Because society needs nursing services around the clock, nurses must work irregular hours and at night. This leads to disruption of circadian rhythms and to sleep deficits that can affect work readiness and the health, safety, and well-being of nurses. Long shifts, shift rotations, double shifts, and evening and night shifts pose short- and long-term health and safety risks for nurses, as well as danger to their patients. Sleep-deprived nurses are also at risk for car accidents. According to the AAA Foundation for Traffic Safety, less than four hours of sleep in the past 24 hours increases a driver’s risk of crashing 11.5 times, compared with just 1.3 times after seven hours of sleep…..