Say I want to include sleep data manually for a day last week or yesterday, when I didn't wear the watch overnight. What happens is::::::::: Press three dots to edit on chosen sleep day page.... Input sleep times....save....backout....NO change,still no data is displayed. Try again and the data is already input from last edit, so just save...back out.....same result...no sleep data for any previous day can be saved. This is highly inconvenient, and hope the issue can be resolved quickly, as I dont like to wear the watch overnite,I like to let my skin recover :-)
In previous versions of GCM for at least 1 year, if the sleep and wake times were both logged before midnight (e.g., sleep 5pm, wake 10pm), I could not correct the sleep times on the Mobile app, but COULD correct it on the web version of Garmin Connect. After correcting on the web version, the correct times would show up on GCM after a watch sync.
Interestingly, if the sleep session registered start of sleep before midnight and wake up after midnight, then I could correct the sleep times on the Mobile app without having to go to the web portal.
With the most recent GCM app update, there is no way to change the sleep and wake times in either the mobile app or web portal.