Top ten things I look for in a comfort read.
1. A fantasy world I can get lost in. Examples:
Anne McCaffrey's Dragon Riders and Harper Hall series. I want a fire lizard. Lord of the Rings and The Hobbit. Tony Roberts' Kastania Chronicles and Dark Blade series.
2. Historical Fiction about an interesting time period or location. Barry Saddler, now Tony Roberts' Casca: The Eternal Mercenary series, now up to 56 books. James A. Michener has some great books: The Source, Alaska, Centennial, Texas, Chesapeake, Hawaii, The Drifters. I tried to read all his books but gave up as that's all I would read for the rest of my life.
3. A particular author. Harlan Ellison, Isaac Asimov, James A. Michener, Tony Roberts, Heinlein, Frank Herbert, Anne Rice, Mary Stewart, Anne McCaffrey, Colleen McCullagh.
4. Writer friends: Dr. Irene Blea who has a book about the seven women found dead on the mesa: Daughters of the West Mesa, a series about her aunt's life: Suzanna, Poor People's Flowers, Beneath the Super Moon, Hank Bruce, who writes about gardening and has a children's book about the Maringa Tree, Jonathan Miller, an Attorney in town that writes legal thrillers, Paul Paul, a local writer with a wide range of topics. The Mind of a Deviant Woman is my favorite, and a good blogger friend that I have linked to many times who also writes in the horror and science fiction genres, Berthold Gambrel.
I think I've dropped enough names and titles to satisfy the question.