Ashwagandha (Withania somnifera) vs Melatonin
Both are used for sleep better. Here's how they compare on human evidence, mechanism, safety and availability — in plain English.
| Ashwagandha (Withania somnifera) | Melatonin | |
|---|---|---|
| Human evidence | ★★★★☆ | ★★★★★ |
| Legal status | OTC Supplement | OTC Supplement, Prescription |
| How it works | Withanolides act on the HPA axis to lower cortisol and modulate GABA receptors; reduces the cortisol-driven suppression of testosterone. | Pineal hormone binding MT1/MT2 receptors (MTNR1A/MTNR1B) in the suprachiasmatic nucleus — shifts the circadian clock rather than sedating. Most people massively overdose it. |
| In plain English | Turns down the stress-hormone (cortisol) thermostat, which improves sleep, calm, and — because stress suppresses testosterone — modestly raises T in stressed men. | The "it's night" hormone. It re-times your body clock, so it's best for jet lag and late sleep phase, not as a sledgehammer sedative. 0.5 mg works as well as 10 mg with less morning fog. |
| Bottom line | Best-evidenced adaptogen for stress, sleep, and hormones. | Overused at 10–20× the effective dose. Start at 0.5 mg. |
| Availability | Available over the counter | Prescription only |
Which is better for sleep better?
Melatonin has the stronger human-evidence rating (★★★★★ vs ★★★★☆), but the right choice still depends on your goal, tolerance and budget.
Full breakdowns: Ashwagandha (Withania somnifera) · Melatonin.
Common questions
Is Ashwagandha (Withania somnifera) or Melatonin better for sleep better?
Melatonin has the stronger human-evidence rating (★★★★★ vs ★★★★☆), but the right choice still depends on your goal, tolerance and budget.
What's the difference between Ashwagandha (Withania somnifera) and Melatonin?
Ashwagandha (Withania somnifera): Best-evidenced adaptogen for stress, sleep, and hormones. — Melatonin: Overused at 10–20× the effective dose. Start at 0.5 mg.