Rest-ZZZ

Rest-ZZZ

LifeSeasons4.3 (1,144 ratings)
Format:Capsule Quantity: 60 Capsule(s) · 30 servings
Goals
$28.99 $0.96 per serving

Product analysis

49 out of 100

Rest-ZZZ uses melatonin to support sleep timing and falling asleep, with possible calming support from other ingredients. The herbal evidence is mixed and depends on preparations that are mostly not clearly described.

AI assessment of the formula, label and price. How scoring works

Nutrient Quality23

Most ingredient preparations are not disclosed, limiting a confident quality comparison. The named passionflower description also does not establish its relative quality.

Ingredient Transparency68

The ingredient amounts are disclosed, making the serving easier to check. Only one preparation is described, leaving most ingredients harder to compare with alternatives.

Value For Money32

Several price comparisons are unfavourable, including valerian, hawthorn and melatonin. Other ingredients lack usable comparisons, so the combination has no clear value advantage.

Customer Satisfaction73

Customer ratings are generally positive across a large number of reviews. The feedback describes satisfaction without proving sleep or stress benefits.

Product Focus73

Melatonin provides the clearest link to sleep timing and falling asleep. Additional calming effects are less certain, and the combination does not establish lasting daytime stress relief.

Format
Capsule
Container
60 Capsule(s)
Per serving
$0.96
Customer rating
4.3 · 1,144 ratings
Report analysis

Goals

Sleep Support
Impact
Highest effect
B Ingredient FitB+ PathwaysA+ EvidenceA+ Formulation Logic
Melatonin · 1 mg
Study evidence
GABA Supportive 4 studies
Melatonin Supportive 181 studies
Valerian Supportive 31 studies
Stress Relief
Impact
High effect
C+ Ingredient FitB+ PathwaysA- EvidenceA+ Formulation Logic
GABA · 100 mg
Study evidence
GABA Supportive 6 studies
Melatonin Supportive 21 studies
Valerian Supportive 18 studies
Everyday Health
Impact
Moderate effect
C Ingredient FitF PathwaysC- EvidenceA+ Formulation Logic
Study evidence
Melatonin Supportive 69 studies

Ingredients

IngredientAmount per servingScore
Valerian root extract
300 mg
Chamomile flower extract
200 mg
Passion Flower extract (Flavonoids)
175 mg
GABA
100 mg 69
Hawthorne
100 mg
Lemon Balm
50 mg
Melatonin
1 mg 46
Gluten Free Adults 18–50 Dairy Free Vegetarian
Report overview
GABA · 100 mg OverallScore69
B- Active Ingredient Quality & BioavailabilityB+ Dose, Safety & Label TransparencyD- Value
Melatonin · 1 mg OverallScore46
F Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyF Value
Report alternatives

