Power to Sleep PM

Power to Sleep PM

Irwin Naturals4.3 (2,831 ratings)
Format:Softgel Quantity: 120 Softgel(s) · 60 servings
Goals
$36.94 $0.61 per serving

Product analysis

40 out of 100

Power to Sleep PM may support sleep timing and help you fall asleep, with melatonin providing the clearest benefit. Evidence for the added relaxation ingredients is mixed or limited, so a longer formula does not necessarily offer a better sleep option.

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

Nutrient Quality22

Most ingredient forms are unspecified, so their source quality remains uncertain. The botanical blend also leaves its individual ingredients unidentified.

Ingredient Transparency54

Amounts are listed throughout, helping with serving comparisons. Almost all forms and the individual ingredients inside the botanical blend are not disclosed.

Value For Money36

The serving cost is relatively high if theanine or melatonin is your main reason for buying it. Valerian and GABA provide only modest value, while the value of the remaining ingredients is less clear.

Customer Satisfaction78

Customer feedback is generally positive. Several thousand ratings provide a broad picture of satisfaction.

Product Focus26

The clearest fit is sleep timing, with possible relaxation benefits and less certain support for mood or attention. Modest supporting amounts and unidentified blend ingredients limit how much the wider formula adds.

Format
Softgel
Container
120 Softgel(s)
Per serving
$0.61
Customer rating
4.3 · 2,831 ratings
Report analysis

Goals

Sleep Support
Impact
Highest effect
C+ Ingredient FitB+ PathwaysA EvidenceA+ Formulation Logic
Magnesium · 12 mgMelatonin · 2 mgTheanine · 50 mg
Study evidence
GABA Supportive 4 studies
Magnesium Supportive 23 studies
Melatonin Supportive 181 studies
Theanine Supportive 8 studies
Valerian Supportive 31 studies
Stress Relief
Impact
High effect
C+ Ingredient FitB+ PathwaysB+ EvidenceA+ Formulation Logic
Ashwagandha · 150 mgMagnesium · 12 mgGABA · 100 mgTheanine · 50 mg
Study evidence
GABA Supportive 6 studies
Magnesium Supportive 13 studies
Melatonin Supportive 21 studies
Theanine Supportive 16 studies
Valerian Supportive 18 studies
Brain Health
Impact
Moderate effect
D+ Ingredient FitD- PathwaysC+ EvidenceA+ Formulation Logic
Magnesium · 12 mgAshwagandha · 150 mg
Study evidence
Magnesium Supportive 86 studies
Melatonin Supportive 29 studies
Theanine Supportive 17 studies
Mood Support
Impact
Moderate effect
C- Ingredient FitF PathwaysC- EvidenceA+ Formulation Logic
Magnesium · 12 mgAshwagandha · 150 mg
Study evidence
GABA Supportive 12 studies
Magnesium Supportive 60 studies
Theanine Supportive 12 studies
Valerian Supportive 17 studies

Ingredients

IngredientAmount per servingScore
Calories
20 Calorie(s)
Total Fat
1 Gram(s)
Total Carbohydrates
1 Gram(s)
Protein
1 Gram(s)
Calcium (Calcium Citrate)
11 mg
Magnesium (Magnesium Citrate)
12 mg
Flaxseed Oil
1087 mg
Valerian extract
200 mg 64
Ashwagandha Root Extract
150 mg 65
Hops extract
150 mg
Lemon Balm extract
150 mg
Passionflower flower extract
150 mg
GABA
100 mg 65
L-Theanine
50 mg 70
Melatonin
2 mg 46
BioPerine Complex
6 mg
Adults 18–50 Women
Report overview
GABA · 100 mg OverallScore65
B- Active Ingredient Quality & BioavailabilityB- Dose, Safety & Label TransparencyD- Value
A serving supplies 100 mg of GABA at a high cost. The source is unspecified. The other ingredients include an additive from the specified color or sweetener categories, but its identity is not available here.
How this ingredient is rated

Active Ingredient Quality & Bioavailability70

GABA is listed without a specific source or branded form.
GABA Source & Production Method
GABA is listed without a specific source or branded form.

Dose, Safety & Label Transparency72

The serving lists 100 mg of GABA. The other ingredients include an additive from the specified color or sweetener categories, but its identity is not available here.
GABA Dosage Adequacy & Transparency
The serving lists 100 mg of GABA.
Label Purity & Excipient Quality
The other ingredients include an additive from the specified color or sweetener categories, but its identity is not available here.

Value40

The cost per serving is high.
Price per Effective Dose
The cost per serving is high.
Theanine · 50 mg OverallScore70
B+ Active Ingredient Quality & BioavailabilityA- Dose, Safety & Label TransparencyF Value
The serving supplies 50 mg of L-Theanine at a high cost per 100 mg. That's a modest amount. The available information does not identify a branded source or a purity claim.
How this ingredient is rated

Active Ingredient Quality & Bioavailability80

The ingredient is specified as L-Theanine. The available information does not identify a branded source or a purity claim.
Isomer Specificity (L-Theanine)
The label specifies L-Theanine, the active form associated with calming and focus.
Branded Forms & Purity Standards
The available information does not identify a branded source or a purity claim.

