Sleep Better Than Last Time!
HTLT Delta Sleep was built to be a premium sleep product you can rely on. It works by helping relax the body and mind first, helping you fall asleep faster, and then helping you stay asleep for a restful night. Sleep is vital to our body's recovery. It's time you started sleeping BETTER than last time!
Our ingredients are sourced from premium suppliers and third-party lab tested to ensure the best possible quality product. Learn more about our formula below:
Relax | Sleep | Wake Up Refreshed
Start with 1 to 2 capsules before sleep. If you feel you need more, increase to 3 capsules. Do NOT exceed 3 capsules per night.
Ashwagandha
Ashwagandha may help you get better sleep in two ways: by influencing sleep directly and by lowering stress, which indirectly benefits sleep. Ashwagandha has plenty of research on it's ability to lower cortisol levels, a major hormone present during stress and an inhibitor to muscle recovery.*
5-HTP
5-HTP produces serotonin, which can be converted into the hormone melatonin while going to sleep. Melatonin plays an important role in regulating sleep.*
Melatonin
Melatonin is the main hormone the body produces to induce sleep. More melatonin present in the body during sleep means falling asleep faster and staying asleep more soundly. Delta sleep utilizes both regular and bioactive melatonin, providing an extended release benefit to help you stay into a deep sleep for longer.*
GABA (Gamma-aminobutyric acid)
An amino acid and neurotransmitter that, when in high levels in the brain, can have a positive effect on anxiety, stress, depression, and sleep problems.*
Magnesium (as Magnesium Glycinate)
Magnesium plays an important role in turning protein into chemicals that help you sleep. Magnesium has also been shown to calm the nervous system down. Magnesium also helps the body maintain GABA levels. Magnesium Glycinate is magnesium binded to the amino acid, Glycine. Glycine itself is believed to have calming properties and may help reduce anxiety, depression, stress, and insomnia.*
L-Theanine
L-Theanine is an amino acid that has been shown to.reduce stress and anxiety. It works by stimulating your body's release of dopamine and serotonin, hormones that improve mood, sleep, emotion, and cortisol levels. Studies have shown L-Theanine to help people relax before bedtime, get to sleep easier, and sleep more deeply. L-Theanine and GABA have been shown to work best when taken together.*
Valerian Root 4:1
Valerian Root is a perennial plant that has been used for aiding in sleep for hundreds of years. Valerian Root has been shown in numerous studies to help fall asleep faster, improve sleep quality, provide relief from restlessness and anxiety, and leave you feeling refreshed instead of groggy in the morning.*
Ashwagandha
- Langade D, Kanchi S, Salve J, Debnath K, Ambegaokar D. Efficacy and Safety of Ashwagandha Root Extract in Insomnia and Anxiety: A Double-Blind, Randomized, Placebo-Controlled Study. Cureus. 2019;11(9):e5797.
- Langade D, Thakare V, Kanchi S, Kelgane S. Clinical evaluation of the pharmacological impact of ashwagandha root extract on sleep in healthy volunteers and insomnia patients: A double-blind, randomized, parallel-group, placebo-controlled study. Journal of Ethnopharmacology. 2021;264:113276.
- Cheah KL, Norhayati MN, Husniati Yaacob L, Abdul Rahman R. Effect of Ashwagandha (Withania somnifera) extract on sleep: A systematic review and meta-analysis. PLOS ONE. 2021;16(9):e0257843.
- Lopresti AL, Smith SJ, Malvi H, Kodgule R. An investigation into the stress-relieving and pharmacological actions of an ashwagandha extract: A randomized, double-blind, placebo-controlled study. Medicine. 2019;98(37):e17186.
- National Institutes of Health, Office of Dietary Supplements. Ashwagandha: Fact Sheet for Health Professionals. Updated 2025.
5-HTP
- Sutanto CN, et al. The impact of 5-hydroxytryptophan supplementation on sleep quality in older adults: A randomized controlled trial. Clinical Nutrition ESPEN. 2024.
- Birdsall TC. 5-Hydroxytryptophan: A Clinically-Effective Serotonin Precursor. Alternative Medicine Review. 1998;3(4):271–280.
- Richard DM, Dawes MA, Mathias CW, Acheson A, Hill-Kapturczak N, Dougherty DM. L-Tryptophan: Basic Metabolic Functions, Behavioral Research and Therapeutic Indications. International Journal of Tryptophan Research. 2009;2:45–60.
Melatonin
- Ferracioli-Oda E, Qawasmi A, Bloch MH. Meta-Analysis: Melatonin for the Treatment of Primary Sleep Disorders. PLOS ONE. 2013;8(5):e63773.
- Hamel C, et al. Melatonin for the Treatment of Insomnia: A 2022 Update. Canadian Journal of Health Technologies. 2022;2(10).
- Lemoine P, Nir T, Laudon M, Zisapel N. Prolonged-release melatonin improves sleep quality and morning alertness in insomnia patients aged 55 years and older and has no withdrawal effects. Journal of Sleep Research. 2007;16(4):372–380.
- Lemoine P, et al. Prolonged-release melatonin for insomnia – an open-label long-term study of efficacy, safety, and withdrawal. Therapeutics and Clinical Risk Management. 2011;7:301–311.
- Del Casale A, et al. The use of prolonged-release melatonin in circadian medicine: A systematic review. Current Neuropharmacology. 2024.
GABA
- Hepsomali P, Groeger JA, Nishihira J, Scholey A. Effects of Oral Gamma-Aminobutyric Acid (GABA) Administration on Stress and Sleep in Humans: A Systematic Review. Frontiers in Neuroscience. 2020;14:923.
