I feel very seen here, although I have the good fortune of not needing to be nocturnal to make it happen (that’s a strategy I’ve used before, though).

But in trying to draw connections between people and cultures—to describe what we all share, despite our myriad differences—researchers may be papering over variation in even these most elemental traits. Some social needs are probably universal up to a certain age; babies need connection to their caregivers, to have eye contact and touch and warmth. But for adults, needs may be less definitive. “I think there are some people so unusually low in that need that for them it basically doesn’t exist,” DeYoung, the University of Minnesota psychologist, told me. “We should take seriously the possibility that there are people who really don’t need social connection.” Psychologists may be missing those people altogether: If they remain in solitude—if they’re not even awake at the same hours as the rest of us—we might not notice they’re there.

Of note:

Herman, for instance, sees his wife when their schedules happen to overlap, but much of his time at home is spent by himself, watching sports on TV or exercising on his stationary bike while she sleeps. (She’s introverted too, he told me, and their marriage works well because they can function well independently.)

https://www.theatlantic.com/family/archive/2022/02/ultra-introverts-nocturnal-lives/622856/