A Manhattan subway conductor was head-butted by a passenger late Saturday when the motorman tried to wake him up, police sources said.

The 65-year-old train operator tried waking the snoozing passenger as the Q train pulled into the 57th Street/7th Avenue station around 11:30 p.m.

The stretched-out straphanger — angry about the wake-up call — head-butted the worker and ran off the train, sources said.

The victim reported the incident two hours later at the Stillwell Avenue station. He was taken to Coney Island Hospital for minor injuries to the right side of his face.