Nurses sleep nearly an hour and a half less before work days compared to days off, according to a new study which suggests tired nurses may hurt patient care and safety.
“Nurses are sleeping, on average, less than recommended amounts prior to work, which may have an impact on their health and performance on the job,” says Amy Witkoski Stimpfel, assistant professor at New York University’s Rory Meyers College of Nursing and lead author of the paper in Sleep Health.
Nursing, especially in hospitals, is dominated by shift work, with nurses working outside of the traditional 9-to-5 day in order to be at the bedside around the clock. Research shows that shift work takes a toll on circadian rhythms and can impair worker performance.
In addition, 12-hour shifts are common and often result in unexpected overtime to finish patient care tasks or charting. Taken together with commute times and domestic responsibilities, nurses often have limited time to sleep before or between shifts.
Tired nurses, more mistakes?
Sleep deprivation hurts workers’ ability to handle complex and stressful tasks, and work-related sleep loss has led to serious errors in other industries, with the nuclear meltdown at Chernobyl as a particularly devastating example. In healthcare, tired nurses may risk making critical mistakes in administering medication or making clinical decisions.
In order to better understand nurses’ sleep behaviors and patient outcomes, Witkoski Stimpfel and colleagues studied sleep duration and work characteristics among registered nurses to determine whether sleep duration influences quality of care and patient safety. They used data from two surveys of 1,568 nurses collected in 2015 and 2016.
Researchers asked the nurses how much sleep they usually get, including naps, in the 24 hours prior to a scheduled shift, as well as how much sleep they usually get before a day off.
Researchers also asked about the quality of patient care in their workplace. They measured patient safety using the Agency for Healthcare Research and Quality (AHRQ) Hospital Survey on Patient Safety Culture.
Nurses reported getting, on average, just under 7 hours (414 minutes) of sleep prior to a work day and more than 8 hours (497 minutes) prior to a non-work day. Thus, the difference in sleep duration between work and non-work days was 83 minutes, or nearly an hour and a half less sleep before a work shift.
Playing catch up
In addition, getting less sleep was associated with lower measures of patient safety and quality of care, a finding that may indicate several underlying issues.
At the individual level, nurses sleeping less may be more fatigued at work, which may result in performance impairments. At the organizational level, if nurses are working in an environment that has frequent staffing shortages or high turnover resulting in unexpected overtime and long hours, tired, overworked nurses may, in part, compromise patient safety.
Can nurses “catch up” on sleep between shifts? Witkoski Stimpfel says that’s unlikely.
“Research on chronic partial sleep deprivation in healthy adults shows that after several days of not getting enough sleep, more than one day of ‘recovery sleep’—or more than 10 hours in bed—may be needed to return to baseline functioning.
“But considering a nurse’s schedule, which often involves consecutive 12-hour shifts and may only offer one or two days off between shifts, the risk of complete recovery, or ‘catching up,’ is low,” Witkoski Stimpfel says.
Researchers need to do more work on nurses’ sleep, but in the interim, healthcare leaders can use evidence-based scheduling strategies, limit the use of overtime, and provide professional development on the importance of sleep for nurses.
“It is in everyone’s interest to have nurses well-rested so they can perform their critical function within the healthcare system and keep patients safe,” says coauthor Christine Kovner, professor of geriatric nursing.
The Robert Wood Johnson Foundation supported the work.
About the Authors
Lead Author: Amy Witkoski Stimpfel, assistant professor at New York University’s Rory Meyers College of Nursing. Coauthor: Christine Kovner, professor of geriatric nursing.
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