I treat insomnia often in my practice, and one question comes up again and again: "Should I take melatonin every night?"
Melatonin is one of the most popular sleep supplements in the U.S., and it can be helpful in the right situation. But it is not a universal solution for insomnia. Here is what I want you to know. Prefer to swipe? The full carousel from our Instagram is below.
Melatonin Is a Hormone, Not a Sleep Switch
Your brain naturally releases melatonin in response to darkness. It helps coordinate your circadian rhythm, your body's internal 24-hour clock, and signals that nighttime has arrived. Light at night can suppress this signal.
Think of melatonin as a nighttime message rather than a guaranteed sleep switch.
Who Might Benefit?
Melatonin may help with jet lag or a delayed body clock, when you naturally fall asleep and wake up much later than you want.
Persistent difficulty sleeping does not automatically mean you need more melatonin. The cause of your sleep problem matters.
Timing Matters
Taking melatonin earlier in the evening may help shift your body clock. A research review suggested that taking it about three hours before the desired bedtime may improve sleep outcomes.
But there is no single schedule for everyone. Timing depends on your sleep pattern, treatment goal, and formulation. Ask your clinician when to take it.
More Isn't Always Better
A larger dose does not guarantee better sleep. One research review found that benefits peaked around 4 mg. That does not mean everyone needs 4 mg, or that doses above 5 mg never work.
Avoid increasing your dose on your own. Discuss the lowest effective dose with your clinician.
Will Daily Use Help?
Sometimes, when melatonin is being used for a specific sleep-timing problem. Taking it every night does not guarantee improvement in chronic insomnia.
Short-term use appears relatively safe for many adults, but long-term safety is less certain. Possible side effects include daytime sleepiness, headache, dizziness, and nausea. Review ongoing use and medication interactions with your clinician.
Build Your Sleep Foundation
- Spend time outdoors during the day.
- Keep a consistent wake-up time, even on weekends.
- Move your body regularly.
- Avoid caffeine late in the day; its effects can last for hours.
- Avoid long or late naps.
Consistent habits support a consistent body clock.
Make Your Evenings Sleep Friendly
- Dim lights and reduce bright screens before bed.
- Create a calming wind-down routine.
- Keep your room cool, dark, and quiet.
- Avoid using alcohol as a sleep aid; it can disrupt sleep later in the night.
- Avoid heavy meals close to bedtime.
Choose habits you can repeat consistently.
Still Awake?
Go to bed when you feel sleepy. If you cannot sleep, get out of bed and do something quiet in dim light, then return when sleepy.
For chronic insomnia, ask about CBT-I (cognitive behavioral therapy for insomnia), the recommended first treatment for chronic insomnia. It combines sleep habits with strategies that address sleep-related worry, time in bed, and the connection between your bed and sleep.
Check the Supplement
In the U.S., the FDA regulates supplements differently from medicines and does not approve them for safety and effectiveness before sale. Look for a USP Verified mark to help confirm quality and labeled contents. Verification does not prove that melatonin will treat your insomnia.
Prescription Options
Research-backed prescription medications that act on melatonin receptors are available. Insurance may not approve them, so ask whether one fits your sleep problem.
The Bottom Line
Better sleep starts with understanding why you're not sleeping. My approach: understand the sleep problem, strengthen the routine, and individualize treatment.
If sleep has been a struggle, bring your questions to your next appointment, or call 626-371-3053 to schedule with NextGen Psyche and Wellness.
This article is for adult sleep education and is not a substitute for individual medical advice. Treatment recommendations may differ for each person.