translation.en: The other thing that's really important about sleep is that it doesn't arise from a single structure within the brain, but is to some extent a network property.
translation.zh: 另外一个关于睡眠的非常重要的事是 它不会从大脑内部的单一的结构产生， 而是在某种程度上由一个网状的结构产生，