This was a single-center, open-label, exploratory self-controlled study evaluating NatureU Sweet Dream on sleep outcomes in adults with mild to moderate sleep disturbance. Seventeen participants were enrolled, 2 participants were lost to follow-up, and 15 participants provided valid effectiveness data. Participants completed two independent test-food sessions using wearable sleep monitoring. The comparator session used a commercially available melatonin product, and the test-product session used NatureU Sweet Dream. The main outcomes were deep sleep duration and deep sleep percentage measured by a wearable device and exported through the Huawei Health application. No adverse reactions were reported during the study.