Free Tools
Sleep Tools for Better Rest
Free, science-based tools to help you understand and optimize your sleep.
⏰
Sleep Calculator
Find your ideal bedtime based on sleep cycles. Enter when you need to wake up and get optimized bedtime recommendations.
Try it free →📊
Sleep Score Quiz
Take a quick 5-question quiz about your sleep habits and get a personalized sleep score with recommendations.
Take the quiz →💤
Sleep Debt Calculator
Enter your nightly sleep hours and discover how much sleep you owe your body — plus a personalized recovery plan.
Calculate your debt →☕
Caffeine Half-Life Calculator
See how long caffeine stays in your body and find the perfect cutoff time to sleep well tonight.
Check your caffeine →