The main antagonist, a Sleepless woman with strong opinions on the separation between Sleepless and Sleepers. Her leadership decisions in the Sanctuary space station drive much of the narrative conflict.

Jennifer Sharifi’s granddaughter and a genetically modified “Supersleepless.” She plays a crucial role in opposing the leadership of the Sanctuary and developing new ways of thinking.

Leisha Camden’s non-genetically modified twin sister, with whom she has a complex relationship. Alice's involvement with Leisha offers a contrasting perspective on familial bonds and the effects of genetic modification.

An artist known for using poetry and holographic projections. His innovations in inducing lucid dreaming contribute significantly to the narrative, and he is intertwined with several other characters.

An influential figure in the anti-Sleepless movement and owner of a factory. Known for his antagonistic stance toward the Sleepless, he plays a key role in exacerbating tensions between groups.

One of the first generation of Sleepless, who has a significant impact on the early development of the Sleepless community. His coined term "Beggars in Spain" echoes throughout the book.

A geneticist and the creator of the Sleepless modification. Her interactions with the Camden family offer insights into genetic ethics and personal aspirations.

A first-generation Sleepless who has connections with several key characters, including Leisha and Jennifer. His life choices and relationships reflect the complexities of the Sleepless versus Sleeper conflict.

Alice Camden’s son who works as a personal assistant in the We-Sleep Movement. His professional journey reveals underlying themes of economic inequality and personal growth.