Treat fatigue as a work-design problem
Fatigue risk management examines how schedules, workload, recovery time, and the work environment affect a nurse's ability to work safely. Individual sleep habits matter, but they are only part of the picture.
NIOSH explains that shift work and long hours can disturb sleep and circadian rhythms and reduce recovery time. The consequences can affect workers, patients, and the commute home. These risks depend on the worker and the job; a shift length alone cannot establish whether a particular person is fit for duty.
Look at the complete schedule
A review should consider planned hours and what actually happens. Questions worth asking include whether shifts routinely extend, whether staff can take the intended breaks, and whether changes leave a realistic opportunity to recover before returning.
For example, a schedule may show adequate time between shifts while repeated late departures and early required meetings shorten that interval. Recording actual work times can reveal a problem hidden in the original roster.
This is an operational assessment, not a statement about a universal legal maximum shift length. Overtime pay rules, state restrictions, contracts, and employer policies require separate analysis.
Make reporting usable
NIOSH recommends that nurses report when they feel too fatigued to work and that managers establish a way to raise fatigue concerns. A local process needs to explain whom to contact and what response follows.
A useful discussion describes the immediate concern and the work that needs safe coverage. It should lead to an assessment and plan, rather than leave an individual to improvise a patient handoff or simply continue without support.
Ask how the process works overnight, during a staffing shortage, or when several staff members raise concerns at once. Those are precisely the circumstances in which an informal arrangement may fail.
Support recovery in practice
NIOSH's guidance includes opportunities for breaks, recovery between shifts, sleep education, and supportive workplace arrangements. Its advice to workers includes protecting sleep and using a comfortable, dark, cool, quiet sleep environment.
The employer and employee have different tools. A nurse can discuss sleep difficulties and personal constraints; management can change scheduling, coverage, workload, and access to breaks. A wellness handout does not establish that the work system permits recovery.
Any workplace napping arrangement needs an approved location, coverage, and return-to-duty process. A general discussion of napping is not permission to leave an assignment unattended.
Review the pattern, not just the incident
A fatigue review can connect staff reports, actual hours, missed breaks, and operational events. It should examine possible contributing conditions without assuming that fatigue caused every error or that a single measure proves improvement.
Persistent sleepiness or difficulty sleeping also deserves individual clinical evaluation. For issues specific to working overnight, see night work and circadian disruption.
Fatigue management complements work on burnout and staffing; it does not replace either.
Sources
- NIOSH: How Shift Work and Long Work Hours Increase Health and Safety Risks (accessed 2026-09-17).
- NIOSH: Managing Fatigue During Times of Crisis (accessed 2026-09-17) — 2020 guidance.