A. Roger Ekirch (born February 6, 1950, in Washington DC) is University Distinguished Professor of history at Virginia Tech in the United States. He was a Guggenheim fellow in 1998. He is internationally known for his pioneering research into pre-industrial sleeping patterns that was first published in "Sleep We Have Lost: Pre-Industrial Slumber in the British Isles" (The American Historical Review, 2001) and later in his book At Day's Close: Night in Times Past (W.W. Norton, 2005).
- "Poor Carolina": Politics and society in Colonial North Carolina, 1729-1776. North Carolina University Press, Chapel Hill, 1981. ISBN 080781475X
- Bound for America: The Transportation of British Convicts to the Colonies, 1718-1775. Clarendon Press, 1987.
- Sleep We Have Lost: Pre-Industrial Slumber in the British Isles, The American Historical Review, 2001.
- At Day's Close: Night in Times Past. W.W. Norton, 2005.
- Birthright: The True Story of the Kidnapping of Jemmy Annesley. W.W. Norton, 2010.
- American Sanctuary: Mutiny, Martyrdom, and National Identity in the Age of Revolution. Pantheon, 2017.
- "A. Roger Ekirch". History.vt.edu. Department of History, Virginia Tech. Retrieved 2017-08-08.
- ""Sleep We Have Lost" Commentary". History.vt.edu. Department of History, Virginia Tech. Retrieved 2017-08-08.
- Hegarty, Stephanie (2012-02-22). "The myth of the eight-hour sleep". BBC News. Retrieved 2017-08-08.
- Gideon Lewis-Kraus (2005-07-24). "'At Day's Close': The Dark Ages". The New York Times. Retrieved 2017-08-08.
- "Review: At Day's Close by A Roger Ekirch | Books". The Guardian. 2005-07-30. Retrieved 2017-08-08.