Marius ComperStay-Awake Brain

Public education, not medical advice; for persistent insomnia or daytime sleepiness, see a doctor.

This tool never learns “you”; it only repeats group-trial results: group averages, no individual calibration.

PVT: 3-minute reaction-time distribution (no-reading build)

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Psychomotor vigilance task, 3 minutes

Tap when the stimulus appears, never before. 180 seconds, random 2–10 second gaps. Results show the reaction-time distribution only (trials, mean, median, lapses, false starts, range): a no-reading build — the reading copy is under review, and this build never interprets sleep need. Early taps count separately as false starts. Timeouts count as missing.

Press start, then tap each stimulus.
If you can't keep your eyes open, don't drive; pull over and rest.