Nightmare and Sleepy are wrestler Bob White and his teenage manager, Terry Wake, respectively. They are just regular Joes who put on costumes and fight crime without super powers or gadgets.

Most of their superhero careers featured Nightmare wearing a skeleton-like costume and Sleepy dressed like the Grim Reaper. The skeleton's designs were lined with phosphorus, which created the illusion of moving, glowing skeleton in the dark.

Nightmare and Sleepy later switched costumes.

*Clue Comics #1-12

*[http://www.internationalhero.co.uk/n/nitemare.htm International Hero]
*[http://www.comicvine.com/sleepy/29-18741/ ComicVine]
*[http://fourcolorshadows.blogspot.com/2011/03/nightmare-and-sleepy-alden-mcwilliams.html Four Color Shadows]
*[http://muttermumblegrumblegripe.blogspot.com/search/label/nightmare M.O.D.M.]
*[http://awesomerthanthou.blogspot.com/2010/12/just-plain-crazy-comics-nightmare-and.html Awesomer Than Thou]
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