The phrase "a comfortable familiarity" is correct and usable in written English.
It can be used to describe a sense of ease and closeness that one feels with a person, place, or situation.
Example: "After years of working together, we developed a comfortable familiarity that made collaboration effortless."
Alternatives: "a cozy familiarity" or "an easy familiarity".
Dino had a comfortable familiarity with small-town rituals and obligations, and he rarely declined when asked to donate his time and expertise to community organizations.
The process looks and feels like a standard Google search, a comfortable familiarity that means you have little new to learn.
It's a style that brings elements from American Universities, or "The Ivy Style", and mixes it with a comfortable familiarity that is at one timeless and modern.
Even the story -- about the arrogant Thor being cast out of his immortal realm to live on Earth as a mortal until he can learn humility -- has a comfortable familiarity to it.
(R01) Over the course of the year, the transition from anxious uncertainty to a comfortable familiarity with different rotational settings, team and supervisory personnel, clinical protocols and role expectations influenced residents' appraisals of their levels of stress and well-being.
It was a specific recipe: comfortable familiarity set against an alien horror.
In postwar Europe and the Middle East, Hilton hotels were quite literally "little Americas". For American businessmen and tourists, a Hilton Hotel with the comfortable familiarity of an English-speaking staff, a restaurant that served cheeseburgers and milkshakes, trans-Atlantic telephone lines, and, most important, air-conditioned modernity offered a respite from the disturbingly alien.
Consumers have reached a level of comfortable familiarity with limited editions; candy makers just have to find new ways to make the idea still seem novel.
The feel of the action is distant from the comfortable familiarity a reader immediately gets from a Grisham legal thriller.
This is because there was a comfortable, visceral familiarity with the app that made me want to spend more time with it.
At the performances I saw, the show unfolded with comfortable familiarity and knowing laughter from a largely black audience that was pleased to see itself credibly rendered onstage.
