Chronotype Quiz
Your chronotype is the natural timing preference of your circadian clock. It determines your ideal bedtime, wake time, and peak performance windows. This quiz — based on the validated Munich Chronotype Questionnaire — takes about 3 minutes and gives you a personalized sleep schedule.
Generic sleep advice fails because it assumes everyone's clock runs on the same schedule. It doesn't. Your chronotype — largely determined by genetics — shapes when your body naturally wants to sleep, peak alertness, and perform best. Our quiz identifies your chronotype so you can build a schedule that works with your biology.
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The Four Chronotypes
Based on insights from Dr. Michael Breus (Sleep Doctor) and circadian genetics mapping, most people fall into one of four chronotype categories:
- Lion (Morning type, ~15%) — Natural early risers. Peak performance in the morning. Optimal sleep: 10 PM – 6 AM.
- Bear (Intermediate type, ~55%) — Solar-aligned sleep. Peak performance mid-morning to early afternoon. Optimal sleep: 11 PM – 7 AM.
- Wolf (Evening type, ~25%) — Natural night owls. Peak performance in the evening. Optimal sleep: 12 AM – 8 AM.
- Dolphin (Irregular/light sleeper, ~10%) — Light, irregular sleep. Variable performance peaks. Often associated with anxiety and hyperarousal.
Why Chronotype Matters
Living against your chronotype — working a 9-to-5 schedule when you're a Wolf, for example — creates chronic social jet lag. Research shows that social jet lag of even 1–2 hours is associated with:
- Increased risk of obesity and metabolic syndrome
- Higher rates of depression and anxiety
- Reduced academic and work performance
- Increased cardiovascular disease risk
- Weaker immune response
Frequently Asked Questions
- Is chronotype permanent?
- Mostly, but not entirely. Your chronotype is largely genetic, but it changes with age — teenagers are biologically programmed to be later chronotypes, which is why early school starts are biologically harmful. Adults gradually move earlier with age. Light exposure, consistent sleep timing, and social zeitgebers can shift your expressed chronotype by 1–2 hours in either direction.
- Can I change my chronotype?
- You can shift it modestly — by 1–2 hours — with consistent early morning light exposure, early meal timing, and social anchors. Extreme chronotypes (severe night owls or very early larks) are harder to shift and may have a strong genetic basis. Working with your chronotype, rather than against it, is usually more effective and sustainable.