Sleep app grossly wrong, I was reading the news!

This has happened a number of times: I wake up, go downstairs to the kitchen, get breakfast, and start reading the News on my Mac. Later when I check the watch sleep app, it says I was asleep the whole time I was eating and reading! Here’s this morning’s example. I got up around 5:00 (after sleeping rather poorly) … everything after that is bogus.

Anyone else? Is there a fix? Can I submit data for a bug report?