Insomnia is a symptom of a sleeping disorder characterized by persistent difficulty falling asleep. Insomniacs have been known to complain about being unable to "rest their mind". Insomnia can be common after the loss of a loved one, even years or decades after the death, if they have not gone through the grieving process. Overall, symptoms and the degree of their severity affect each individual differently depending on their mental health, physical condition, and attitude or personality. An overactive mind or physical pain may also be causes. Poor sleep quality can occur as a result of clinical depression. Wallpaper image and other surrealism art pints