Common sleep disorders like insomnia, restless legs syndrome, narcolepsy and sleep apnea can affect every aspect of your life including your safety, relationships, school and work performance, thinking, mental health, weight and the development of diabetes and heart disease. Not getting enough quality sleep can hurt your quality of life. Sleep disorders are conditions that result in changes in the way that you sleep.A sleep disorder can affect your overall health, safety and quality of life. Sleep deprivation can affect your ability to drive safely and increase your risk of other health problems.