What does insomnia mean? By definition, insomnia is when a person has one or more of the following symptoms: has trouble initiating sleep, staying asleep and/or waking up early than expected and not being able to go back to sleep and feeling tired upon waking.
Some people report having difficulty with one or all of these conditions. According to the Centers for Disease Control and Prevention (CDC), sleep disorders affect one-third of all adults in the United States.
Insomnia can become a chronic problem and may be a symptom of a more serious disease or disorder.