What is "dayworld"

Dayworld is a trilogy of science fiction novels by Philip José Farmer, inspired by his own acclaimed short story " The Sliced-Crosswise Only-On-Tuesday World". They are set in a dystopian future in which people are allowed to live only one day of the week. For the rest of the six days they are 'stoned,' a kind of suspended animation. The novels focus on a man, Jeff Caird, who is a daybreaker: someone who lives more than one day a week. As the series progresses, the main character seems to be suffering from Dissociative Identity Disorder. The novels comprising the trilogy are:

• Dayworld (1985)
• Dayworld Rebel (1987)
• Dayworld Breakup (1990)

Dayworld is a 1985 science fiction novel by Philip José Farmer.