Sleep Tools

Interactive Sleep Tools

Interactive calculators, trackers, diary pages, and quizzes that help visitors plan bedtimes, wake-up times, naps, sleep debt, and sleep patterns.

Start with a calculator, tracker, diary, or quiz when you want a practical next step instead of another article to read.

Sleep Calculator

Calculate suggested bedtimes from your wake-up time using estimated sleep cycles and the time you usually need to fall asleep.

Calculate a realistic bedtime from your wake-up time, target sleep duration, wind-down period, and estimated time to fall asleep.

Enter your bedtime to calculate several possible wake-up times based on estimated 90-minute sleep cycles.

Compare your nightly sleep need with your recent average and estimate the total sleep debt accumulated over seven nights.

Calculate estimated bedtimes or wake-up times from the number of sleep cycles you want and your expected sleep latency.

Choose a nap length and calculate an alarm time that includes how long you normally need to fall asleep.

Answer eight questions to explore whether your natural sleep timing shows a morning, evening, or intermediate tendency.

Use a private seven-night sleep diary to record bedtime, wake time, awakenings, restfulness, and notes, then print your entries.

Track nightly sleep duration and quality in your browser, review recent entries, and calculate your average sleep over time.

Create an educational sleep score based on duration, nighttime wakefulness, restfulness, schedule consistency, and alertness.