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Sleep Blackberry Zen

OLLY
4.4
★ ★ ★ ★ ★
(7157 ratings)
Theanine 100 mg
Melatonin 3 mg
Product Image
Score72
A balanced melatonin-theanine gummy is transparent and convenient, while low-dose herbs serve mainly as minor extras.
How scoring works
Quantity:70 Gummy(ies) • (35 servings)
Goals:
Sleep Support
Stress Relief
Productivity Boost
Brain Health

Score 72

A balanced melatonin-theanine gummy is transparent and convenient, while low-dose herbs serve mainly as minor extras.
How scoring works

Also available as

3 options
5.00mg Melatonin, 100.00mg L-Theanine • 50 Gummy(ies) servings Theanine 100 mg, Melatonin 5 mg • 50 Gummy(ies) • 25 servings $12.79 ($0.51 per serving) 5.00mg Melatonin, 75.00mg L-Theanine • 70 Gummy(ies) servings Protein 1 Gram(s), Theanine 75 mg +1 more • 70 Gummy(ies) • 35 servings $18.99 ($0.54 per serving) 5.00mg Melatonin, 100.00mg L-Theanine • 60 Gummy(ies) servings Theanine 100 mg, Melatonin 5 mg • 60 Gummy(ies) • 30 servings $16.99 ($0.56 per serving)
$16.99($0.48 per serving)
Walmart
$ 16.99
iHerb
$ 17.99
Vitacost
$ 19.29
Report prices

Analysis

The gummy combines moderate melatonin with a useful theanine amount for sleep onset and relaxation. Chamomile, passionflower, and lemon balm are sensible bedtime additions.

The botanical extracts are individually listed but modest, so the core effect likely comes from melatonin and theanine. The gummy adds carbohydrate but offers a longer supply than smaller packages.

The product suits adults who value taste, chewability, and a balanced melatonin serving. Capsule or tablet users may find more active-dense options.

Who is it for
  • Adults who prefer gummies
  • People seeking moderate melatonin with theanine
Best for
  • Sleep onset
  • Bedtime relaxation

Pros

  • Balanced core sleep actives
  • Named botanical extracts
  • Longer gummy supply

Cons

  • Botanical amounts are small
  • Adds carbohydrate
  • Less active-dense than capsules

Warnings

  • Melatonin may cause next-day drowsiness
  • Chamomile may trigger reactions in people sensitive to ragweed-family plants

Nutrient quality

76 High impact

Theanine and melatonin provide useful core support for relaxation and sleep timing. Small botanical amounts and gummy carbohydrate limit formula efficiency.

Ingredient transparency

81 Highest impact

Every listed active amount is disclosed, and no proprietary blend obscures the formula. Complete daily directions and inactive-ingredient details are not available.

Customer satisfaction

70 High impact

The aggregate satisfaction measure is favorable, with response volume determining how much confidence it deserves. Comment-level evidence is absent, so recurring complaints and purpose fit cannot be verified.

Value for money

55 Moderate impact

Useful core actives partly support the moderate serving cost. Token botanicals and gummy carbohydrate keep value only fair.

Report analysis

Goals

Sleep Support
Sleep Support
Impact
Highest effect
A Goal FitA Strength of SupportA- CoverageB Formula Quality
Melatonin · 3 mgTheanine · 100 mg

The formula strongly aligns with sleep onset through melatonin and L-theanine at useful disclosed amounts. Small chamomile, passionflower, and lemon balm additions provide less certain incremental support.

The two core actives cover circadian timing and mental relaxation without a conflicting stimulant. Immediate-release gummies do not specifically support sleep maintenance, and melatonin may cause next-morning grogginess in sensitive users.

Study evidence
Melatonin Supportive 181 studies
Theanine Supportive 8 studies
Stress Relief
Stress Relief
Impact
High effect
B+ Goal FitB+ Strength of SupportB- CoverageB+ Formula Quality
Theanine · 100 mg

The gummy pairs useful theanine with circadian support for stress-related sleep difficulty. It provides 100 mg of L-theanine, 3 mg of melatonin, and three small herb extracts for the stated purpose.

The herb amounts are modest, and the formula is less relevant for daytime stress management. The 3 mg melatonin amount can cause drowsiness and should be used only when sleep is intended.

