: Verify you have enough space on both your iPhone and Watch.
: Some apps are restricted by region; ensure your App Store region matches your payment method.
The actual app, , is widely considered one of the best sleep-tracking tools for Apple Watch because it doesn't require you to manually "start" a session; it tracks everything automatically based on your movement and heart rate. Benefits of the Official AutoSleep App:
: Downloaded IPAs from unofficial sources can contain malware or trackers that compromise your health data and Apple ID.