Alertness management: strategic naps in operational settings.

Area of Science:

• Operational Fatigue Management
• Human Performance and Alertness

Background:

• Managing fatigue in complex operational settings is multifaceted, involving hours of service, scheduling, training, and technology.
• Alertness-management strategies, both preventive and operational, are vital for safety, performance, and productivity.

Purpose of the Study:

• To explore the effectiveness of strategic naps in promoting alertness and performance.
• To discuss potential negative effects of naps, such as sleep inertia and impacts on subsequent sleep.

Main Methods:

• Review of studies demonstrating the efficacy of naps for improving performance and alertness.
• Analysis of a study on planned rest periods and in-flight naps in long-haul flight operations.

Main Results:

• Strategic naps are effective in promoting performance and alertness in operational settings.
• In-flight naps improved performance during critical flight phases like descent and landing.
• Sleep inertia and effects on subsequent sleep are potential negative considerations for nap strategies.

Conclusions:

• Combining multiple alertness-management strategies may be most effective for 24-h operational demands.
• Empirical evaluation of these strategies in regular operations is critical for implementation.
• Considerations for implementing alertness-management strategies in operational environments are discussed.