The Civil War brought many forms of upheaval to America, not only in waking hours but also in the dark of night. Sleeplessness plagued the Union and Confederate armies, and dreams of war glided through the minds of Americans in both the North and South. Sometimes their nightly visions brought the horrors of the conflict vividly to life. But for others, nighttime was an escape from the hard realities of life and death in wartime. In this innovative...