How regular is your sleep?
Your sleep score probably measures duration. Regularity — the same bedtime and wake time every day — is the metric research keeps linking to long-term health. Get your Sleep Regularity Index (0–100) from your Apple Health export or a quick diary. Files are processed in memory and deleted; nothing is stored.
Drop your Apple Health
iPhone → Health → profile picture → Export All Health Data. Also accepts
export.zip hereiPhone → Health → profile picture → Export All Health Data. Also accepts
export.xml or a diary .csv.
…or enter your last nights — evening date, when you fell asleep, when you woke up. Seven nights give a real score; five is the minimum.
Wake time earlier than bedtime means the next morning.