Another often-ignored side effect, however, is the impact sleep apnea has on the snorer's bed partner.
"Couples who struggle with sleep apnea have a high divorce rate," says Cartwright.
A peaceful night of sleep, therefore, may be the secret to a successful marriage.
For one couple in Cartwright's preliminary study, a husband's snoring woke his wife over eight times an hour. This exhausted his wife and caused a lot of tension at home.
"The strain on the marriage was evident, the couple was fighting all the time," says Cartwright.
The husband tried two weeks of at-home treatment for his sleep apnea, consisting of a continuous positive airway pressure (CPAP) machine that blows air through the breathing passage, keeping it open throughout the night. The mask of the CPAP machine is less-than-sexy, but following treatment, the wife's quality of life measure jumped from 1.2 to a 7, and her self-reported sleepiness score dropped from a 12 to a 6. More importantly, marital satisfaction scores increased from a 3 to almost a 6.
Similar results were seen in other couples, as well, and Cartwright is now expanding her research to include more couples in the hopes of proving that sleep apnea treatment can create better marriages.
"It's beautiful to see couples getting along so much better," she says.