Improve general user interactions
Selecting a different mode is not in a great location. Often when swiping up, control centre is inadvertently activated. There is plenty of room at the bottom of the home screen to place a small icon for naps, and perhaps an icon for graphs, which would replace the swipe left, which often brings the calendar over.
When selecting a sleep mode, rather than having to scroll through each mode, a pop up menu would be much easier.
Thank you for your feedback. We are working on a redesign that will address many of those issues you mention.