Study evidence
Melatonin Supportive 21 studies
Theanine Supportive 16 studies
Productivity Boost
Productivity Boost
Impact
High effect
C- Goal FitB Strength of SupportC CoverageB+ Formula Quality
Theanine · 100 mg

L-theanine and 3 mg melatonin may improve sleep, which can indirectly support next-day productivity when poor sleep is the main barrier. The formula is sedating rather than designed for daytime focus or mental energy.

Chamomile, passionflower, and lemon balm reinforce the nighttime intent but are present at small amounts. The 3 mg melatonin serving may cause next-day drowsiness, vivid dreams, or impaired morning alertness in sensitive users.

Study evidence
Theanine Supportive 5 studies
Brain Health
Brain Health
Impact
High effect
D+ Goal FitB Strength of SupportC- CoverageB Formula Quality

Theanine may support calm attention, while better sleep can indirectly help cognitive performance. The formula is still designed for sleep rather than memory, neuroprotection, or daytime focus.

Theanine has a useful disclosed amount, but the small botanical extracts contribute little cognitive depth. Melatonin may cause drowsiness, so the formula is more suitable for bedtime than tasks requiring alertness.

Study evidence
Melatonin Supportive 29 studies
Theanine Supportive 17 studies
Mood Support
Mood Support
Impact
Moderate effect
C- Goal FitB- Strength of SupportD+ CoverageB- Formula Quality

L-theanine and calming herbs may reduce bedtime tension, while melatonin supports sleep onset. Any mood benefit is likely to come indirectly through improved rest.

The 100 mg theanine amount is useful, but the botanical doses are modest. The 3 mg melatonin amount may still cause next-day drowsiness or vivid dreams in sensitive users.

Study evidence
Theanine Supportive 12 studies
Cognitive Support
Cognitive Support
Impact
Moderate effect
D- Goal FitB+ Strength of SupportD- CoverageF Formula Quality
Theanine · 100 mg

L-theanine is present at a useful amount for calm attention, but the gummy is designed to induce sleep. Melatonin and three calming herbs can reduce alertness and make the formula unsuitable for most cognitively demanding situations.

All active amounts are transparent, though the L-theanine source is generic. Melatonin may cause drowsiness or next-morning grogginess in sensitive users, which can offset any calm-focus benefit.

Study evidence
Theanine Supportive 25 studies

Ingredients

IngredientAmount per serving
Calories
15 Calorie(s)
Total Carbohydrates
3 Gram(s)
Protein
1 Gram(s)
L-Theanine
100 mg
Melatonin
3 mg
Chamomile extract
17 mg
Passionflower extract
17 mg
Lemon Balm extract
16 mg
Gluten Free Adults 18–50
Report overview
Theanine · 100 mg OverallScore82
B+ Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyD+ Value

Generic L-theanine reaches the effective range and is clearly disclosed within a sleep blend. The source lacks a branded purity standard, while added melatonin and calming botanicals make it less focused than a standalone supplement. Value is moderate, and melatonin may cause drowsiness or next-day grogginess in sensitive users.

View ingredientView products
Melatonin · 3 mg OverallScore54
F Active Ingredient Quality & BioavailabilityB+ Dose, Safety & Label TransparencyD Value
The 3 mg melatonin amount fits the preferred range and is paired with several calming ingredients. Two-gummy dosing is less direct, and the product lacks sustained release and independent purity verification. Its high serving cost is only partly supported by the broader blend.
View ingredientView products
Loading alternative details
92 Performance

Tranquil Sleep

Natural Factors Stress-Relax
<p>Branded 200 mg Suntheanine, 3 mg melatonin, and 30 mg fully disclosed 5-HTP provide broad relaxation and sleep-onset support without an opaque blend. The 5-HTP can interact with serotonin-raising medicines, so that added depth is not appropriate for everyone.</p>
89 Performance

L-Theanine 200 mg Double Strength

Swanson
<p>A substantial 200 mg branded Suntheanine dose provides stronger, clearly identified relaxation support without melatonin. It may suit users who want to avoid next-day effects from melatonin, but it offers less direct support for sleep timing than the original.</p>
90 Performance

