> tbh i'm a bit suspicious that there are 5am natural sleepers. being basically nocturnal doesn't sound natural or healthy. and given the proven effects of lack

> tbh i'm a bit suspicious that there are 5am natural sleepers. being basically nocturnal doesn't sound natural or healthy. and given the proven effects of lack of sunlight on mental health that should be fixed regardless of work timing. Humans used to get up twice a night to do things like stoke a fire. A completely different rhythm of sleep to today's. Night vs day wasn't as much of a thing in the past. Assuming that everyone today should sleep just the once doesn't work as soon as you look at South America or Africa, either.