's gallery)
• Penguin (in a picture from Batman's portable rogue's gallery)
• Mad Hatter (in a picture from Batman's portable rogue's gallery)

Synopsis:
Batman and Superman experiment with a machine capable of switching minds in Superman's Fortress. While his mind is in Superman's body, Batman finds it difficult to control his super powers. Batman uses super breath which damages the lab and knocks Superman over. Items begin spilling from Batman's utility belt. After they clean up the mess, the two return to their own bodies and agree to resume experiments later.

Superman begins having super-nightmares a short time later. In each of the dreams Superman finds himself threatened by strange symbolic menaces. After three such nightmares, Superman returns to his Fortress with Batman. He discovers that he was exposed to Red Kryptonite when in Batman's body. The dreams were caused by a combination of the Red K and pictures of Batman's foes. The symbols in the dreams represented the Joker, Riddler, and the Penguin.