Melatonin 1.0 mg Orange Flavor

Source Naturals Sleep Science
<p>The focused 1 mg melatonin lozenge uses a conservative amount and avoids lightly dosed or undisclosed extras. It gives up the original formula’s theanine support, making it more suitable for sleep timing than broader bedtime relaxation.</p>
86 Budget

Fast-Dissolve Melatonin 3 mg Artificial Strawberry Flavor

Spring Valley
<p>The very low serving cost retains a clearly disclosed 3 mg melatonin dose in a fast-dissolve format. It omits L-theanine and the original formula’s other calming ingredients, so the savings come with narrower support.</p>
88 Budget

Melatonin 1 mg Fast Dissolve Strawberry Natural Flavor

Natrol
<p>The low-cost fast-dissolve tablet uses a conservative 1 mg melatonin amount for sleep timing. It is simpler than the original and leaves out L-theanine, making it a better fit when minimizing both cost and ingredient count matters.</p>
87 Budget

Melatonin Lozenges 3 mg

Life Extension
<p>A low serving cost provides 3 mg melatonin in a focused lozenge with no hidden blend. The streamlined formula is easier to assess than the original, though it does not provide L-theanine for relaxation support.</p>
94 Value

Sleep Regimen 3-in-1

NOW
<p>A low serving cost combines 3 mg melatonin, 200 mg L-theanine, and 50 mg Griffonia-derived 5-HTP with all amounts disclosed. The formula provides more bedtime depth for the money, but 5-HTP can interact with serotonin-raising medicines.</p>
89 Value

L-Theanine 100 mg

California Gold Nutrition
<p>Branded AlphaWave L-theanine supplies a clear 100 mg amount at a low serving cost. It offers clean relaxation support without melatonin, though users seeking direct sleep-timing support would need a different approach.</p>
88 Value

Melatonin Lozenge 2.5 mg

Nature's Way
<p>A practical 2.5 mg melatonin lozenge provides straightforward sleep-onset support at a very low serving cost. It lacks L-theanine and other calming actives, but the focused label offers clearer value than paying for lightly dosed extras.</p>
Report alternatives

Sources

Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.

