List each sleep session as a start and end time to see total sleep, the number of night wakings and how regular the pattern is. Everything stays in your browser and can be exported as CSV. This is an approximate reference, not medical advice; for any health concern or emergency, contact your pediatrician or emergency services, and follow WHO, CDC or your local health authority guidance.
All processing runs locally in your browser. Your data is not uploaded to any server.
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How to Use the Sleep Log
Write each sleep session on its own line as a start and end time, then press Summarise. Use Download CSV to save the sessions.
Reading the result
A session that crosses midnight, such as 20:00-06:30, is counted correctly.
Total sleep adds up every session you list.
Night sessions are those starting between 7pm and 6am; wakings are the extra night sessions.
Regularity compares the start times of your sessions.
Features
Handles overnight sessions and multiple naps
Total sleep, average session, night wakings and regularity
CSV export of every session
This is an approximate reference, not medical advice; for any health concern or emergency, contact your pediatrician or emergency services, and follow WHO, CDC or your local health authority guidance.
All processing runs locally in your browser. Your data is not uploaded to any server.
Track a few days in a row to see a real pattern. Bring your log to appointments; it can help your pediatrician understand your baby's sleep.