That was part of my point, I was not sufficiently convinced that the sampling was conducted over a satisfying number of different living situations. Rest is simply not a luxury that a lot of people can even concern themselves with as they have no concept of leisure time (or at least not an opportunity to enjoy it).

That does not invalidate the statement that being alone may be the key to rest, but it should point out that drawing the conclusions that the article alludes to about the scale of the issue is shoddy.

> [...] showing perhaps what a pressing issue rest is in the modern world.

Even if the concept of "modern" world precludes areas suffering from famine, I am not convinced that it should be considered a pressing issue.