Insomnia is a sleep disorder characterized by difficulty falling asleep, staying asleep, or getting restful sleep. People with insomnia may have symptoms such as: Difficulty falling asleep: People with insomnia may find it difficult to fall asleep, even when they feel tired. Waking up frequently during the night: People with insomnia may wake up several times during the night and have trouble falling back to sleep. Waking up too early: People with insomnia may wake up earlier than they would like, even before they've had a chance to get a full night's sleep. Feeling tired or groggy during the day: People with insomnia may feel tired or groggy during the day, even after they've had a chance to sleep. Difficulty concentrating or paying attention: People with insomnia may find it hard to concentrate or focus on tasks during the day. Insomnia can be caused by a variety of factors, including stress, anxiety, depression, medical conditions, medication side effects, and lifestyle factors such as caffeine and alcohol consumption. Treatment for insomnia typically involves lifestyle changes, such as practicing good sleep hygiene and reducing exposure to electronic devices before bed, as well as therapy and medication as needed. If you are experiencing symptoms of insomnia, it is important to see a doctor for proper evaluation and treatment.