Plagued by insomnia for twenty years, Marie Darrieussecq turns her attention to the causes, implications and consequences of sleeplessness: a nocturnal suffering that culminates at 4 a.m. and then defines the next day. In Sleepless, she recounts her own experiences alongside those of fellow insomniacs, mostly writers - 'as if writing were not sleeping' - Ovid, Marcel Proust, Virginia Woolf, Marguerite Duras, Franz Kafka, Georges Perec and others. With her inimitable humour, she describes her dealings with a somnologist and her attempts to find a remedy - trying sleeping pills, cannabis, alcohol, bedtime rituals, acupuncture, yoga, hypnosis, psychoanalysis, a gravity blanket and a range of sleep-aid devices. Darrieussecq considers bedrooms, beds, clinophilia ('the tendency to remain in a prone position without sleeping for prolonged periods of time'), her need to be alone in bed, those without beds, the homeless, refugees, trauma and capitalism's role in sleeplessness, our constant wakefulness online, the forest as a hypnagogic zone and how our relationship with animals is connected to our sleep, or lack of it. Ranging between autobiography, clinical observation and criticism, Sleeplessis a graceful, inventive meditation by one of the most daring, inventive novelists writing today.