Maybe the inmates really are running the asylum.
A correction officer has been disciplined for dozing on the job after a colleague snapped a picture of her asleep while on post at a Rikers Island infirmary, officials said yesterday.
A clearly conked-out Nadja Green is leaning in a chair with her head back, arms folded, eyes closed and mouth open.
But even more alarming is an amused inmate seen hovering above her, mere inches from a set of keys that hangs from her belt.
The picture was circulated around the department, and a source e-mailed it to The Post.