Why am I awake?
In general, I prefer being asleep at night to being awake. So what am I doing? It’s 1:30am: what exactly do I like about being awake at night? For I’ve been staying up well past midnight at least once a week these days.—But I think the answer is this: it’s the only time I’m guaranteed solitude without going out of my way to ﬁnd it. It’s easy enough to ﬁnd a place without anyone I know around; it’s harder to ﬁnd a place without people at all. And then further a place that is comfortable, that one knows and knows how to inhabit:—one’s own home at night. (—I.e. after everyone else who’s halfway sane has gone to bed!).
(—That’s a plausible explanation, but it may not be true. The problem of why I do things remains, in general, unsolved, and is the subject of ongoing research.)