Cadence

The Four Chronotypes

Your chronotype is your biological clock — the genetic blueprint that determines when you naturally want to sleep, wake, and perform your best. Understanding it is the first step to working with your body instead of against it.

Lion
Early Riser

Lion

The driven early bird — 15% of the population

Natural Wake

5:00 – 6:30 AM

Peak Hours

5:00 – 10:00 AM

Natural Bedtime

9:00 – 10:30 PM

Lions are the high achievers of the chronotype world. They wake before dawn feeling energized and hit peak cognitive performance in the early morning hours. By evening they fade quickly — social events past 9pm feel like a chore. Their biggest risk is burning out by pushing too hard in the morning without adequate rest.

Natural leader Morning exerciser Goal-oriented Fades by 9pm Proactive Low social energy at night

Lions work best with: early morning deep work blocks, exercise before 8am, social commitments before 7pm.

Bear
Solar-Aligned

Bear

The sociable middle ground — 50% of the population

Natural Wake

7:00 – 8:00 AM

Peak Hours

10:00 AM – 2:00 PM

Natural Bedtime

10:30 – 11:30 PM

Bears follow the solar cycle most closely. They represent the majority of the population and are the reason the 9-5 workday was designed the way it is. They're sociable, good-natured, and hit their stride mid-morning. The afternoon slump around 2-3pm is very real for Bears and is a biological certainty, not a caffeine deficiency.

Solar-aligned rhythm Sociable Consistent sleeper Afternoon dip at 2pm Collaborative Mid-morning peak

Bears work best with: morning meetings, deep work 10am–12pm, light work after 3pm, consistent bedtimes.

Wolf
Night Owl

Wolf

The creative night thinker — 15% of the population

Natural Wake

8:00 – 9:30 AM

Peak Hours

7:00 PM – 12:00 AM

Natural Bedtime

12:00 – 1:30 AM

Wolves are the creative night owls who come alive after dark. Their peak cognitive hours are in the evening — they do their best thinking, writing, and problem-solving when the rest of the world is winding down. Forced into 9-5 schedules, Wolves operate in a constant state of social jet lag, which takes a measurable toll on their health over time.

Creative thinker Night energy Introvert-leaning Groggy mornings Risk-taking Impulsive

Wolves work best with: delayed start times, creative work after 5pm, avoiding early morning obligations.

Dolphin
Light Sleeper

Dolphin

The alert insomniac — 10% of the population

Natural Wake

Irregular

Peak Hours

10:00 AM – 2:00 PM

Natural Bedtime

Midnight – 1:00 AM

Dolphins are light, fitful sleepers who rarely feel fully rested. Named after dolphins who sleep with one hemisphere at a time to stay alert to danger, this type tends to be highly intelligent, anxious, and detail-oriented. They struggle with consistent sleep timing and often experience racing thoughts at bedtime. Their best cognitive window is a narrow mid-morning peak.

Detail-oriented Light sleeper High anxiety Intelligent Perfectionist Irregular rhythm

Dolphins work best with: strict sleep hygiene, consistent wind-down routines, avoiding screens 2 hours before bed.

Population Distribution

Lion

15%

Bear

50%

Wolf

15%

Dolphin

10%

Percentages reflect general population estimates. Remaining ~10% fall between types or shift over time.

Rhythm Variation

Biphasic Sleep

The Power Napper — A Natural Ancestral Pattern

Biphasic sleep isn't a separate animal, but a way of structuring your day. Instead of one long 8-hour block, your body prefers a "Siesta" pattern: a slightly shorter night sleep plus a 20–90 minute afternoon nap. This was the standard for much of human history before the industrial revolution.

Which one are you?

Upload your Apple Health data and Cadence will analyze your actual biometric patterns to find your true chronotype.

Discover Your Rhythm →