Chronotype / Habit↕ | Typical Sleep Time↕ | Peak Productivity↕ | % of Population↕ | Famous Example↕ |
|---|---|---|---|---|
Lion (Early Bird Extreme) | 9pm–5am | 6am–12pm | 15-20% | Tim Cook (3:45am), Apple CEO, answers emails at 4am, gym by 5am |
Bear (Average) | 11pm–7am | 10am–2pm | 50-55% | Most people, follows the solar cycle, productive mid-morning, post-lunch dip |
Wolf (Night Owl) | 1am–9am | 5pm–12am | 15-20% | Barack Obama (reads until 2am), creative types, forced into 9-5 misery |
Dolphin (Light Sleeper) | 11:30pm–6:30am (interrupted) | 10am–12pm, then 4-6pm | 10% | Anxious sleepers, half-brain-awake pattern, often struggle with insomnia |
Biphasic Sleeper | 12am–6am + 2pm nap | 9am–1pm, 3pm–7pm | Common in Mediterranean | Spanish siesta culture, Winston Churchill napped daily, NASA found 26-min naps boost performance 34% |
Polyphasic (Uberman) | 6x 20-min naps across 24hrs | Supposedly always (2 hours total sleep) | <0.1% (extreme biohackers) | Leonardo da Vinci allegedly did this, Silicon Valley experimenters, most people crash within weeks |
5am Club | 9:30pm–5am | 5am–8am (golden hours) | Growing movement | Robin Sharma's book, Jocko Willink (4:30am), the hustle culture alarm clock |
Teenager Pattern | 1am–10am | 11am–1pm, 7pm–11pm | Biological (puberty shift) | Schools start too early for teen biology, melatonin shifts 2hrs later in puberty |
Shift Worker | Rotating/broken | Varies by shift | 15-20% of workforce | Nurses, factory workers, 24/7 economy, WHO classifies night shifts as 'probably carcinogenic' |
Social Jet Lag | Weekday: 12am–6:30am, Weekend: 2am–11am | Mid-morning on good days | ~70% of people | The Monday zombie phenomenon, 2+ hour sleep schedule difference between work and free days |
Free to explore · No signup needed
Related Datasets
More in Health
Sleep Disorders
15 sleep disorders categorized by type (insomnia, parasomnia, movement, breathing, circadian) with prevalence, symptoms, treatment, and affected age group.
Common Allergies
20 common allergies across food, environmental, drug, insect, and skin categories with prevalence, symptoms, treatment, and severity potential.
Exercise Types
25 exercise types across cardio, strength, flexibility, balance, and HIIT categories with muscles targeted, calorie burn, equipment needs, and difficulty.
Diets & Eating Philosophies
Keto, veganism, Mediterranean, carnivore — the never-ending diet wars that fuel the internet's hottest takes.
Popular Health Supplements
Creatine, Vitamin D, Omega-3 — the supplements everyone argues about at the gym and in Reddit threads.
Vitamins and Minerals
20 essential vitamins and minerals with recommended daily values, primary functions, top food sources, and deficiency symptoms.