Sleep Debt = (Recommended - Actual) x Days
Enter your average hours of sleep per night and your age group. The calculator compares your actual sleep against the recommended amount for your age and shows your accumulated sleep debt along with a practical recovery plan.
Sleep debt (also called sleep deficit) is the cumulative effect of not getting enough sleep over time. If you need 8 hours of sleep but only get 6, you accumulate 2 hours of sleep debt each night. Over a week, that becomes 14 hours of lost sleep, which can significantly impact your health, mood, and cognitive performance.
Research shows that chronic sleep debt increases the risk of obesity, heart disease, diabetes, and weakened immunity. The good news is that short-term sleep debt can be recovered by gradually adding extra sleep over several nights rather than trying to catch up all at once.
Maintain a consistent sleep schedule, even on weekends. Avoid screens 30-60 minutes before bed, keep your bedroom cool and dark, and limit caffeine after noon. If you have accumulated sleep debt, add 1-2 extra hours of sleep per night gradually rather than sleeping excessively on weekends, which can disrupt your circadian rhythm.