Objectives: Sleep plays a critical role in optimizing physical and mental health. The aim of this clinical study was to evaluate the efficacy and safety of Nyumi beauty sleep gummies for improvement in sleep quality in healthy adult subjects with sleep deprivation. Materials and Methods: A single-arm, clinical study was conducted. Sleep quality was assessed by the Sleep Quality Scale (SQS), Insomnia Severity Index, Perceived Stress Scale (PSS), and Daytime fatigue using Fatigue Severity Scale (FSS), along with improvement in sleep and skin quality using a subjective assessment questionnaire. In addition, skin radiance using the Modified Griffiths scale by Dermatologist and Skin Glow by Skin Glossymeter GL 200 instrument was assessed. Changes in serum cortisol levels were also recorded. Results: After consuming Nyumi beauty sleep gummies for 15 days and 25 days, a statistically significant reduction was observed in the SQS score by 35.2% and 60.8%, Insomnia Severity Index score by 52.7% and 100.0%, PSS score by 44.6% and 93.4%, and in FSS score by 33.9% and 81.0% (all P < 0.0001), respectively, implying an improvement in sleep quality. Significant improvement by 25.2% on day 15 and 53.7% on Day 25 for dermatological assessment of skin radiance by Modified Griffiths Scale and 1.16-folds on day 15 and 2.11-folds on day 25 (all P < 0.0001) for skin glow by Skin Glossymeter GL200 instrument was also recorded. Improvement in sleep quality and skin glow was recorded by subjective assessment from baseline to the end of the study. Furthermore, no adverse event was recorded during the study conduction. Conclusion: Nyumi beauty sleep gummies significantly improved the sleep quality (in terms of total sleep time, sleep latency, sleep efficiency, time to sleep onset, number of awakenings, wake time after sleep onset, and sleep efficiency), daytime mood, ability to function at work, concentration, memory; reduced perceived stress, fatigue severity, and insomnia severity score. It also helped in improving skin glow and skin radiance.
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