Suitcase TheoryA working theory of travelling light

Travel Routine

Sleeping in transit is scheduling, not talent

People who sleep well on the move are mostly people who arranged the conditions. Nearly all of those conditions can be arranged deliberately.

Airplane viewed from a car, parked on the tarmac at an airport with crew working nearby.
Photograph by Tokuo Nobuhiro via Pexels
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There is a short answer about sleeping in transit and a useful one, and they are not the same. What follows is the useful one.

The short version

  • Sleep needs darkness, a stable head and a body temperature that can fall.
  • Timing sleep against the destination clock matters more than total hours.
  • Alcohol shortens the time to fall asleep and degrades the sleep that follows.

What sleep actually needs

Falling asleep requires core body temperature to fall, which is why an overheated seat keeps you awake regardless of tiredness. Light suppresses the hormonal signal that begins sleep, and cabin lighting is designed around crew tasks rather than passengers. A head falling sideways triggers a small waking response each time, which is why support matters far more than softness.

Noise wakes people through changes rather than absolute volume, so a constant sound masks an intermittent one effectively. Every one of these is a condition you can influence, which is what separates people who sleep in transit from those who do not.

Timing against the destination

Sleeping at the wrong hour can make arrival worse, because it reinforces the clock you are actively trying to leave behind. The general approach is to sleep while it is night at the destination and stay awake while it is daytime there.

On a short overnight sector this can mean sleeping immediately rather than waiting for a meal service to finish. On a daytime flight arriving in the evening, staying awake is usually worth more than the sleep would have been. Setting a watch or a phone to destination time at departure is a small act that makes these decisions obvious.

The seat and what it can do

Window seats give you something to lean against and remove the interruptions caused by other people climbing past you. Rows near galleys and toilets carry light and movement all night, which outweighs a marginally better seat elsewhere. Reclining early, before the person behind has settled in, is socially easier than doing the same thing later.

On trains a rear-facing seat suits some people and a forward-facing one suits others, and it is worth knowing which you are. A bag under the feet raises the knees slightly and reduces the pressure that wakes people in a seated position.

The small kit that changes it

An eye mask is the single most effective item, because it removes light that no seat position can escape. Earplugs or noise-cancelling headphones handle the interruptions, and either performs far better than nothing at all.

A neck support that prevents sideways movement is what matters, rather than one that merely pads the back of the neck. A layer you can add and remove lets you manage temperature, which changes repeatedly across a long journey.

All of this fits into a small pouch and weighs very little, which makes it the cheapest sleep intervention available.

What makes it worse

Alcohol shortens the time taken to fall asleep and fragments what follows, producing hours in a seat with very little rest. Caffeine has a long half-life, so an afternoon coffee is still active at a bedtime several time zones away.

On a long trip, screens are a light source held close to the eyes, which is the least useful place for light to be at that moment. Large meals shortly before sleeping make it harder, which is one reason declining a late service is often the better choice. Sleep medication is a matter for a doctor rather than a travel article, and the risks in a seated position are real.

Arriving with a plan

Decide before departure which portion of the journey you intend to sleep through, then arrange the conditions for that portion. Tell crew or a companion if you would rather not be woken for a service, which most operators handle as routine.

Broken sleep in transit is still worth having, because fragmented rest beats none at all when the arrival is demanding. Plan the first hours after arrival around light exposure rather than around catching up, since light is what shifts the clock. The aim is not a good night but enough function to reach a proper bed at the right local hour.

The takeaway

Set your watch to destination time, decide which stretch you will sleep, and carry a mask, plugs and a spare layer.

The trip goes better when the bag is boring.

Questions readers ask

Should I sleep on the plane or stay awake?

Sleep when it is night at your destination and stay awake when it is day there. Total hours matter less than which hours.

Does a neck pillow help?

Only if it stops the head falling sideways. One that merely pads the back of the neck does very little.

Travel Routinesleepflyingrestroutine
Nadia Halloran
Editor, Suitcase Theory

Nadia edits Suitcase Theory and has been running the same 34-litre bag since 2018.

Also by Nadia Halloran