KingAn epidemic of insomnia has left America crippled with exhaustion. Thankfully the Slumber Corps agency provides a lifeline, transfusing sleep to sufferers from healthy volunteers.Recruitment manager Trish Edgewater, whose sister Dori was one of the first victims of the disaster, has spent the last seven years enlisting new donors. But when she meets the mysterious Donor Y and Baby A - whose sleep can be universally accepted - her faith in the organisation and in her own motives begins to unravel.