Sleep Diary & Bedtime Tracker

Track your bedtime, wake time, naps, and sleep quality. Works fully offline.

Sleep Diary is a simple sleep journal that works fully offline. Log your bedtime, wake time, and how you slept in 30 seconds — including naps and split-sleep sessions.

HOW IT WORKS

• Tap +, set your bed and wake times, rate your night 1 to 5.
• Add nap or short-sleep sessions any time of day.
• Open the Calendar tab to see your weekly pattern.

FEATURES

• Multiple sessions per day (nights, naps, shift work)
• Backfill any past date — no midnight cutoff
• 7 and 30 day averages, bedtime and wake trends
• Sleep factor checklist (caffeine, alcohol, late meals, exercise, stress)
• Dark mode optimized for early mornings
• Morning reminder
• Works fully offline — your data stays on your device
• English and Korean

WHO IT IS FOR

• Anyone keeping a sleep diary before a doctor or therapist visit
• People practicing CBT-I sleep restriction at home
• Shift workers, parents, and anyone with split or napping schedules
• Users who prefer their sleep data to stay on their device

This app does not provide medical advice. Always consult a sleep specialist for diagnosis or treatment.

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