What is Jet lag light timing before travel for?

Use morning and evening light cues to shift a sleep schedule gradually before a trip. It helps turn bedroom light, screen timing, temperature, humidity or routine clues into one practical next action.

Is this medical advice?

No. Drift Light pages are practical bedroom-environment guides. They do not diagnose, treat or measure medical sleep problems.

What should I change first?

Change one visible bedroom cue first, such as late bright light, close screen use, room heat, damp air or airflow. Keep the rest of the routine stable for a night or two so the result is easier to read.

Bedroom guide · clock shift

Jet lag light timing before travel

Use morning and evening light cues to shift a sleep schedule gradually before a trip.

Read, then test.

The best guide page leads back to one small room experiment.

Jet lag planning is easier before travel than after arrival. If the target schedule is earlier, bring morning light forward and reduce late evening brightness. If it is later, shift the cues in the opposite direction cautiously.

The useful step size is modest. Moving the clock fifteen to thirty minutes per day is easier to repeat than forcing a two-hour change in one night.

Light timing works alongside meals, obligations and travel fatigue. Keep the plan simple enough to follow.