Chronotype · Lark or Owl

Morning lark or night owl?

A 10-question chronotype screening that places you on the morning-to-evening spectrum. Discover whether you are a lark, an owl, or somewhere in between, and why it shapes your energy, focus and sleep. Free, about 4 minutes, instant result.

⏱ 4 min ❓ 10 questions ✓ 100% Free
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🔒 No sign-up · Instant results · Science-based · Secure payment
🔬 Chronotype Test - Morning Lark or Night Owl (CHR-10)
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⚠️ Disclaimer: This is an educational self-assessment, not a clinical sleep diagnosis. Chronotype shifts with age and habits. For ongoing sleep problems, consult a doctor or sleep specialist.
Claude AI
AI Interpretation powered by Claude (Anthropic)
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Your results are analyzed by Claude, Anthropic's AI model, which provides a personalized narrative explaining what your answers reveal about your profile, with practical recommendations and professional guidance.

📋 What to expect

Answer honestly There are no right or wrong answers
Take your time Read each question carefully before answering
AI interpretation Claude AI will analyze and explain your results
PDF Report Get a full PDF report of your results

What is a chronotype?

Your chronotype is your natural tendency to be more of a morning person (lark) or an evening person (owl). It stems from your internal body clock, partly genetic, and determines when you are most alert, when you feel hungry and when you get sleepy. Most people sit somewhere between the two extremes.

Chronotype, ADHD and sleep

Many people with ADHD have an evening-shifted chronotype, with late sleep onset and tough mornings. Living against your internal clock (waking early when you are an owl) builds chronic sleep debt that worsens focus, mood and impulsivity. Knowing your chronotype helps you organize your days more wisely.

About this chronotype test

This test places you on the morning-to-evening spectrum across 10 questions and 5 levels, from definite owl to definite lark. Free and instant, it helps you align your most demanding work with your natural energy peaks. It is a guidance tool, not a sleep diagnosis.