Books like While My Pretty One Sleeps
Mary Higgins Clark
While My Pretty One Sleeps is 304 pages, about 5 hours 34 minutes at 250 words a minute.
12 books to read next
How long each takes
Déjà Dead 9.3 h 
The Truth About the Harry Quebert Affair 13.2 h 
Inherit the Dead 5.4 h 
The Next Accident 6.2 h 
The House of Gucci 7.7 h 
3Rd Degree 6.4 h 
The Fashion Book 10.1 h 
Kindred in Death 7.6 h 
A Wanted Man 8.2 h 
Personal 8.1 h 
Flashback 10.2 h 
Think of a Number 9.2 h Bar height shows length. Estimated at 250 words a minute.