You can remove it and keep as attachement. Agree UI is big PITAAnd how on earth can I make the attached picture smaller when posting from an iPad?
But the curious thing is that it recorded the bed time correctly, including the time after I switched off the alarm.It's not a bug, well not from the point of view that it's broken. It will think you are awake even though you fell asleep if you turned alarm off. Hopefully in the future they will improve the logarithm that determines sleep vs awake and still. If you plan to sleep later, you want a later alarm or maybe use snooze.
If you watch DC Rainmaker on YouTube he covers this in his comparison with Garmin which was able to detect going back to bed.