We currently do not have plans to add a custom "sleep goal" in Garmin Connect. We apologize for any inconvenience this may cause.
+1 to this problem
+1.
This seems like a no brainer to make sleep goal adjustable per the bed time and wake time and overcome the hard wired 8h goal. Go here and make the feature request.
This is discussed here as well:
https://forums.garmin.com/apps-software/mobile-apps-web/f/garmin-connect-web/136571/ability-to-change-sleep-goal-from-8-hours/1113995
Last input: share your ideas: https://www.garmin.com/en-US/forms/ideas/
Share your idea here:
https://www.garmin.com/en-US/forms/ideas/
This topic is discussed since 6 years. :-/
https://forums.garmin.com/apps-software/mobile-apps-web/f/garmin-connect-web/136571/ability-to-change-sleep-goal-from-8-hours/1113995#1113995
Thank you for your research. I found your comment looking to do this very thing. This is not very customer oriented.
Thank you for your research. I found your comment looking to do this very thing. I am writing this in September 2020, three years after your post and no change by Garmin. Not very customer oriented.
Done, thank you from Italy!