  1. Meta-analysis: melatonin for the treatment of primary sleep disorders.
    Ferracioli-Oda E; Qawasmi A; Bloch MH · PloS one · 2013
    Meta-analysis1,683 participants19 studies pooledSleep Support forMelatonin
  2. Efficacy on sleep parameters and tolerability of melatonin in individuals with sleep or mental disorders: A systematic review and meta-analysis.
    Salanitro M; Wrigley T; Ghabra H; de Haan E; Hill CM; Solmi M; Cortese S · Neuroscience and biobehavioral reviews · 2022
    Meta-analysis1,998 participants34 studies pooledSleep Support forMelatonin
  3. Unintended consequences: college students' melatonin usage, sleep disturbance, and depressive symptoms.
    Peltz JS; Rogge R · Sleep and biological rhythms · 2025
    Cohort study331 participantsSleep Support forMelatonin
  4. The effects of L-theanine consumption on sleep outcomes: A systematic review and meta-analysis.
    Bulman A; D'Cunha NM; Marx W; Turner M; McKune A; Naumovski N · Sleep medicine reviews · 2025
    Meta-analysis897 participants19 studies pooledSleep Support forTheanine
  5. Theanine maintains sleep quality in healthy young women by suppressing the increase in caffeine-induced wakefulness after sleep onset.
    Baba Y; Takihara T; Okamura N · Food & function · 2023
    Clinical trialSleep Support forTheanine
  6. Melatonin for pre- and postoperative anxiety in adults.
    Hansen MV; Halladin NL; Rosenberg J; Gögenur I; Møller AM · The Cochrane database of systematic reviews · 2015
    Meta-analysis774 participants12 studies pooledStress Relief forMelatonin
  7. No effect of melatonin to modify surgical-stress response after major vascular surgery: a randomised placebo-controlled trial.
    Kücükakin B; Wilhelmsen M; Lykkesfeldt J; Reiter RJ; Rosenberg J; Gögenur I · European journal of vascular and endovascular surgery : the official journal of the European Society for Vascular Surgery · 2010
    Randomized trial50 participantsStress Relief forMelatonin
  8. Anti-Stress, Behavioural and Magnetoencephalography Effects of an L-Theanine-Based Nutrient Drink: A Randomised, Double-Blind, Placebo-Controlled, Crossover Trial.
    White DJ; de Klerk S; Woods W; Gondalia S; Noonan C; Scholey AB · Nutrients · 2016
    Randomized trial34 participantsStress Relief forTheanine
  9. Effect of Combined Ingestion of L-Theanine and L-Arginine for Short-Term Psychological Stress in Young Adults: A Randomized Placebo-Controlled Study.
    Furushima D; Sugiyama I; Nomura Y; Unno K; Yamada H · Journal of nutritional science and vitaminology · 2023
    Randomized trial120 participantsStress Relief forTheanine
  10. Comparative Efficacy, Tolerability, and Acceptability of Donanemab, Lecanemab, Aducanumab, Melatonin, and Aerobic Exercise for a Short Time on Cognitive Function in Mild Cognitive Impairment and Mild Alzheimer's Disease: A Systematic Review and Network Meta-Analysis.
    Terao I; Kodama W · Journal of Alzheimer's disease : JAD · 2024
    Meta-analysis4,599 participants10 studies pooledBrain Health forMelatonin
  11. Melatonin for sleep and cognitive outcomes in older adults with cognitive impairment: a meta-analysis of randomised controlled trials.
    Mdluli NT; Banda KJ; Chang YC · Age and ageing · 2025
    Meta-analysis516 participants10 studies pooledBrain Health forMelatonin
  12. Add-on prolonged-release melatonin for cognitive function and sleep in mild to moderate Alzheimer's disease: a 6-month, randomized, placebo-controlled, multicenter trial.
    Wade AG; Farmer M; Harari G; Fund N; Laudon M; Nir T; Frydman-Marom A; Zisapel N · Clinical interventions in aging · 2015
    Randomized trial80 participantsBrain Health forMelatonin
  13. Early Oral Melatonin Supplementation Supports White Matter Maturation in Preterm Infants: Neuroprotective Insights of an Antioxidant Molecule.
    Garofoli F; Asteggiano C; Minniti ML; Accorsi P; Albertini R; Angelini M; Aversa S; Ballante E; Cabini RF; Caporali C; Cociglio S; Franco V; Longo S; Malerba L; Materia V; Mazzocchi L; Naboni C; Palmisani M; Pullega C; Pisoni C; Preda L; Riboli A; Risso FM; Rognone E; Savini G; Simoncelli AM; Villani P; Tzialla C; Pinelli L; Fazzi E; Chiapparini L; Borgatti R; Ghirardello S; Pichiecchio A; Orcesi S · Journal of pineal research · 2026
    Randomized trial54 participantsBrain Health forMelatonin
  14. Efficacy and Safety of Melatonin in Migraine Prophylaxis: A Systematic Review and Meta-Analysis of Randomized Controlled Trials.
