Jet lag happens because your internal clock is out of sync with your destination. Your body thinks it's one time while the local clock says another. Melatonin is commonly used to help reset this — but only if you use it strategically.
The key is timing. When you arrive at your destination, you want to take melatonin close to the local bedtime (not your original bedtime). This signals to your body that it's time to sleep on the new schedule. Taking it at the wrong time can actually make jet lag worse.
A practical routine: on the first night after arrival, wait until the local sunset and start your new bedtime routine. Take one melatonin gummy 30-60 minutes before your new local bedtime. Stick to this new time for the next 3-5 nights, even if it feels off.
Light exposure matters as much as melatonin. Get bright light (especially sunlight) in the morning at your destination. This resets your circadian rhythm faster than melatonin alone. Melatonin is support for a light-based strategy, not a substitute.
For short trips (1-3 days), you might skip melatonin and just adjust your sleep schedule. For longer trips, melatonin plus light exposure plus a consistent bedtime is the most evidence-aware approach.
Before you travel with melatonin, consult a healthcare professional if you take medication, are pregnant, or breastfeeding. Some people are more sensitive to melatonin or have conditions where it's not ideal.
Heading out? Get bright morning light at your destination, take melatonin close to local bedtime starting night one, and stick to the new schedule for at least 3-5 days. Your body adapts faster than you think.