A Clarkston man allegedly fell asleep while driving on Interstate 985 Monday afternoon, leading to nonlife-threatening injuries for himself and two passengers, authorities said. The three men were in a Toyota Avalon traveling northbound on I-985 after 4 p.m. Monday when the driver Suleman Ahmed, 35, failed to maintain his lane, according to the Georgia State Patrol. “(The car) struck the guardrail, became airborne,” GSP Cpl. Dallas Van Scoten said. “(The car) then vaulted and overturned in the median.” The car struck a cable barrier and came to a rest facing south on the highway.