ABSTRACT

Consuming coffee immediately prior to a nap, known as a caffeine-nap, has been shown to improve alertness during the day, but it is unknown whether a caffeine-nap is effective at reducing sleep inertia during the night. A simulated shiftwork cross-over laboratory study was conducted whereby participants (N = 6, 4 F, 21–36y) consumed 200 mg of caffeine, or decaffeinated coffee (placebo), immediately prior to a 30 min nap opportunity at 03:30 h. Compared to placebo, the caffeine-nap resulted in improved vigilant attention and subjective fatigue in the 45 min post-nap opportunity. The caffeine-nap may be useful in reducing sleep inertia in shift workers who nap on nightshift.

摘要

事实证明，午睡前立即喝咖啡可改善白天的警觉性，但尚不清楚咖啡因午睡是否可有效减少夜间的睡眠惯性。进行了模拟轮班交叉实验室研究，参与者（N = 6、4 F，21-36y）在03:30 h午睡机会前30分钟立即食用了200 mg咖啡因或脱咖啡因的咖啡（安慰剂）。 。与安慰剂相比，咖啡因小睡可在小睡后45分钟内提高警惕性和主观疲劳感。在夜班中打reducing的值班工人中，咖啡因小睡可能有助于减少睡眠惯性。