The New York Times guide covers diagnosis, toll, understanding, recognition, and treatment for sleep apnea.
Witness Apnea: Some people who have sleep apnea only learn about it from their partners. Doctors call this “witness apnea.” “A common reason people get referred is because their bed partner is frightened – not by the snoring, but by the silence in between it,” Dr. Kryger said. “It’s very scary. It indicates that they’re actually stopping breathing. People see it and think, ‘My God, there is something wrong with this person. They’re not breathing.’”
from Sleep Review http://www.sleepreviewmag.com/2019/02/guide-sleep-apnea/