Sleep & Circadian Tools
Master your rhythm. Sleep smarter, not just longer.
Sleep Cycle Calculator
Calculate the perfect time to fall asleep to wake up refreshed.
Sleep Bedtime Calculator
Know when to wake up based on when you go to bed.
Nap Power Calculator
20 mins or 90 mins? Find the ideal nap length to avoid grogginess.
Sleep Debt Calculator
Track your accumulated sleep deficit and plan your recovery.
Sleep Chronotype Calculator
Are you a Bear, Wolf, Lion, or Dolphin? (Basic Estimator)
Sleep Jet Lag Calculator
Plan your sleep schedule shift before you travel.