For much of her life, Sparrow Rose Jones was the kind of late riser about whom other people roll their eyes, the kind who goes to bed at dawn and wakes in the midafternoon. As a kid growing up in Louisville, Ky., she had problems at school, in part because she is on the autism spectrum and struggled socially but also because she was always tired. At 16 she dropped out and resigned herself to dead-end night jobs at bars and fast-food joints. The work was menial, but it enabled her to support herself while heeding her natural sleep needs. “I thought, well, my life was sort of working,” she recalls.