Brain Tool · Live

Chronotype Assessment

Discover your biological rhythm — Lion, Bear, Wolf or Dolphin — and learn when your brain naturally prefers to wake, focus, learn, exercise, recover and sleep.

Before you start

20 short questions about sleep, energy and daily preferences.
Takes about 3 minutes. Free, instant, no login required.
Answer based on your natural preference, not your current schedule.

Educational tool. Not a medical diagnosis or sleep-disorder evaluation.