What Vitamin D3 Does in the Layered SLEEPWELL Evening Formula
Learn where vitamin D3 fits in SLEEPWELL without treating it like a bedtime switch.
This guide maps vitamin D3 into the current SLEEPWELL evening formula. The label declares 5 µg vitamin D3 per complete 2-capsule serving, while amino-acid, mineral, vitamin, folate, and botanical layers make up the full eight-row panel.
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Video chapters
- 00:00 Why vitamin D3 is in the formula
- 00:30 VDR and the dimmer-panel analogy
- 01:07 The complete SLEEPWELL serving
- 01:38 Why layered evening formulas differ
- 02:18 Overlap checks and safety
Research and educational sources
- Distribution of VDR in human brain tissue, PMID 15589699
- A proposed vitamin D and TPH2 mechanism, PMID 24558199
- Systematic review of vitamin D and sleep quality, PMID 35578558
Important information
Take 2 capsules daily with water, preferably in the evening. May cause drowsiness; do not drive or operate machinery after use. Consult a healthcare professional before use during pregnancy or breastfeeding, or with an antidepressant or other serotonergic medication. Consult a healthcare professional before use if you take medication. Do not exceed the recommended daily dose.
The cited sources do not test SLEEPWELL and do not establish that its 5 µg vitamin D3 changes sleep, serotonin, or melatonin. Always review the current product page and your own label. Educational content only; not medical advice.