Insomnia is a common sleep disorder in which a person finds it difficult to fall asleep, stay asleep, or wake up feeling refreshed. It can be caused by stress, anxiety, irregular sleep habits, excessive screen time, medical conditions, or lifestyle factors. People suffering from insomnia may experience daytime tiredness, poor concentration, irritability, headaches, and reduced productivity. Chronic insomnia can affect overall physical and mental health if left untreated. Maintaining good sleep hygiene, reducing stress, regular exercise, and appropriate medical or holistic treatment can help improve sleep quality and restore healthy sleeping patterns.