Employing a field-based monitoring paradigm, the current study examined day-to-day fluctuations in actigraphy-based sleep recordings, cognitive performance (10-min psychomotor vigilance test; PVT), and self-reported recovery status among 14 submariners throughout a 67-day military mission. Mission averages reflected suboptimal sleep that was of short overall duration (5:46 ± 1:29 h per 24-h day) and relatively low efficiency (82.5 ± 9.9%); suboptimal levels of cognitive performance (PVT mRT = 283 ± 35 ms; PVT response errors = 5.3 ± 4.8); and moderate levels of self-reported recovery. Whilst self-reported recovery status remained stable across mission days, small but consistent day-to-day increases in sleep onset latency and PVT mRT accumulated to reflect meaningful deterioration in sleep and cognitive performance across the entire 67-day mission (i.e., 47% and 16% of the overall mission average, respectively). Future work is required to corroborate the current findings, firmly establish underlying causes, and make evidence-based suggestions for interventions to improve and uphold submariners’ health and performance.

通过一项基于现场的监测范例，本研究调查了67名14名潜艇人员在基于动作描记的睡眠记录，认知表现（10分钟心理运动警惕性测试； PVT）以及自我报告的恢复状态方面的日常波动。天军事任务。任务平均值反映出次优睡眠时间短，总持续时间短（每24小时5:46±1:29 h），效率相对较低（82.5±9.9％）；认知表现欠佳（PVT mRT = 283±35 ms； PVT响应误差= 5.3±4.8）；自我报告的恢复水平适中。尽管自我报告的恢复状态在任务期间保持稳定，睡眠开始潜伏期和PVT mRT的每日小幅但持续增加，以反映整个67天任务中睡眠和认知能力的有意义的下降（即分别占总体任务平均值的47％和16％）。需要进一步的工作来证实当前的发现，坚定地确定根本原因，并提出基于证据的干预措施建议，以改善和维护潜艇人员的健康和表现。