The onset and duration of melatonin’s effects can vary by individual and formulation. Research indicates that:
- Regular tablets typically take 30-60 minutes to start working
- Sublingual (under-the-tongue) forms may work within 15-30 minutes
- Effects generally last 4-8 hours
For best results, take melatonin 30-60 minutes before your intended bedtime. Studies show that timing is crucial – taking it too early or too late can disrupt your sleep-wake cycle. The supplement works best when combined with good sleep hygiene practices, such as maintaining a consistent sleep schedule and avoiding screens before bedtime.
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Last Updated: September 1, 2025
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