Rice Bran Extract (Gamma Oryzanol & Beta Sitosterol):
https://ajcn.nutrition.org/article/S0002-9165(25)00276-X/fulltext
Huh SY, Efficacy of rice bran extract for alleviating depressive symptoms among adults with mild-to-moderate symptomology: an 8-week randomized trial. American Journal of Clinical Nutrition. 2025; (advance online publication). doi:10.1016/j.ajcnut.2025.00276-X.
https://www.researchgate.net/publication/335401237_Rice_bran_extract_supplement_improves_sleep_efficiency_and_sleep_onset_in_adults_with_sleep_disturbance_A_randomized_double-blind_placebo-controlled_polysomnographic_study
Um, M Y., Yang, H., Han, J K., Kim, J Y., Kang, S W., Yoon, M., Kwon, S. & Cho, S. (2019) ‘Rice bran extract supplement improves sleep efficiency and sleep onset in adults with sleep disturbance: A randomized, double-blind, placebo-controlled, polysomnographic study’, Scientific Reports, 9(1), 12339. doi:10.1038/s41598-019-48743-8.
Magnesium Glycinate
https://pmc.ncbi.nlm.nih.gov/articles/PMC8996025/
Zhang, Y., Chen, C., Lu, L., Knutson, K.L., Carnethon, M.R., Fly, A.D., Luo, J., Haas, D.M., Shikany, J.M. & Kahe, K. (2021) ‘Association of magnesium intake with sleep duration and sleep quality: findings from the CARDIA study’, Sleep, 45(4), zsab276. doi:10.1093/sleep/zsab276.
https://pmc.ncbi.nlm.nih.gov/articles/PMC11136869/
Rawji, A., Xiong, G., Kearney, H., Manning, I., Fielding, J.L., and Shah, S. (2024) ‘Examining the effects of supplemental magnesium on self-reported anxiety and sleep quality: A systematic review’, Nutrients, 16(5), 1223. doi:10.3390/nu16051223. (pmc.ncbi.nlm.nih.gov)
5-Hydroxytryptophan (5-HTP):
https://pmc.ncbi.nlm.nih.gov/articles/PMC7796270/
Maffei, M.E. (2020) ‘5-Hydroxytryptophan (5-HTP): Natural occurrence, biosynthesis, metabolism, physiological and toxicological effects’, International Journal of Molecular Sciences, 22(1), 10181. doi:10.3390/ijms22010181.
Reviews
Best sleep supplement out there!!
Only been taking restNAO for about a week. I'm sleeping slightly better but still waking up once or twice a night. Will give it more time before a full verdict.
Mild improvement in how quickly I fall asleep but I'm still waking up earlier than I'd like. I know supplements take time so I'll keep going and see.
I was waking up 3-4 times a night and feeling exhausted every morning. restNAO has changed that completely — I sleep straight through and wake up feeling genuinely rested.
I was waking up 3-4 times a night and feeling exhausted every morning. restNAO has changed that completely — I sleep straight through and wake up feeling genuinely rested.