Btw: people also invented hammocks (somewhere in South America).
Hammocks are really comfortable, why comparing beds with sleeping on the ground? What's the point?
Maybe to be able to tell something like "primitive people and gorillas know instinctively how to sleep on a hard surface". Really?!
Try by yourself, there is probably not much of a choice, sleeping on the ground is uncomfortable in almost any position but few. Tired enough you will figure out.
Hammocks are really comfortable, why comparing beds with sleeping on the ground? What's the point?
Maybe to be able to tell something like "primitive people and gorillas know instinctively how to sleep on a hard surface". Really?!
Try by yourself, there is probably not much of a choice, sleeping on the ground is uncomfortable in almost any position but few. Tired enough you will figure out.