SleepJournal

Sun Engineering

In-app purchases

About this app

SleepJournal helps you understand your own sleep patterns and build more consistent routines. Log each night, review trends, and see how daily habits may relate to better or worse sleep — privately, without ads or cloud storage.

🛏️ SLEEP LOGGING
Record bedtime, wake time, sleep quality, and how you feel. Add an entry before bed or after waking.

📖 JOURNAL & HISTORY
Review past nights in one place and compare sleep duration, quality, and notes over time.

📊 SLEEP TRENDS
See patterns across weeks and longer periods, including your best and toughest nights.

📝 DAILY FACTORS
Track caffeine, exercise, stress, and screen time alongside your sleep entries.

🌙 PERSONAL INSIGHTS
See observations based on your own journal history to help you notice patterns in your routines.

🔔 BEDTIME ROUTINE
Set target bedtime, wake time, sleep duration, and gentle wind-down reminders.

🔒 PRIVATE BY DESIGN
Your sleep entries and journal data stay on your device. No cloud storage. No ads. No affiliate marketing. No data sales.

📵 OFFLINE AFTER ACTIVATION
After subscription activation, the core sleep-journal functions can be used offline. Google Play services are required for subscription purchase, restore, and subscription management.

💳 SUBSCRIPTION REQUIRED
SleepJournal is subscription-only. Monthly and Annual auto-renewing subscriptions provide the same full app access and differ only in billing period. There is no free tier and no free trial.

What’s new

Initial public release of SleepJournal.

Track your sleep, review journal history and trends, notice patterns in your daily habits, and build more consistent bedtime routines. SleepJournal is private, ad-free, and works offline after subscription activation.