In Invisible Man, specifically in the prologue section, who are the "sleeping ones"?

Invisible Man, by Ralph Ellison, tells the story of a narrator that lives within a racist white world.  The narrator mentions sleepwalkers in the prologue to the novel.  The prologue revolves around the narrator listening to Louis Armstrong, while reflecting upon the event that has just happened at night in the cover of darkness. 

The narrator is confronted by a white man who hurls insults at him.  The narrator becomes very upset and angry...

Invisible Man, by Ralph Ellison, tells the story of a narrator that lives within a racist white world.  The narrator mentions sleepwalkers in the prologue to the novel.  The prologue revolves around the narrator listening to Louis Armstrong, while reflecting upon the event that has just happened at night in the cover of darkness. 

The narrator is confronted by a white man who hurls insults at him.  The narrator becomes very upset and angry with the man, who is one of the sleeping ones.  The narrator considers attacking the man with a knife, but changes his mind.  The sleepwalkers, or sleeping ones, refer to white racist society.  They sleep through life unless awakened by violence towards others that do not conform to their world order. 

The man who confronts the narrator in the prologue fits the description of the sleepwalkers perfectly.  This is because in the next morning's newspapers, the incident is described as a mugging, with the narrator as the perpetrator.  This is an example of the sleeping ones who refuse to awaken to the reality of racism.