    Abouelmagd ME; Aldemerdash MA; Khatatbeh AA; Osman ASA; Abbas A; Allam S; AlEdani EM; Aldemerdash A; Monteith TS · Current pain and headache reports · 2026
    Meta-analysis788 participants9 studies pooledBrain Health forMelatonin
  15. Effects of L-Theanine Administration on Stress-Related Symptoms and Cognitive Functions in Healthy Adults: A Randomized Controlled Trial.
    Hidese S; Ogawa S; Ota M; Ishida I; Yasukawa Z; Ozeki M; Kunugi H · Nutrients · 2020
    Randomized trial30 participantsBrain Health Cognitive Support Sleep Support forTheanine
  16. A Randomized, Triple-Blind, Placebo-Controlled, Crossover Study to Investigate the Efficacy of a Single Dose of AlphaWave® L-Theanine on Stress in a Healthy Adult Population.
    Evans M; McDonald AC; Xiong L; Crowley DC; Guthrie N · Neurology and therapy · 2021
    Randomized trialBrain Health Stress Relief forTheanine
  17. Effects of Tea (Camellia sinensis) or its Bioactive Compounds l-Theanine or l-Theanine plus Caffeine on Cognition, Sleep, and Mood in Healthy Participants: A Systematic Review and Meta-Analysis of Randomized Controlled Trials.
    Payne ER; Aceves-Martins M; Dubost J; Greyling A; de Roos B · Nutrition reviews · 2025
    Meta-analysis50 studies pooledBrain Health Cognitive Support forTheanine
  18. Assessing the effects of caffeine and theanine on the maintenance of vigilance during a sustained attention task.
    Foxe JJ; Morie KP; Laud PJ; Rowson MJ; de Bruin EA; Kelly SP · Neuropharmacology · 2012
    Randomized trial27 participantsBrain Health Cognitive Support forTheanine
  19. Effects of l-Theanine on Cognitive Function in Middle-Aged and Older Subjects: A Randomized Placebo-Controlled Study.
    Baba Y; Inagaki S; Nakagawa S; Kaneko T; Kobayashi M; Takihara T · Journal of medicinal food · 2021
    Randomized trialBrain Health Productivity Boost forTheanine
  20. Dose-response effect of L-theanine on psychomotor speed, sustained attention, and inhibitory control: a double-blind, placebo-controlled, crossover study.
    Dassanayake TL; Wijesundara D; Kahathuduwa CN; Weerasinghe VS · Nutritional neuroscience · 2023
    Randomized trial32 participantsCognitive Support forTheanine
  21. Acute effects of theanine, caffeine and theanine-caffeine combination on attention.
    Kahathuduwa CN; Dassanayake TL; Amarakoon AMT; Weerasinghe VS · Nutritional neuroscience · 2018
    Clinical trial20 participantsCognitive Support forTheanine
  22. l-theanine adjunct to sertraline for major depressive disorder: A randomized, double-blind, placebo-controlled clinical trial.
    Shamabadi A; Kafi F; Arab Bafrani M; Asadigandomani H; A Basti F; Akhondzadeh S · Journal of affective disorders · 2023
    Randomized trial60 participantsMood Support forTheanine
  23. L-theanine relieves positive, activation, and anxiety symptoms in patients with schizophrenia and schizoaffective disorder: an 8-week, randomized, double-blind, placebo-controlled, 2-center study.
    Ritsner MS; Miodownik C; Ratner Y; Shleifer T; Mar M; Pintov L; Lerner V · The Journal of clinical psychiatry · 2011
    Randomized trial60 participantsMood Support Stress Relief forTheanine
  24. The Effects of Green Tea Amino Acid L-Theanine Consumption on the Ability to Manage Stress and Anxiety Levels: a Systematic Review.
    Williams JL; Everett JM; D'Cunha NM; Sergi D; Georgousopoulou EN; Keegan RJ; McKune AJ; Mellor DD; Anstice N; Naumovski N · Plant foods for human nutrition (Dordrecht, Netherlands) · 2020
    Systematic review9 studies pooledMood Support forTheanine
  25. Comparison of the effects of two amino acids, Gamma-aminobutyric acid (GABA) and L-theanine, on sedation, anxiety, and cognition in preoperative surgical patients - A randomized controlled study.
    Deshpande SS; Kurdi M; Baiju A; Athira AS; Sarasamma AG; Gangadharan AK · Journal of anaesthesiology, clinical pharmacology · 2025
    Randomized trial168 participantsMood Support Stress Relief forTheanine
  26. Anti-stress effect of theanine on students during pharmacy practice: positive correlation among salivary α-amylase activity, trait anxiety and subjective stress.
    Unno K; Tanida N; Ishii N; Yamamoto H; Iguchi K; Hoshino M; Takeda A; Ozawa H; Ohkubo T; Juneja LR; Yamada H · Pharmacology, biochemistry, and behavior · 2014
    Randomized trial20 participantsMood Support forTheanine
