Pre-Flight, In-Flight, Post-Flight Sleep Plan
Plan each travel phase to reduce jet lag and travel fatigue
- Difficulty
- Moderate
- Time to result
- ~days to results
- Steps
- 6
- Confidence
- 98%
Mah divides travel sleep management into pre-flight, in-flight, and post-flight phases. Before departure, avoid panic packing, protect at least the sleep amount that supports normal function, and, when practical, shift bedtime and wake time by about 30 minutes for several days. Morning light can reinforce an earlier shift. During travel, hydrate, begin aligning sleep and meals with the destination, and use a portable kit such as an eye mask, earplugs, noise-cancelling headphones, and a pillow. After arrival, use or avoid light at strategically chosen times, allow at least a lower-demand day to acclimate, and deploy short naps or caffeine selectively. She gives a rough rule that each crossed time zone may take about a day for full physiological readjustment.
Origin
Extracted from The Diary of a CEO
Core principles
- 01Jet-lag management begins before departure
- 02Light is a powerful cue for shifting the body clock
- 03Hydration, sleep timing, and meal timing support adaptation
- 04The first day should not carry the trip's highest demands
How to run it
- 1
Map the trip
Identify the time-zone difference, direction of travel, flight timing, and first important commitment. Build the plan before the final evening.
Pro tip Use a reputable time-zone planning app if it clearly specifies when to seek or avoid light.
- 2
Protect pre-flight sleep
Pack a day or two early where possible and obtain at least the amount of sleep that normally supports good function. Avoid beginning the trip already restricted.
Watch out Mah says insufficient pre-flight sleep can make travel fatigue and jet lag feel worse.
- 3
Pre-shift gradually
For a manageable time difference, move bedtime and wake time by about 30 minutes per day for two or three days. Use appropriately timed light to reinforce the direction of change.
Pro tip For an earlier schedule, Mah specifically describes getting sunlight in the morning.
Watch out Light timing differs by travel direction; poorly timed exposure can work against the intended shift.
- 4
Synchronize in flight
Hydrate and begin aligning sleep and meal timing with the destination. Use the travel sleep kit when the plan calls for rest.
Pro tip Keep the kit in hand luggage so it is accessible on the plane.
Watch out Mah recommends minimizing or eliminating in-flight alcohol and being strategic with caffeine.
- 5
Control arrival cues
Seek or avoid light according to the required clock shift, using sunglasses when avoidance is needed. Follow destination timing and allow the body clock time to readjust.
Watch out Feeling better after one day does not necessarily mean physiological adjustment is complete.
- 6
Lower first-day demands
Avoid scheduling the most important meeting or maximal athletic effort immediately after arrival. Use short naps and caffeine strategically during temporary alertness dips.
Watch out Mah says acute jet lag may increase injury risk for athletes doing maximal exercise.
In the wild
Mah describes a West Coast traveller heading to the East Coast. The traveller moves bedtime and wake time 30 minutes earlier for two or three days and gets morning sunlight, reducing how much adjustment remains after arrival.
→ Part of the clock shift occurs before the flight rather than entirely at the destination.
Common mistakes
Panic packing
Packing immediately before departure can cut the final night's sleep and begin the trip with avoidable restriction.
Adjusting only after landing
Mah argues that waiting until arrival wastes the opportunity to pre-shift and plan sleep, meals, hydration, and light.
Scheduling the biggest task first
The framework reserves the initial arrival period for adaptation rather than maximal work or exercise.
Is it for you?
Best for
It is best for travellers crossing multiple time zones who know the itinerary early enough to prepare.
Not ideal for
It is not individualized treatment for complex medical needs, medication decisions, or travel schedules with no room to adapt.
From the transcript
“have a game plan for every trip”
“dehydration can worsen jet lag”
“seeking light that is the most powerful signal to your brain”
From the episode
The Woman Who Helps Athletes Sleep: Stop Having Showers Just Before Bed! New Science! ‘Nappucino’ Phenomenon You Need To Know!