Chronotype Calculator
Determine your biological sleep chronotype (Lion, Bear, Dolphin, Wolf) based on wake-up and sleep preferences.
Input Parameters
Enter details for calculation.
Primary Chronotype
Expert Tip
Lion (early birds), Bear (solar aligned, standard 9-5), Wolf (night owls), Dolphin (light sleepers, insomniacs). Aligning work with chronotype boosts productivity.
Calculation Methodology & Details
Formula
Matches wake preferences to standard clinical chronotypes described in sleep medicine.
Important Disclaimer
The calculations provided are for educational and general informational purposes only. They do not replace professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider.
How Chronotype is Assessed
Follow these steps to use this calculator:
Select Wake Pattern
Choose the option that describes your un-alarmed sleep cycle.
Read Chronotype
Learn your sleep personality type and ideal schedules.
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ℹ️ About this Calculation
This sleep medicine calculator evaluates sleep architecture, circadian rhythm alignment, daytime sleepiness risk scores, and sleep apnea severity (AHI / STOP-BANG) based on clinical somnology protocols.
Variable Glossary
Sleep Data & Symptoms
Bedtime, wake time, total sleep duration, nocturnal awakenings, or questionnaire symptom scores.
Sleep Metrics
Sleep efficiency percentage, AHI severity tier, REM cycle counts, or sleep debt accumulation.
How to Calculate Step-by-Step
Step 1
Input your sleep times, duration, or answer the clinical assessment questions.
Step 2
Adjust target sleep goals or age-appropriate sleep recommendations.
Step 3
View optimal wake/sleep times, cycle counts, or clinical sleep disorder screening risk.