WakeSharp · Free Tools

Free Tools

Five free tools to plan your sleep and wake-up routine. No account required. Your inputs stay in this browser.

Sleep Calculator

Find bedtime or wake-up time from your sleep target. Compare seven, eight and nine hours with an adjustable time to fall asleep.

Set a free alarm in your browser, test the sound, and see the countdown. Keep the page open and your device awake for it to ring.

Start a 10, 20 or 30 minute nap timer, or choose your own duration. Preview the sound and keep your device awake while you rest.

Compare seven nights of sleep with your personal target. See total shortfall, average sleep and variation without a recovery promise.

Estimate caffeine remaining at bedtime using dose, timing and half-life. Explore earlier consumption without a guaranteed safe cutoff.

Available on the App Store and Google Play