To the cargo health differences, there are plenty of studies backing poor health with sleep deprivation. The latest one I came across the other day...
https://www.healthline.com/health-news/a-lack-of-sleep-in-middle-age-can-increase-the-risk-of-dementia
Guess it doesn’t say we will necessarily live less, but maybe just a bit more insane. Tomatoes, potatoes.
Sure wish we had a 6hr sort now.
The non cliff note version: https://www.nature.com/articles/s41467-021-22354-2