polyphasic sleep is completely natural,

多相睡眠是完全自然的
quite common in the animal world, and highly beneficial.

在动物界很普遍也很有用
All right, 6:00's way come and gone.

好了六点早过了
If our guy's killed again,

如果凶手又杀了人
he's not leaving the front door open anymore.

他没有再把门开着了
Or he could just be taking a breather.

或者他可能想缓一缓
I mean, even the unsub has to realize that

他本人肯定也意识到了
he can't keep up this pace indefinitely.

他不可能永远都保持这个节奏
Maybe the last murder completed some sort of cycle.

也许上一次杀戮完成了他某个轮回
A day and night have passed.

一天一夜过去了
The sun rises for the first time in a world without Rod Garrett.

罗德·加雷特死后的第一轮日出
There could also be a more mundane reason.

也可能是更世俗的理由