Insomnia is a sleep disorder that makes it difficult to fall asleep or stay asleep. It is characterized by difficulty either falling or staying asleep that is accompanied by daytime impairments. Insomnia can mean that you arent sleeping enough, you arent sleeping well, or youre having trouble falling or staying asleep. It can be short-term (acute) or can last a long time (chronic) . Chronic insomnia is when a person experiences sleeping difficulties and related daytime symptoms, like sleepiness and attention issues, at least three days per week for longer than three months. Insomnia can sap not only your energy level and mood but also your health, work performance, and quality of life. Some common symptoms of insomnia include trouble sleeping, waking up too early, and not being able to get back to sleep. Insomnia can result from a range of physical and psychological factors, such as short-term stress, underlying medical conditions, or environmental factors. While it’s impossible to prevent insomnia entirely, there are many things you can do to help yourself sleep better.