Stop Taking Melatonin As a Sleep Pill

Melatonin and the Circadian Rhythm

The video argues that melatonin is better understood as a way to influence the circadian rhythm—the body’s internal clock—rather than simply as a pill to take just before bed. When you take it may affect when you feel sleepy and whether you feel groggy the next morning.

Key Strategies and Practical Tips

• Consider timing, not just dose. The video cites a 2024 analysis suggesting that 3–4 mg taken about three hours before bedtime may help increase sleep duration and reduce the time it takes to fall asleep. Taking melatonin earlier may shift the body clock earlier, while taking it close to bedtime may shift it later and contribute to morning grogginess.
• Match the timing and formulation to your goal. To shift to an earlier schedule, the video suggests considering low-dose, rapid-release melatonin earlier in the evening. It also describes research in which 0.5 mg taken about six hours before a person’s usual bedtime shifted the body clock earlier. For older adults with insomnia, it notes studies of 2 mg extended-release melatonin taken 1–2 hours before bed.
• Use the lowest effective dose. The cited analysis found peak effectiveness at 4 mg, but the video emphasizes that this does not mean everyone needs that amount.
• Build consistent circadian cues into your day:
  • Get daylight soon after waking.
  • Keep a consistent wake-up time and, where possible, a regular bedtime.
  • Dim lights as bedtime approaches. Amber or red light may be less disruptive than blue or green light.
  • Sleep in darkness or use a sleep mask.
• Identify the reason for sleep difficulties. The video cautions that melatonin will not treat sleep apnea or other underlying causes of repeated waking.
• Track your response. Notice whether you fall asleep more easily, sleep longer, and feel better in the morning.
• Consider concerns about dependence or suppression. The video says studies of extended-release melatonin use in people with insomnia found no evidence of suppressed natural melatonin production after stopping, or of typical withdrawal or rebound insomnia.

Presenters and Sources

• Presenter: Siim Land, as identified by the channel metadata.
• Research described in the video: A 2024 meta-analysis of 26 randomized controlled trials; a study of melatonin timing and circadian shifts; a controlled human study of evening light exposure; and studies of extended-release melatonin use in older adults and people with insomnia. The subtitles do not provide specific study authors or titles.
• Book mentioned: The New Science of Supplements, by Siim Land.