AutoSleep. 
Health Check. 

Problem 9. 

Either you have not been wearing your Apple Watch, or there is a problem with health data not being sent from your Watch to your iPhone, or AutoSleep does not have permission to read your health data. 

If you genuinely haven't been wearing the Watch, just put the Watch on making sure that you have entered your passcode. The error will go away once the Watch has collected data for 5% of the day. 

Otherwise, first check the following: 

Common Reasons for No Data Synch

1. Is bluetooth turned on? Some people accidentally turn it off. It’s easy to do. 

2. Are either of the devices in flight mode?

3. Did the Watch go into low power mode (< 10% battery)? 

4. Do you have a passcode on your Watch and have you entered it? This is required for background heart rate data. 

5. In Passcode in the Apple Watch settings app have you turned on Wrist Detection? This is required for background heart rate. 

6. In Privacy in the Apple Watch settings app, both Heart Rate & Fitness Tracking need to be turned on. 

7. Do you have a prominent wrist tattoo?



If all the above are ok then: 

This is sometimes due to the iOS / WatchOS update not correctly starting Apple Health services. 

Often you can solve problems like this by powering the iPhone and Watch off and on as per these links. i.e. Shut down completely and restart. 

iPhone: https://support.apple.com/en-au/HT201559

Watch: https://support.apple.com/en-au/HT204510



If that doesn’t resolve it, then either you did not grant permission for AutoSleep to read your health data, or this is due to a bug that was in the iOS update process that removes health permissions for apps. It doesn’t affect everyone, but does happen from time to time. 

Here’s how to fix it.

Reset Permissions

To reset HealthKit permissions and iOS and Watch health services and ensure everything works on the watch going forward, please perform these 7 steps. It is important to do all steps in this exact order especially steps 3 & 4 as this restarts the crashed system services on your iPhone and Watch. 

1. Remove the app from your Apple Watch by going into the Apple “Watch” app, on your iPhone scroll down until you find AutoSleep and then remove it. 

2. Go into the the Apple Health app (white icon, red heart), press sources, press AutoSleep and then press all categories off.

3. Power the iPhone off as per this link.  (i.e. Shut the iPhone down completely so that it restarts with the  on screen). 

https://support.apple.com/en-au/HT201559

4. Power the Watch off and on as per this link. 

https://support.apple.com/en-au/HT204510

5. Now in the Apple Health app in sources, AutoSleep press all categories on. Make sure that all the switches are turned on. 

6. Now go into AutoSleep iPhone app and this should restore all permissions

7. Wait 5 minutes and then Install the watch app (using the Apple “Watch” app if required.