- Cleveland Clinic. Gamma-Aminobutyric Acid (GABA): What It Is, Function & Benefits.
- Yoto A, Murao S, Motoki M, et al. Oral intake of γ-aminobutyric acid affects mood and activities of central nervous system during stressed condition induced by mental tasks. Amino Acids. 2012;43(3):1331–1337.
Magnesium / Magnesium Glycinate / Glycine
- Abbasi B, Kimiagar M, Sadeghniiat K, et al. The effect of magnesium supplementation on primary insomnia in elderly: A double-blind placebo-controlled clinical trial. Journal of Research in Medical Sciences. 2012;17(12):1161–1169.
- Schuster J, et al. Magnesium Bisglycinate Supplementation in Healthy Adults With Poor Sleep Quality: A Randomized, Double-Blind, Placebo-Controlled Trial. Nutrients. 2025.
- Kawai N, Sakai N, Okuro M, et al. The Sleep-Promoting and Hypothermic Effects of Glycine are Mediated by NMDA Receptors in the Suprachiasmatic Nucleus. Neuropsychopharmacology. 2015;40(6):1405–1416.
- Yamadera W, Inagawa K, Chiba S, Bannai M, Takahashi M, Nakayama K. Glycine ingestion improves subjective sleep quality in human volunteers, correlating with polysomnographic changes. Sleep and Biological Rhythms. 2007;5(2):126–131.
- Bannai M, Kawai N. New therapeutic strategy for amino acid medicine: Glycine improves the quality of sleep. Journal of Pharmacological Sciences. 2012;118(2):145–148.
L-Theanine
- Hidese S, Ogawa S, Ota M, et al. Effects of L-Theanine Administration on Stress-Related Symptoms and Cognitive Functions in Healthy Adults: A Randomized Controlled Trial. Nutrients. 2019;11(10):2362.
- Dasdelen MF, et al. A Novel Theanine Complex, Mg-L-Theanine, Improves Sleep Quality via Regulating Brain Electrochemical Activity. Nutrients. 2022;14(7):1407.
- Kimura K, Ozeki M, Juneja LR, Ohira H. L-Theanine reduces psychological and physiological stress responses. Biological Psychology. 2007;74(1):39–45.
- Williams JL, Everett JM, D’Cunha NM, et al. The effects of green tea amino acid L-theanine consumption on the ability to manage stress and anxiety levels: A systematic review. Plant Foods for Human Nutrition. 2020;75(1):12–23.
L-Theanine + GABA Combination
- Kim S, Jo K, Hong KB, Han SH, Suh HJ. GABA and L-theanine mixture decreases sleep latency and improves NREM sleep. Pharmaceutical Biology. 2019;57(1):65–73.
- Hepsomali P, Groeger JA, Nishihira J, Scholey A. Effects of Oral Gamma-Aminobutyric Acid (GABA) Administration on Stress and Sleep in Humans: A Systematic Review. Frontiers in Neuroscience. 2020;14:923.
Valerian Root
- Bent S, Padula A, Moore D, Patterson M, Mehling W. Valerian for Sleep: A Systematic Review and Meta-Analysis. The American Journal of Medicine. 2006;119(12):1005–1012.
- Shinjyo N, Waddell G, Green J. Valerian Root in Treating Sleep Problems and Associated Disorders—A Systematic Review and Meta-Analysis. Journal of Evidence-Based Integrative Medicine. 2020;25:2515690X20967323.
- Taibi DM, Landis CA, Petry H, Vitiello MV. A systematic review of valerian as a sleep aid: Safe but not effective. Sleep Medicine Reviews. 2007;11(3):209–230.
- Fernández-San-Martín MI, Masa-Font R, Palacios-Soler L, Sancho-Gómez P, Calbó-Caldentey C, Flores-Mateo G. Effectiveness of Valerian on insomnia: A meta-analysis of randomized placebo-controlled trials. Sleep Medicine. 2010;11(6):505–511.
Key Ingredients
Melatonin and MicroActive® Melatonin
Melatonin and MicroActive® Melatonin are included in Delta Sleep because melatonin helps signal to the body that it’s time to fall asleep, supporting faster sleep onset and a more natural nighttime rhythm. By combining regular melatonin with MicroActive® Melatonin, the formula is designed to provide both immediate and extended-release support, helping you fall asleep faster and stay asleep deeper throughout the night.
GABA
GABA is included in Delta Sleep because it is a calming neurotransmitter that helps quiet nervous system activity, making it easier for the body and mind to shift out of “go mode” and into sleep mode. By supporting relaxation, stress reduction, and a calmer mental state before bed, GABA helps promote easier sleep onset and deeper, more restful sleep.
Magnesium + Glycine
Magnesium and Glycine are included in Delta Sleep because they help calm the nervous system, support healthy GABA activity, and promote a more relaxed state before bed. Magnesium Glycinate combines magnesium with glycine for a sleep-friendly form that may help reduce tension, support deeper rest, and make it easier to wake up feeling refreshed instead of groggy.
Valerian Root
Valerian Root is included in Delta Sleep because it has a long history of use for supporting relaxation, calming restlessness, and helping the body ease into sleep more naturally. By promoting a calmer nighttime state and supporting sleep quality, Valerian Root helps make the formula more effective for falling asleep faster, staying asleep longer, and waking up feeling rested instead of knocked out.
Ashwagandha
Ashwagandha is included in Delta Sleep because it helps support a calmer stress response, which can make it easier to unwind at night and fall asleep more naturally. By helping manage cortisol, stress, and nighttime restlessness, Ashwagandha helps promote deeper sleep, better recovery, and a more refreshed wake-up.
