While My Sister Sleeps by Barbara Delinsky

The Snow family faces a devastating crisis when oldest daughter Robin, a runner training for the Olympics, suffers a catastrophic heart attack. Molly, Robin’s younger sister, gets the call from the hospital and is immediately guilt-stricken: she was supposed to accompany Robin on her run. When Molly, her older brother, Chris, and her parents, Kathryn and Charlie, gather at the hospital, they learn that Robin is in a coma and might be brain dead. While Kathryn refuses to believe the worst, Molly reaches out to David, the handsome teacher who found Robin after the heart attack, and tries to determine whether Nick, a charming reporter who once dated Robin briefly, is truly concerned about the family or just pursuing a big story. The Snows try to come to grips with the reality that Robin might never wake up, and Molly, attempting to discern what Robin would want, stumbles across Robin’s diaries and learns some startling family secrets... Delinsky’s popularity should ensure demand for this engaging exploration of every family’s worst nightmare. (From Amazon)

Buy the book here ~ While My Sister Sleeps