During the Fall 2013 semester East Carolina University's main library piloted 24/5 hours of operation by opening on Sunday morning and not closing until Friday night. This article details the planning and execution of the pilot program, as well the findings from the data collected during the overnight period by people-counting cameras and a university identification card reader. The data reveal library usage during specific days and hours of the overnight period, usage during specific periods of the semester, and the demographic information of overnight undergraduate and graduate student users.