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0:00 · The road
Around 3 am, the body calls for sleep.
At these hours the need for sleep is at its highest and alertness at its lowest: the critical window opens.
Watch this passage (0:00) →Episode 03:00 Online
The critical window
Online · version of 02.10.2026 · on our channels on 26.10.2026
The 24 Hours
Prevent sleepiness before you drive. Don't fight it at the wheel.
Around 3 the body asks for sleep. In the hours before dawn alertness is at its lowest: not weakness, but the body's rhythm. Stopping is not losing time. A short pause is the simplest way to arrive.
In the video
Details 48 s · 9:16 · four languages · generated images, voice and music, declared as such · 2026-09-06 · Drive Awake
What helps
A break works if it comes before the signs, not after: by the time yawning and lane drift appear, performance has already fallen. Ten minutes of sleep at a rest area work at once and hold for more than two hours (Brooks and Lack 2006). If the journey can start after sunrise, it starts after sunrise.
The video explained
5 scenes, with notes and sources
0:07 · The hands
Sleepiness has a schedule. The body knows it.
Neither chance nor weakness: the circadian rhythm assigns sleep to the night, even for those who have to drive.
Watch this passage (0:07) →0:14 · The night
In the hours before dawn, alertness is at its lowest.
Between 2 and 6, sleepiness-related crashes are the most frequent: the road is empty, the risk is not.
Wright, Hull, Czeisler 2002 · DOI 10.1152/ajpregu.00205.2002
Watch this passage (0:14) →
0:20 · The rest area
Stopping isn't a waste of time.
A short pause at a rest area is the most effective measure: the body takes back what it asks for.
Watch this passage (0:20) →
0:27 · Dawn
A short break is the simplest way to get there.
With the morning light alertness rises again: the journey resumes when the body is ready.
Watch this passage (0:27) →What changed in this text
1 correction · on 17.09.2026
The corrections made to this text, with their date, their reason and the lines they touched.
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Two loan translations in German, and a missing referent
A third engine read every line in its own language alone, without the others beside it: that is the test loan translations need, and the one cross-comparison cannot give. In German «besetzt seinen Platz» echoed the Italian «ne prende il posto» (German says «nimmt seinen Platz ein»), and «die Summe nimmst du mit ins Bett» was the same loan translation we had already fixed in French on 16 September. In hour 09 the coffee line did not say what it was about: German and English named the coffee, Italian and French did not. All four name it now. The other languages followed: in French «deux, six et seize heures» dropped the word «heures» from the first two, which Italian allows and French does not, and «comme en plein jour» places an action in time rather than describing how someone drives; in English «the body asks for sleep» echoed «chiede il sonno» and becomes «calls for». Italian had no loan translations at all: it is the language the lines are written in.
Lines touched EN line 1
Revisions that concern the whole series are in the campaign diary →
The text, in all four languages
6 lines
The same lines you see in the video, side by side. This is where the gaps between languages show: a turn of phrase that does not hold, a word out of place, a figure that changes weight. If you find one, the button next to the line opens the report with hour, language and minute already filled in. All episodes on one page →
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line 1 0:01
IT
Verso le 3, il corpo chiede il sonno.
FR
Vers 3 heures, le corps demande le sommeil.
DE
Gegen 3 Uhr verlangt der Körper nach Schlaf.
EN
Around 3 am, the body calls for sleep.
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line 2 0:08
IT
La sonnolenza ha un orario. Il corpo lo conosce.
FR
La somnolence a son heure. Le corps la connaît.
DE
Schläfrigkeit hat ihre Stunde. Der Körper kennt sie.
EN
Sleepiness has a schedule. The body knows it.
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line 3 0:14
IT
Nelle ore prima dell'alba la vigilanza tocca il suo minimo.
FR
Dans les heures qui précèdent l'aube, la vigilance est au plus bas.
DE
In den Stunden vor der Morgendämmerung ist die Wachsamkeit am geringsten.
EN
In the hours before dawn, alertness is at its lowest.
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line 4 0:21
IT
Fermarsi non è perdere tempo.
FR
S'arrêter n'est pas perdre du temps.
DE
Anhalten heisst nicht Zeit verlieren.
EN
Stopping isn't a waste of time.
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line 5 0:28
IT
Una breve pausa. Il modo più semplice di arrivare.
FR
Une courte pause. Le moyen le plus simple d'arriver.
DE
Eine kurze Pause. Der einfachste Weg anzukommen.
EN
A short break is the simplest way to get there.
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line 6 0:35
IT
La sonnolenza si previene. Non si combatte al volante.
FR
La somnolence se prévient. Elle ne se combat pas au volant.
DE
Der Schläfrigkeit beugt man vor. Am Steuer bekämpft man sie nicht.
EN
Prevent sleepiness before you drive. Don't fight it at the wheel.
Transcript
- 0:02 Around 3 am, the body calls for sleep.
- 0:08 Sleepiness has a schedule. The body knows it.
- 0:15 In the hours before dawn, alertness is at its lowest.
- 0:22 Stopping isn't a waste of time.
- 0:28 A short break is the simplest way to get there.
- 0:35 Prevent sleepiness before you drive. Don't fight it at the wheel.
A question about this hour · 03:00
What do you do, or what have you seen others do, when sleepiness sets in on a night drive?
There is no right answer: we are interested in the experience of people who drive, including for work.
The conversations happen on our channels. When there is one about this hour, we will link to it here.
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Online · always open to reports
This episode is online. If something feels off, a word, a figure, a detail in the image, tell us below: two lines are enough. We read everything, and every correction goes into the diary, with its date.
Tell us what you noticed
We read every message. If it becomes a correction, the text changes here on the site and goes into the episode's diary, with its date and its reason. Corrections already made →
Sources
- Wright KP, Hull JT, Czeisler CA. Relationship between alertness, performance, and body temperature in humans. Am J Physiol Regul Integr Comp Physiol 2002;283:R1370-R1377. DOI: 10.1152/ajpregu.00205.2002 laboratory
- Horne JA, Reyner LA. Sleep related vehicle accidents. BMJ 1995;310:565-567. DOI: 10.1136/bmj.310.6979.565 road
- Åkerstedt T, Kecklund G. Age, gender and early morning highway accidents. J Sleep Res 2001;10:105-110. DOI: 10.1046/j.1365-2869.2001.00248.x road
2026-09-06 · Drive Awake