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Tranquil Sleep

Natural Factors Stress-Relax
4.5
★ ★ ★ ★ ★
(3221 ratings)
Theanine 200 mg
Melatonin 3 mg
5-HTP 30 mg
Product Image
Score94

A bulk-sized, high-quality sleep aid with Suntheanine and a standard 3mg melatonin dose.

How scoring works
Quantity:120 Tablet(s) • (60 servings)
Goals:
Sleep Support
Stress Relief
Brain Health
Mood Support
Cognitive Support

Score 94

A bulk-sized, high-quality sleep aid with Suntheanine and a standard 3mg melatonin dose.

How scoring works

Also available as

2 options
6.00mg • 60 Tablet(s) servings Melatonin 6 mg, 5-HTP 15 mg +1 more • 60 Tablet(s) • 60 servings $34.97 ($0.58 per serving) 60 servings Melatonin 3 mg, 5-HTP 30 mg +1 more • 60 Tablet(s) • 30 servings $22.37 ($0.74 per serving)
$41.97($0.69 per serving)
iHerb
$ 41.97
Amazon
$ 41.97
Vitacost
$ 41.97
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Analysis

This is the same formula as the 60-count version but in a much larger bottle for a lower price per dose. It combines 200mg of Suntheanine with 3mg of melatonin and a bit of 5-HTP. This mix helps you feel relaxed both mentally and physically before you fall asleep.

The Suntheanine is particularly good for reducing mental chatter without making you feel heavily sedated. It is a very high-quality product that uses standardized ingredients for consistent results. This is one of the most reliable sleep aids you can buy.

Pros

  • Best value in the 120-count size
  • Uses premium Suntheanine
  • Covers several sleep pathways
  • Once-nightly tablet

Cons

  • Tablet format may be harder to swallow than softgels
  • Only includes a small dose of 5-HTP
  • Higher upfront cost for the large bottle

Warnings

  • Avoid using with alcohol
  • Do not drive after taking
  • May cause drowsiness the next morning

Nutrient quality

95 Highest impact

Clinical doses of melatonin and theanine provide robust support for the sleep-wake cycle. Utilization of premium Suntheanine ensures maximum isomer purity for nighttime mental calm.

Ingredient transparency

100 Highest impact

All active components and dosages are clearly defined on the supplement facts panel. High transparency regarding the branded source of theanine provides added assurance of quality.

Customer satisfaction

94 Highest impact

Ratings reflect high satisfaction among users for improving sleep latency and quality. A massive volume of feedback confirms the product is reliable and effective for a broad audience.

Value for money

86 Highest impact

The cost per serving reflects the inclusion of three high-quality functional actives. It offers a good balance of efficacy and cost for individuals seeking comprehensive sleep support.

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Goals

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

Suntheanine, 5-HTP, and Melatonin are included in this blend for multi-pathway sleep support.

Providing 200mg of Suntheanine and 3mg of melatonin appears well aligned with clinical data for improved relaxation and rest onset.

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

Combines 200 mg of Suntheanine L-Theanine with 30 mg of 5-HTP and 3 mg of Melatonin. This multi-pathway formulation addresses both acute relaxation and the transition into sleep.

Suntheanine provides a potent dose for inducing alpha wave activity and mental calm. While the 5-HTP dose is supportive, the overall synergy between the inhibitory amino acids and the sleep hormone is well suited for evening stress relief.

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

Integration of L-Theanine, 5-HTP, and Melatonin supports brain health by optimizing sleep architecture and reducing evening mental overactivity.

These ingredients contribute to cognitive recovery by facilitating restorative rest and balancing neurotransmitter precursors.

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

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

This evening combination supports a quiet mind and aids in the synthesis of serotonin for improved mood resilience and relaxation.

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

This nighttime formula combines Suntheanine with 5-HTP and melatonin to support restful sleep, which is vital for maintaining cognitive performance and memory. The use of a branded theanine source ensures a consistent level of support for mental relaxation in the evening.

While designed for sleep, the synergistic effects of these neurochemical precursors may contribute to improved mental resilience and morning clarity. This product is ideal for individuals seeking to optimize their cognitive health through improved recovery cycles.

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

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

The inclusion of sedative agents directly conflicts with the objective of maintaining acute mental focus during active periods. This formulation is better aligned with nighttime rest than with the need for sustained concentration or alertness.

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

This blend combines Suntheanine l-theanine with 5-HTP and melatonin to promote relaxation and support the transition to sleep. These ingredients work synergistically to quiet the mind and regulate the sleep-wake cycle for a restorative night.

The formulation appears poorly aligned with acute productivity needs as it is designed to reduce alertness and induce sleep. While restorative sleep is vital, this product is likely to cause immediate drowsiness rather than focus.

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Ingredients

IngredientAmount per serving
Calories
15 Calorie(s)
Total Carbohydrates
3 Gram(s)
Suntheanine L-Theanine
200 mg
5-HTP (Griffonia simplicifolia)
 30 mg
Melatonin
3 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
This premium formula combines Suntheanine® with 5-HTP and Melatonin for ultimate nighttime support. It is designed to help quiet the mind and improve overall sleep architecture and quality.
View ingredientView products
Melatonin · 3 mg OverallScore65
C Active Ingredient Quality & BioavailabilityB+ Dose, Safety & Label TransparencyF Value
This chewable tablet combines 3mg of melatonin with L-theanine and 5-HTP for relaxation. It is designed to address multiple pathways for falling asleep quickly and peacefully.
View ingredientView products
5-HTP (Griffonia simplicifolia) · 30 mg OverallScore42
C+ Active Ingredient Quality & BioavailabilityF Dose, Safety & Label TransparencyF Value
Designed for relaxation, this formula combines a modest amount of 5-HTP with other calming agents to help ease the transition into sleep. It is a gentle option for those who prefer synergistic blends over high-potency single-ingredient products.
View ingredientView products
90 Value

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Tranquil Sleep

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4.4
★★★★★
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★★★★★
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Triple Action Sleep

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4.3
★★★★★
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Genius Sleep Aid

The Genius Brand
5.0
★★★★★
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Other sellers (1)
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Other sellers (2)
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★★★★★
(457 ratings)
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