St Nicholas's Hospital was a London hospital important to the Tenth Doctor because of events there on late Christmas Eve 2006. On that evening, a young boy named Daniel Francis Thompson struggled for his life in the A&E department, after a car accident at around 9:30pm. Thus, by the stroke of midnight on Christmas Day, 2006, he was able to be at Dan's bedside — unquestioned — so that he could call Daniel out of his coma. (PROSE: Deep and Dreamless Sleep)