1) There was a guy sitting next to me in the bus. He dozed off and his head kept dropping on my shoulder.
2) There was a guy sitting next to me in the bus. He dozed off and his head kept falling on my shoulder.
Can someone please tell me if the above sentences make sense? They sound a bit awkward to me but I am not sure how I can put it in a better way. Hope you got what I intend to convey with these sentences.