is it still not possible to change the goal for sleep hours from the set number of 8? This question came up 6 years ago and again 1 year ago. I know it's immaterial, but I don't like seeing some "failures" in the "Sleep Duration Met" graphs, when 7.5 hours (for example) is fine for many people.
We currently do not have plans to add a custom "sleep goal" in Garmin Connect. We apologize for any inconvenience this may cause.
FWIW, you can submit this as a request - Share…
It seems unlikely to me given that, as seilogramp pointed to, 6 year ago they were clearly closed to the idea and AFAIK the body battery concept was not in their products.
Garmin may be resisting this because perhaps it might be too hard to incorporate into to the body battery calculation? Their calculation might not have the flexibility/ capacity to take people’s individuals sleep hours preferences into account 
