
Natural Factors Stress-Relax Tranquil Sleep Tablet, 120 Count
- Tasty fruit flavored chewable tablet
- Contains 5-HTP, Suntheanine and Melatonin
- Safe, fast acting formula
Mubboo Value Score: 3.2/10
How it stacks up
Rated 4.5/5 — better than 88% of 80 Sleep Aids we track. Premium-tier pricing at $41.97.
Head-to-Head vs Category Leader
| Natural Factors | ZzzQuil (Leader) | |
|---|---|---|
| Price | $41.97 | $15.97 |
| Rating | 4.5/5 | 4.7/5 |
| Reviews | 2,216 | 9,644 |
| Mubboo Score | 3.2/10 | 5.4/10 |
The category leader ZzzQuil , Sleep Aid, Nighttime Sleep Aid Liquid, offers better ratings at $15.97.
What reviewers say
Synthesized from 40 reviews · 100% verified purchases.
For sleep supplements, start with a low dose to avoid next-day grogginess, especially with doxylamine. When choosing a sound machine, consider its placement and durability, as some units may fail over time.
Rating reliability
About Natural Factors
- 7 products in our database
- Average rating: 4.5/5 across all products
- Price range: $11.87 – $41.97
- Categories: herbal-supplements, lipid, Sleep Aids, sleep-supplements, Vitamin D Supplements
Other Sleep Aids




Frequently Asked Questions
Is the Natural Factors Natural Factors Stress-Relax Tranquil Sleep Tablet, 12 worth buying in 2026?
It earns a Mubboo Score of 3.2/10, with a 4.5/5 rating from 2,216 reviews — better than 88% of Sleep Aids we track.
How much does the Natural Factors Natural Factors Stress-Relax Tranquil Sl cost?
It is currently $41.97 — premium-tier pricing for Sleep Aids.
How does it compare to the top-rated Sleep Aids?
The category leader ZzzQuil , Sleep Aid, Nighttime Sleep Aid Liquid, offers better ratings at $15.97.
Sources & References
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