All West Wings face fatigue at some point, but the Obama team has had a particularly frenetic start, the result of inheriting the worse economic crisis since the Great Depression and the team’s own seemingly chaotic drive to push an agenda that includes the creation of a new health insurance system, auto bailouts, Middle East peace, nuclear nonproliferation, two wars and education reform…

Chief of Staff Rahm Emanuel arrives at the House of Representatives gym at 5:30 a.m.; his top aide, Sarah Feinberg, starts her workout at a Water Street gym at 5:15 a.m. By 5:30 a.m., the White House Bulletin — a compilation of political clippings from newspapers and Web sites — appears in inboxes and on BlackBerrys, demanding attention. By 7 a.m., West Executive Drive between the White House and the Eisenhower Executive Office Building is filled with staffers’ cars…

It has only been six months for Obama’s team, but almost all of the president’s top and mid-level aides took their posts straight out of the longest presidential campaign in history.

Obama is now testing the limits of his staffers’ endurance. So far, there is a palpable sense of pride in the West Wing that treaties are negotiated, complex legislation is crafted and banks are bailed out — all on very little sleep.