Action Comics (1938) #483
"Sleep No More!" is written by Cary Bates with art by Curt Swan and Frank Chiaramonte. Cover by Rich Buckler and Dick Giordano. Talk about your triple threats! The world's population hasn't slept in five days. The Justice League of America are trapped in limbo and Amazo, the super-android, has broken free from his outer space prison and is headed for Earth. Alone against a creature with all the powers of the Justice League, Superman has no chance. He contemplates his options as he speeds Lois Lane and Amazo's creator Professor Ivo back to Earth in the Supermobile. The JLA listen in to the world crisis from their other-dimensional prison but feel helpless to escape, let alone do anything about the world's plight. As the sleep-deprivation finally starts to take its toll and accidents begin to escalate, Superman rushes in to do what he can and finds a strange ally: Amazo!
Amazo confesses he is curious of how the world's sleeplessness may be related to his own waking state which he wishes to reverse (and return to his blissful coma-like state). Superman postulates that the red radiation that awoke Amazo also permeated the world's flora, and as it's breathed back into the atmosphere by plants, it keeps humans perpetually awake. Amazo believes Superman's theory but says he's lost too much power to return the JLA from the limbo he's placed them in. Fortunately, the JLA have escaped on their own, having combined their will power with that of the Green Lantern's. Together, Superman and the JLA defeat Amazo and use his absorbing abilities to soak up all of the residual red radiation keeping mankind awake.