'Riveting, profoundly moving' Emily St. John Mandel, author of Station Eleven

'Beautiful and devastating' Red

'Thought-provoking and profound' Cosmopolitan

Imagine a world where sleep could trap you, for days, for weeks, for months...

She sleeps through sunrise. She sleeps through sunset.

And yet, in those first few hours, the doctors can find nothing else wrong. She looks like an ordinary girl sleeping ordinary sleep.

Karen Thompson Walker's second novel tells the mesmerising story of a town transformed by a mystery illness that locks people in perpetual sleep and triggers extraordinary, life-altering dreams.

One night in an isolated college town in the hills of Southern California, a first-year student stumbles into her room and falls asleep. She sleeps through the morning, into the evening. Her roommate cannot rouse her. Neither can the paramedics, nor the perplexed doctors at the hospital.