Dose, Safety & Label Transparency86

The label clearly lists 50 mg per serving, a modest amount.
Theanine Dosage Efficacy
The serving provides 50 mg, a modest amount.
Label Transparency & Blends
The theanine amount and source are individually disclosed.

Value20

The cost per 100 mg of theanine is high.
Price per 100mg L-Theanine
The cost per 100 mg of theanine is high.
Valerian · 200 mg OverallScore64
D- Composition And Label DisclosureA+ Composition And Label DisclosureD- Commercial Price And Usability
The serving lists 200 mg of valerian and has a moderately high product cost per serving. The preparation is Valerian Extract. The valerenic acid percentage and extract ratio are not available.
How this ingredient is rated

Composition and Label Disclosure40

The preparation is Valerian Extract. The valerenic acid percentage and extract ratio are not available.
Marker and Preparation Disclosure
The valerenic acid percentage and extract ratio are not available.

Composition and Label Disclosure100

The label states 200 mg of valerian per serving.
Individual Preparation Amount Disclosure
The individual valerian amount is listed as 200 mg per serving.

Commercial Price and Usability40

The product cost per serving is moderately high.
Commercial Price per Labeled Serving
The product cost per serving is moderately high.
Report alternatives

Sources

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

  1. Acute and Repeated Ashwagandha Supplementation Improves Markers of Cognitive Function and Mood.
    Leonard M; Dickerson B; Estes L; Gonzalez DE; Jenkins V; Johnson S; Xing D; Yoo C; Ko J; Purpura M; Jäger R; Faries M; Kephart W; Sowinski R; Rasmussen CJ; Kreider RB · Nutrients · 2024
    Randomized trial59 participantsBrain Health forAshwagandha
  2. Effect of ashwagandha (Withania somnifera) extract with Sominone (Somin-On™) to improve memory in adults with mild cognitive impairment: A randomized, double-blind, placebo-controlled study.
    Rai HP; Mishra DN · Journal of psychopharmacology (Oxford, England) · 2025
    Randomized trial40 participantsBrain Health forAshwagandha
  3. Efficacy of Withania somnifera supplementation on adult's cognition and mood.
    Remenapp A; Coyle K; Orange T; Lynch T; Hooper D; Hooper S; Conway K; Hausenblas HA · Journal of Ayurveda and integrative medicine · 2022
    Randomized trial60 participantsBrain Health forAshwagandha
  4. A clinical assessment of the therapeutic effects of Ashwagandha root extract on cognitive performance, sleep, and fatigue in children aged 6-12 years.
    Saxena A; Lopresti A; Sharif M; Elon N; Suri R; Langade DK · Frontiers in nutrition · 2026
    Randomized trial85 participantsBrain Health forAshwagandha
  5. Efficacy and Safety of Ashwagandha Root Extract on Cognitive Functions in Healthy, Stressed Adults: A Randomized, Double-Blind, Placebo-Controlled Study.
    Gopukumar K; Thanawala S; Somepalli V; Rao TSS; Thamatam VB; Chauhan S · Evidence-based complementary and alternative medicine : eCAM · 2022
    Randomized trial130 participantsBrain Health Sleep Support Stress Relief forAshwagandha
  6. Antenatal magnesium sulfate and neuroprotection.
    Doyle LW · Current opinion in pediatrics · 2012
    Meta-analysis6,145 participants5 studies pooledBrain Health forMagnesium
  7. No. 376-Magnesium Sulphate for Fetal Neuroprotection.
    Magee LA; De Silva DA; Sawchuck D; Synnes A; von Dadelszen P · Journal of obstetrics and gynaecology Canada : JOGC = Journal d'obstetrique et gynecologie du Canada : JOGC · 2020
    Guideline / consensus4,446 participantsBrain Health forMagnesium
  8. Magnesium Sulfate Before Preterm Birth for Neuroprotection: An Updated Cochrane Systematic Review.
    Shepherd ES; Goldsmith S; Doyle LW; Middleton P; Marret S; Rouse DJ; Pryde P; Wolf HT; Crowther CA · Obstetrics and gynecology · 2024
    Systematic review5,917 participants6 studies pooledBrain Health forMagnesium
  9. Magnesium sulphate for fetal neuroprotection at imminent risk for preterm delivery: a systematic review with meta-analysis and trial sequential analysis.
    Wolf HT; Huusom LD; Henriksen TB; Hegaard HK; Brok J; Pinborg A · BJOG : an international journal of obstetrics and gynaecology · 2020
    Meta-analysis5,917 participants6 studies pooledBrain Health forMagnesium
  10. Magnesium sulfate and fetal neuroprotection: overview of clinical evidence.
    Chollat C; Marret S · Neural regeneration research · 2020
    Narrative reviewBrain Health forMagnesium
  11. 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
  12. 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
  13. 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
  14. 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
  15. 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
  16. 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 Sleep Support forTheanine
  17. 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
  18. 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 forTheanine
  19. 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 forTheanine
  20. 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 forTheanine