Samsung recently updated S Health with new feature - sleep efficiency based on the same calculation rule as we have in Sleep as android. Hovewer, after export from Sleep as andrioid to S Health, it shows effeciency = 0%.
So it looks like we need new feature / fix for “Sleep efficiency” for S Health.
Screenshot_2020-08-07-20-40-12-50_e940a2b342bdb16663db949e03e5f889|230x500
Same problem here. Because of this can no longer use that feature on Samsung Health.
Same here. Please fix!
Still the same here! 
Hello, many thanks for reporting this issue. There is no way to sync efficiency directly to Samsung health. Samsung should be calculating it from the awake phases we send which is apparently not happening. No sure what we could do on our end about this :(…