Sources

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

  1. Melatonin for preventing and treating jet lag.
    Herxheimer A; Petrie KJ · The Cochrane database of systematic reviews · 2001
    Systematic review10 studies pooledEveryday Health forMelatonin
  2. Pediatric Prolonged-Release Melatonin for Sleep in Children with Autism Spectrum Disorder: Impact on Child Behavior and Caregiver's Quality of Life.
    Schroder CM; Malow BA; Maras A; Melmed RD; Findling RL; Breddy J; Nir T; Shahmoon S; Zisapel N; Gringras P · Journal of autism and developmental disorders · 2019
    Randomized trial125 participantsEveryday Health forMelatonin
  3. Effect of melatonin supplementation on sleep quality: a systematic review and meta-analysis of randomized controlled trials.
    Fatemeh G; Sajjad M; Niloufar R; Neda S; Leila S; Khadijeh M · Journal of neurology · 2022
    Meta-analysis23 studies pooledEveryday Health forMelatonin
  4. Efficacy of melatonin for chronic insomnia: Systematic reviews and meta-analyses.
    Choi K; Lee YJ; Park S; Je NK; Suh HS · Sleep medicine reviews · 2022
    Meta-analysis24 studies pooledEveryday Health forMelatonin
  5. Effectiveness of melatonin for the treatment of nocturia: a randomized controlled trial.
    Leerasiri P; Pariyaeksut P; Hengrasmee P; Asumpinwong C · International urogynecology journal · 2023
    Randomized trial60 participantsEveryday Health forMelatonin
  6. Safety and Efficacy of Gamma-Aminobutyric Acid from Fermented Rice Germ in Patients with Insomnia Symptoms: A Randomized, Double-Blind Trial.
    Byun JI; Shin YY; Chung SE; Shin WC · Journal of clinical neurology (Seoul, Korea) · 2020
    Randomized trial40 participantsSleep Support forGABA
  7. Analysis of the Effects of Known Sleep-Support Supplements in Relation to Life Habits, Sleep Conditions, and Sleep Problems.
    Imafuku F; Yamamoto K; Tanaka E; Aoki R; Nishino S · Nutrients · 2023
    Randomized trial160 participantsSleep Support forGABA
  8. Reduced γ-aminobutyric acid in occipital and anterior cingulate cortices in primary insomnia: a link to major depressive disorder?
    Plante DT; Jensen JE; Schoerning L; Winkelman JW · Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2012
    Case-control study40 participantsSleep Support forGABA
  9. GABA Supplementation, Increased Heart-Rate Variability, Emotional Response, Sleep Efficiency and Reduced Depression in Sedentary Overweight Women Undergoing Physical Exercise: Placebo-Controlled, Randomized Clinical Trial.
    Guimarães AP; Seidel H; Pires LVM; Trindade CO; Baleeiro RDS; Souza PM; Silva FGDE; Coelho DB; Becker LK; Oliveira EC · Journal of dietary supplements · 2024
    Randomized trial30 participantsSleep Support Stress Relief forGABA
  10. 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
  11. 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
  12. 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
  13. 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
  14. 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
  15. Standardized Extract of Valeriana officinalis Improves Overall Sleep Quality in Human Subjects with Sleep Complaints: A Randomized, Double-Blind, Placebo-Controlled, Clinical Study.
    Chandra Shekhar H; Joshua L; Thomas JV · Advances in therapy · 2024
    Randomized trial80 participantsSleep Support Stress Relief forValerian
  16. Comparison the effect of valerian and gabapentin on RLS and sleep quality in hemodialysis patients: A randomized clinical trial.
    Hajizadeh I; Jamshidi M; Kazemi M; Kargar H; Sadeghi T · Therapeutic apheresis and dialysis : official peer-reviewed journal of the International Society for Apheresis, the Japanese Society for Apheresis, the Japanese Society for Dialysis Therapy · 2023
    Randomized trial40 participantsSleep Support forValerian
  17. Efficacy and tolerability of valerian extract LI 156 compared with oxazepam in the treatment of non-organic insomnia--a randomized, double-blind, comparative clinical study.
    Ziegler G; Ploch M; Miettinen-Baumann A; Collet W · European journal of medical research · 2003
    Randomized trial202 participantsSleep Support forValerian
  18. Effects of a Valerian-Hops Extract Combination (Ze 91019) on Sleep Duration and Daytime Cognitive and Psychological Parameters in Occasional Insomnia: A Randomized Controlled Feasibility Trial.
    Schicktanz N; Gerhards C; Schlitt T; Aerni A; Müggler E; de Quervain D; Papassotiropoulos A; Boonen G; Drewe J; Butterweck V · Brain and behavior · 2025
    Randomized trial40 participantsSleep Support forValerian
  19. Valerian for sleep: a systematic review and meta-analysis.
    Bent S; Padula A; Moore D; Patterson M; Mehling W · The American journal of medicine · 2006
    Meta-analysis1,093 participants16 studies pooledSleep Support forValerian
  20. Oral intake of γ-aminobutyric acid affects mood and activities of central nervous system during stressed condition induced by mental tasks.
    Yoto A; Murao S; Motoki M; Yokoyama Y; Horie N; Takeshima K; Masuda K; Kim M; Yokogoshi H · Amino acids · 2012
    Randomized trial63 participantsStress Relief forGABA