Insomnia is defined as dissatisfaction with quality or quantity of sleep, resulting in clinically significant impairment of social, occupational, or other areas of daily function.
- Difficulty falling asleep, difficulty staying asleep, and unwanted early-morning waking with inability to fall back asleep
Affected populations include:
- 50 to 70 million adults in the U.S.
- 25% of women and 18% of men
Insomnia increases in number with age, as 50% of the elderly reportedly suffer from insomnia
2. Lie, Janette D., et al. “Pharmacological Treatment of Insomnia.” Current Neurology and Neuroscience Reports., U.S. National Library of Medicine, Nov. 2015, www.ncbi.nlm.nih.gov/pmc/articles/PMC4634348/.