# Armchair Jetlag

> Beat jet lag before you board. Armchair Jetlag is an Android app that generates a personalised light, caffeine, and sleep schedule based on circadian science — so you land sharp, not exhausted.

Armchair Jetlag is built on peer-reviewed chronobiology research. The core approach is pre-flight adjustment: shifting your body clock before departure using timed light exposure, caffeine cutoffs, and sleep windows. This is more effective than trying to recover after landing.

The app is available on Google Play. The first trip is free with no credit card required. Ongoing access is available via a monthly subscription or a 5-trip pack.

## Pages

- [Home](https://armchairjetlag.com/): Overview of the app, how it works, daily schedule features, FAQ, and download links.
- [How to Beat Jet Lag: The Science-Based Guide](https://armchairjetlag.com/how-to-beat-jet-lag): A comprehensive guide covering the circadian science behind jet lag, the roles of light, melatonin, caffeine, and sleep, and why pre-flight adjustment outperforms post-arrival recovery.
- [How to Sleep on a Plane: The Complete Guide](https://armchairjetlag.com/how-to-sleep-on-a-plane): Evidence-based strategies for improving sleep quality in-flight, including seat selection, light management, timing sleep relative to destination time, and avoiding common mistakes.
- [East vs West Jet Lag: Which Direction Is Harder?](https://armchairjetlag.com/east-vs-west-jet-lag): Explains why eastward travel causes more severe jet lag than westward travel, the role of the circadian rhythm's natural period, and direction-specific recovery strategies.
- [Privacy Policy](https://armchairjetlag.com/privacy-policy): Data collection, storage, and usage practices for the app and website.
- [Terms of Service](https://armchairjetlag.com/terms-of-service): Terms governing use of the Armchair Jetlag app and website.

## Key facts

- Platform: Android (Google Play)
- Developer: Armchair Jetlag
- Contact: support@armchairjetlag.com
- Website: https://armchairjetlag.com
- App ID: com.armchairjetlag.app
- Free first trip, no credit card required
- Science basis: circadian rhythm research, chronobiology
- Core methods: light exposure timing, caffeine scheduling, sleep window adjustment
- Pre-flight adjustment is the primary approach (not post-arrival recovery)

## What the app does

Users enter their flight details. The app generates a day-by-day schedule starting before departure covering:
- When to seek bright light and when to avoid it
- When to stop consuming caffeine
- When to shift their sleep window toward destination time

The schedule is tailored to the specific direction and number of time zones crossed. Flying east (e.g. Sydney to London) requires advancing the clock; flying west (e.g. Sydney to Los Angeles) requires delaying it. The app handles both.