Well Rested Tools

Sleep Tools & Calculators

Our suite of free tools helps you plan your rest around your life. Based on standard sleep cycle research, designed for everyday use.

Sleep Calculator

Find the optimal time to go to bed based on when you need to wake up. Calculations use standard 90-minute sleep cycles.

Accounts for time to fall asleep
Shows cycle counts
Multiple options

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Bedtime Calculator

Know exactly when to get in bed to hit your specific sleep duration target.

Custom sleep duration targets
Includes fall-asleep buffer

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Wake-Up Calculator

Going to bed right now? Find out the best times to set your alarm to avoid waking up mid-cycle.

Works from current time
Avoids sleep inertia
Multiple cycle options

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Plan the perfect nap. Whether you need a quick power nap or a full cycle recovery sleep.

Power naps (10-20m)
Short naps (30m)
Full cycle (90m)

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Sleep Debt Calculator

Track your sleep over the past week to see if you've accumulated sleep debt and how to pay it back.

Weekly tracking
Custom baselines
Actionable recovery tips

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