According to researchers at the National Public Health Institute, those suffering from sleep quality issues are more likely to become dissatisfied with life as they grow older. It appears that lack of adequate sleep or adequate quality of sleep experience a significantly higher rate of dissatisfaction with life as they age. Also, it doesn't appear that those who become dissatisfied with life as they age have a similar correlation to sleep quality. While more research is needed, it's important to realize how essential it is to consistently give your body the rest it needs and strive to obtain sufficient amounts of quality rest and sleep.
Source: American Journal of Epidemiology, January 15, 2009.