Insomnia is a sleep disorder characterized by difficulty falling asleep or staying asleep, resulting in an inability to get enough sleep. It is one of the most common sleep disorders and can have a significant impact on quality of life. Symptoms of INSOMNIA include difficulty falling asleep, waking up frequently during the night, waking up too early in the morning, and feeling tired during the day. Treatment for INSOMNIA typically involves lifestyle changes, such as avoiding caffeine and alcohol before bed, and cognitive behavioral therapy.