New York City, 1919. Evelyn Moore is a young legal secretary who slips eighty-four years into the future every time she falls asleep. After a terrifying mugging in an alleyway, Evelyn seeks advice from a budding therapist, Thomas Allen, who is fascinated by her dream life. The two soon discover Evelyn is not the only person who travels between two lives during sleep, and they must race against time to find answers, slowly falling for each other along the way.

In her other life, Evelyn is a college student in 2003, protesting the Iraq War with her classmate, Will Jenkins. Convinced her 1919 life is a dream, they fall in love, and when Evelyn's dreams intrude on her life, Will joins in the search for a solution.

When her two lives begin mirroring each other, Thomas and Will both fight to keep Evelyn with them, knowing they have little time to protect her. Which of her two lives is real, and can she save herself in either of them?

Find out what happens when dreams and reality come too close for comfort, and what it really means When Evelyn Sleeps.