  27. Cognitive and affective effects of L-Theanine: a systematic review and meta-analysis of 31 randomized trials.
    Gerolymos C; Saddier E; Boyer L; Fond G · Molecular psychiatry · 2026
    Meta-analysis1,168 participants31 studies pooledProductivity Boost forTheanine
  28. Safety and Efficacy of AlphaWave® L-Theanine Supplementation for 28 Days in Healthy Adults with Moderate Stress: A Randomized, Double-Blind, Placebo-Controlled Trial.
    Moulin M; Crowley DC; Xiong L; Guthrie N; Lewis ED · Neurology and therapy · 2024
    Randomized trial30 participantsProductivity Boost Stress Relief forTheanine
  29. Effects of L-theanine on cognition, mood and sleep: evidence from human trials.
    Cotter J; Kilpatrick HE · Frontiers in nutrition · 2026
    Narrative reviewProductivity Boost forTheanine
  30. Time for tea: mood, blood pressure and cognitive performance effects of caffeine and theanine administered alone and together.
    Rogers PJ; Smith JE; Heatherley SV; Pleydell-Pearce CW · Psychopharmacology · 2008
    Randomized trial48 participantsProductivity Boost forTheanine
  31. Melatonin treatment for age-related insomnia.
    Zhdanova IV; Wurtman RJ; Regan MM; Taylor JA; Shi JP; Leclair OU · The Journal of clinical endocrinology and metabolism · 2001
    Randomized trial30 participantsSleep Support forMelatonin
  32. The Effectiveness of Melatonin for Sleep Disturbances in Parkinson' Disease: Systematic Review and Meta-Analysis.
    Yousef O; Abouelmagd ME; Khaddam H; Shbani A; Yousef R; Meshref M; Hanafi I · Journal of sleep research · 2026
    Meta-analysis409 participants8 studies pooledSleep Support forMelatonin
  33. Nightly treatment of primary insomnia with prolonged release melatonin for 6 months: a randomized placebo controlled trial on age and endogenous melatonin as predictors of efficacy and safety.
    Wade AG; Ford I; Crawford G; McConnachie A; Nir T; Laudon M; Zisapel N · BMC medicine · 2010
    Randomized trial791 participantsSleep Support forMelatonin
  34. Effects of exogenous melatonin on sleep: a meta-analysis.
    Brzezinski A; Vangel MG; Wurtman RJ; Norrie G; Zhdanova I; Ben-Shushan A; Ford I · Sleep medicine reviews · 2005
    Meta-analysis284 participants8 studies pooledSleep Support forMelatonin
  35. Comparison Between Efficacy of Oral Melatonin and Oral L-theanine in Improving Sleep in Cancer Patients Suffering From Insomnia: A Randomised Double-blinded Placebo-controlled Study.
    Kurdi MS; As A; Ladhad DA; Mitragotri MV; Baiju A · Indian journal of palliative care · 2024
    Randomized trial120 participantsSleep Support forTheanine
  36. In Search of a Safe Natural Sleep Aid.
    Rao TP; Ozeki M; Juneja LR · Journal of the American College of Nutrition · 2016
    Narrative reviewSleep Support forTheanine
  37. L-theanine in the adjunctive treatment of generalized anxiety disorder: A double-blind, randomised, placebo-controlled trial.
    Sarris J; Byrne GJ; Cribb L; Oliver G; Murphy J; Macdonald P; Nazareth S; Karamacoska D; Galea S; Short A; Ee C; Birling Y; Menon R; Ng CH · Journal of psychiatric research · 2020
    Randomized trial46 participantsSleep Support forTheanine
  38. The impact of oral melatonin on pain and anxiety reduction during venipuncture in pediatric patients: a double-blind randomized clinical trial.
    Rahafard S; Akbari Jokar Z; Hosseini SA; Alaee E · Annals of medicine and surgery (2012) · 2024
    Randomized trial202 participantsStress Relief forMelatonin
  39. Comparison of Effects of Melatonin and Gabapentin on Post Operative Anxiety and Pain in Lumbar Spine Surgery: A Randomized Clinical Trial.
    Javaherforooshzadeh F; Amirpour I; Janatmakan F; Soltanzadeh M · Anesthesiology and pain medicine · 2022
    Randomized trial90 participantsStress Relief forMelatonin
  40. Effects of melatonin intake on depression and anxiety in postmenopausal women: a systematic review and meta-analysis of randomised controlled trials.
    Demirhan Kayacik A; İlcioglu K · Archives of women's mental health · 2024
    Meta-analysis441 participants5 studies pooledStress Relief forMelatonin
  41. Premedication effect of melatonin on propofol induction dose for anesthesia, anxiety, orientation and sedation after abdominal surgery: a double-blinded randomized trial.
    Norouzi A; Fateh S; Modir H; Kamali A; Akrami L · Medical gas research · 2020
    Randomized trial88 participantsStress Relief forMelatonin