tell me about your flight

Drop a flight number and we'll pull the schedule. The plan is on the next screen.

Flight legs

Leg 1 · flight #

Date (origin local)

Chronotype

Rigour — how aggressive should the daily shift be?

Caffeine OKMelatonin OK (0.5 mg)

+Advanced options (optional)

I'm 55 or older

Older travelers (55+) may need wider light windows and longer adaptation. The plan adjusts automatically.

Cataract or age-related macular degeneration

Reduces retinal light delivery. The plan favors outdoor light over indoor and extends strong-seek windows.

Mostly indoor lifestyle / low outdoor light routine

Treated symmetrically with cataract/AMD — extends strong-seek windows to compensate.

Sedating medication or alcohol on flight

Sedating drugs and alcohol blunt the in-flight melatonin signal and skew post-landing sleep pressure. The plan suppresses redundant melatonin and softens caffeine timing.

I'm a slow caffeine metabolizer

CYP1A2 *1F/*1F genotype, hormonal contraceptives, pregnancy, or smoking cessation slow caffeine clearance. Extends the no-caffeine block by 2 hours.

Schedules pulled from AeroDataBox. Plan is deterministic — same inputs always yield the same output. Not medical advice.