I loved this book! 'Sleep' took a whole new spin on the regular thriller story plot. C L Taylor wrote Anna as such a like-able character, and kept the reader questioning who the villain (murderer!) was throughout by delving into each of their pasts and secrets, with such an intense and unexpected ending! I have read previous C L Taylor novels before and this one definitely didn't disappoint. This would have been a solid 5-stars, had I not thought that the plot was a bit predictable at times; however, this definitely didn't make the read any less suspenseful or enjoyable, and I finished this within a few days of starting. The book included themes of mental health and sleep-deprivation, making this all the more 'real-life-like' and thrilling. Would highly recommend!