30/05/2026
Melatonin is a hormone your brain makes naturally when it gets dark. The tablet version is basically “darkness in a pill” — it signals to your body that it’s sleep time.
Main benefits:
Fall asleep faster
Best researched use. If you have trouble falling asleep, 0.5-5 mg can cut sleep onset time by 10-20 min on average. Works better for sleep-onset insomnia vs waking up at 3am.
Jet lag
Travel across time zones messes up your internal clock. Taking melatonin at local bedtime for a few nights helps reset it faster. This is where it’s most effective.
Shift work sleep disorder
If you sleep during the day because of night shifts, it can help you fall asleep when the sun is up.
Circadian rhythm issues
For “night owls” with Delayed Sleep Phase Syndrome, low doses taken early evening can gradually shift bedtime earlier.
Kids with sleep issues
Doctors sometimes use it for kids with ADHD or autism who have trouble sleeping, but only under supervision.
What it doesn’t do well:
It’s not a sleeping pill. It won’t knock you out like benzos. It won’t keep you asleep all night if you have frequent awakenings. And it doesn’t work for general anxiety or insomnia unrelated to timing.
Dosage basics:
Lower is often better. 0.5-1 mg is enough for many people. 3-5 mg is the common OTC dose. Above 10 mg usually doesn’t help more and increases grogginess. Take 30-60 min before bed.
Notes:
Melatonin is generally safe short-term, but can cause morning grogginess, vivid dreams, or interact with blood thinners, seizure meds, and diabetes meds. Long-term safety data is still limited.
It works best with good sleep hygiene — dark room, no screens, consistent bedtime. The pill fixes timing, not bad habits.
If you’re thinking of trying it, best to check with a doctor first, especially if you have other health conditions or take meds.
Want me to break down how to use it for jet lag vs regular insomnia?