When I bought my 255, it didn't record naps. But after a firmware update it thinks I'm taking a nap when watching a movie, sitting in a lecture hall, writing a paper, reading a book... and then it has the nerve to tell me I shouldn't be napping so much.
This "feature" is annoying, erratic, unwanted, and it doesn't come with an off switch.
Worse yet, deleting all those bogus naps only works occasionally for recent naps, and not at all for older wrongly recorded naps. I can't even delete yesterday's false positives! The Garmin app simply ignores my swipes on the naps!
How can I get rid of this annoying bug-disguised-as-feature without setting my usual sleep times from 00:00 to 23:59 (which would mess up my watch's notifications)?