Books like He Sees You When You're Sleeping
Mary Higgins Clark
He Sees You When You're Sleeping is 230 pages, about 4 hours 13 minutes at 250 words a minute.
12 books to read next
How long each takes
61 Hours 8.2 h 
The Watchman 6.3 h 
Killshot 5.9 h 
Gone 7.6 h 
Invincible 5.7 h 
Edge 9.6 h 
Peace with God 4.1 h On the Run 4.6 h 
Sacred Games 16.9 h 
Honeymoon 7.2 h 
No Orchids for Miss Blandish 4.0 h 
Ten Big Ones 6.4 h Bar height shows length. Estimated at 250 words a minute.