The science
A plan for your trip, with limits made clear
Tell us about your flights and usual sleep. You get a day-by-day plan for sleep, light and caffeine, with your flights on one timeline.
What you tell us
Your flights, usual sleep times and caffeine preferences give the plan its starting information. You also answer questions about your health and what is practical during the trip.
What you get
Your timeline brings together sleep opportunities, times to seek or avoid light, and caffeine guidance if you include it. The plan may start before departure where that can help prepare your timing.
Your answers matter
The plan can reflect your caffeine preferences, sleep arrangements and the time you have before departure. Some health answers change the guidance. ChronoFlow offers plans to adults only, and not to people who have recently done shift work or who do not usually sleep in one regular nightly episode.
Dates are estimates
Your plan shows an expected adjustment date when it can estimate one, and flags uncertainty where it applies. It may also tell you that adjustment is still continuing when the plan ends. A date is not a promise about how you will feel that day.
Evidence and practical choices
Published studies do not answer every practical question about a trip. ChronoFlow makes planning choices where the evidence leaves gaps; those choices are not findings from a clinical trial.
What a plan cannot know
ChronoFlow does not measure your body clock or know how much sleep you actually get. It cannot guarantee a particular clock shift or predict how you will feel, and its guidance does not replace medical advice.
Ready to try it on your next trip?
Plan your trip