Oura's Crown Icon Explained
If your Sleep, Activity, or Readiness Score meets or exceeds 85 on a given day, that day will be marked with a Crown icon. If you receive two 85's and an 83, for example, you will receive two crowns.
View a calendar of days where you’ve achieved crowns by tapping Today at the top of the Oura Home tab. An example of that calendar can be found below.