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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.