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Extra Strength Tranquil Sleep

Natural Factors Stress-Relax
4.5
(2411 ratings)
Theanine 200 mg
Melatonin 6 mg
5-HTP 15 mg
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Score94

A high-strength sleep tablet with 6mg of melatonin and premium Suntheanine for deep calm.

How scoring works
Quantity:60 Tablet(s)(60 servings)
Goals:
Sleep Support
Stress Relief
Mood Support
Cognitive Support
Brain Health

Score 94

A high-strength sleep tablet with 6mg of melatonin and premium Suntheanine for deep calm.

How scoring works
$34.97($0.58 per serving)
iHerb
$ 34.97
iHerb
$ 34.97
Amazon
$ 34.97
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Analysis

This formula delivers a strong 6mg dose of melatonin and 200mg of Suntheanine in a single tablet. The Suntheanine is a high-purity form of theanine that is excellent for helping your mind relax. It also includes a small amount of 5-HTP for added support.

It is designed for people who need more help with sleep initiation and mental calm. Because it's a tablet, it doesn't have the sugars found in gummies. It is a very effective and high-quality option for tough nights.

Pros

  • Strong 6mg melatonin dose
  • Uses high-purity Suntheanine
  • No added sugars or calories
  • Convenient once-nightly tablet

Cons

  • Higher dose might cause vivid dreams
  • More expensive than standard tablets
  • May cause morning grogginess

Warnings

  • Do not use every night unless necessary
  • Avoid if taking mood-altering prescriptions
  • Ensure you have at least 8 hours to sleep

Nutrient quality

94 Highest impact

The inclusion of Suntheanine ensures a high-purity, clinically-studied source of L-theanine for reliable relaxation. While 15mg of 5-HTP is a relatively low dose, the core theanine and melatonin levels are robustly formulated.

Ingredient transparency

99 Highest impact

Labeling is exceptionally clear, specifically naming the branded form of theanine and every active dose. All components are transparently listed, making it easy for users to evaluate the supplement's strength.

Customer satisfaction

93 Highest impact

Broad user feedback and high ratings suggest the product is effective for most consumers. The reliability of the Suntheanine form likely contributes to the consistent positive experiences reported by users.

Value for money

86 Highest impact

The cost per serving is slightly higher than average, but the quality of the raw materials, particularly the branded theanine, justifies the price. Each dose provides meaningful value through high-purity actives.

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Goals

Impact
Highest effect
A+ Goal FitA+ Strength of SupportA+ CoverageA+ Formula Quality

Suntheanine, Melatonin, and 5-HTP are combined in this formula for multifaceted sleep support.

Providing 200mg of Suntheanine and 6mg of melatonin appears well aligned with helping the body fall asleep faster and stay asleep.

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Impact
Highest effect
A+ Goal FitA Strength of SupportA- CoverageA+ Formula Quality

Includes 200 mg of Suntheanine L-Theanine, 6 mg of Melatonin, and 15 mg of 5-HTP. This synergistic combination addresses relaxation and sleep support through multiple neurotransmitter pathways.

Suntheanine is a premium, high-purity form of L-Theanine known for inducing a state of calm. While the 5-HTP dose is low, the overall formula provides robust support for quieting the mind and easing the transition to rest.

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Impact
Highest effect
A Goal FitA- Strength of SupportA- CoverageA+ Formula Quality

Suntheanine L-Theanine, 5-HTP, and Melatonin.

This sleep-focused combination supports a calm mind and aids in the synthesis of serotonin for improved mood resilience.

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Impact
Highest effect
A- Goal FitA+ Strength of SupportC CoverageA+ Formula Quality

This nighttime formula utilizes Suntheanine and melatonin to support restorative sleep, which is fundamental for cognitive recovery and next-day performance. The presence of 5-HTP further assists in the synthesis of neurotransmitters involved in mood and sleep regulation.

While not an acute daytime focus aid, its role in improving sleep quality makes it a valuable tool for long-term mental clarity and cognitive health. It is particularly useful for individuals whose cognitive deficits are rooted in poor sleep hygiene.

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Impact
Highest effect
B+ Goal FitA- Strength of SupportB- CoverageA+ Formula Quality

L-theanine and 5-HTP support the synthesis of inhibitory neurotransmitters to promote relaxation and mental calm. Melatonin appears well aligned with the regulation of sleep-wake cycles for cognitive recovery.

This formulation provides focused support for rest through a logical combination of amino acids and hormone support. Meaningful dosages of the primary nootropics ensure that the pathways for nighttime mental recovery are effectively addressed.

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Impact
Moderate effect
D- Goal FitA Strength of SupportF CoverageD- Formula Quality

Suntheanine L-Theanine is paired with Melatonin and 5-HTP in these tablets to support evening relaxation and sleep transition. While the branded theanine is of high quality, the inclusion of Melatonin is specifically intended to promote drowsiness.

The presence of sedative agents directly opposes the goal of maintaining mental focus during active periods. This formulation appears best suited for nighttime use to support rest rather than cognitive performance or alertness.

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Impact
Lower effect
D- Goal FitC Strength of SupportF CoverageD+ Formula Quality

L-theanine, 5-HTP, and melatonin are combined in this formula to support relaxation and nighttime rest. These ingredients work together to modulate neurotransmitters like serotonin and melatonin, which are essential for the sleep cycle.

The formulation appears poorly aligned with acute productivity needs due to its sedative properties. While theanine supports focus, the significant melatonin content is likely to cause drowsiness during hours of desired peak performance.

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Ingredients

IngredientAmount per serving
Calories
10 Calorie(s)
Total Carbohydrates
2 Gram(s)
Suntheanine L-Theanine
200 mg
5-HTP (Griffonia simplicifolia)
15 mg
Melatonin
6 mg
Gluten Free Adults 18–50 Vegan Dairy Free Vegetarian
Report overview
Theanine · 200 mg OverallScore100
A+ Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyA+ Value
Featuring Suntheanine®, this sleep supplement delivers a pure and clinically studied dose of L-Theanine for rest. It is a premium choice for individuals who want the highest quality ingredients in their sleep regimen.
Melatonin · 6 mg OverallScore58
D Active Ingredient Quality & BioavailabilityB+ Dose, Safety & Label TransparencyF Value
This multi-ingredient tablet combines melatonin with L-Theanine and 5-HTP for a multi-faceted approach to sleep. While it includes third-party lab testing for quality, the high price and standard tablet format are significant considerations.
C+ Active Ingredient Quality & BioavailabilityF Dose, Safety & Label TransparencyF Value
This multi-ingredient sleep aid uses a very low dose of 5-HTP alongside Melatonin and Theanine to promote restful sleep. It is better suited for nighttime recovery rather than focused serotonin or mood support due to its complex formula.
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