In rural Appalachian Kentucky, nearly two-thirds of adults wake through the night gasping for breath, their minds churning with anxiety, their bodies denied the seven hours of sleep their brains need to function. The REST-KY research project—a collaboration between the University of Kentucky, University of Miami, and University of Arizona—has documented something that residents of these communities have long known: sleep disorders here are not a personal failing, but a symptom of deeper inequities.
The numbers tell a stark story. Among the study participants, 64.9% suffered from clinically significant insomnia, a rate more than six times higher than the 10% national average. This isn't a matter of preference or habit. As Daniela Moga, Ph.D., co-lead on the study at the UK College of Pharmacy, explains, the drivers run far deeper than simple sleeplessness. "There's a significant impact of mental health driving these high rates," Moga said. The research, published recently in JAMA Network Open, reveals that poverty, social isolation, and lack of employment are the true architects of this crisis.
The socioeconomic divide is especially sharp. Among those earning less than $20,000 annually, insomnia rates reached 82.9%—nearly four in five people. For those earning more than $100,000, that figure dropped to 44.4%. Income alone doesn't tell the whole story. The study found that insomnia was significantly more common among women, those living alone, people with a history of cigarette use or trauma, and those with poor diet quality. Sleep, it turns out, is not simply a personal health behavior—it is structured by the social and economic conditions of people's lives.
The sleep crisis extends beyond insomnia. Approximately 51.3% of participants faced an elevated risk of obstructive sleep apnea, compared with a national average of roughly 38%. Another 44.8% reported getting less than seven hours of sleep per night. These conditions often overlap. Older men who smoke, have higher BMI, or take five or more medications simultaneously face compounded risk. Those with weak social support networks—a reality for many isolated in rural communities—struggle most with insufficient sleep.
The mental health dimension compounds the crisis. In the REST-KY cohort, 37.1% of participants suffered from moderate to severe anxiety or depression, and 62.1% reported moderate to high stress. Previous findings from the research team, published in the Journal of Affective Disorders, revealed that greater social support was associated with lower insomnia severity, a relationship mediated by depressive symptoms (69%), anxiety symptoms (64%), and perceived stress (78%). Sleep doesn't exist in isolation; it is woven into the fabric of a person's entire life.
Mairead E. Moloney, Ph.D., the study's lead author at the University of Miami Miller School of Medicine, underscores what these findings mean for policy and practice: until communities address the upstream conditions—poverty, isolation, joblessness—efforts to improve sleep will remain superficial. Emily Slade, Ph.D., at the UK College of Public Health, emphasizes that the study's value lies partly in its focus on a population historically overlooked in sleep research. By looking closely at Appalachia, researchers have illuminated not just a regional health crisis, but a roadmap for supporting better sleep in ways that are rooted in community realities.