In an interview with MD Mag, Doghramji, a professor at Thomas Jefferson University, explained the particular burdens of the elderly in avoiding and treating for insomnia.
So, insomnia prevalence seems to increase with age. The overall as prevalence of insomnia as a complaint is very high in the population. Possibly around 40% or 50% of the population has suffered from insomnia at one point or another. And, around a quarter of the population has longer-term insomnia, lasting a month or longer.