(insomnia) A sleep disorder characterized by difficulty in falling asleep and/or remaining asleep.

(insomnia) Difficulty in falling asleep and/or remaining asleep.

(insomnia) Difficulty in falling asleep or difficulty in staying asleep. It can be related to a mental disorder, can be related to a physical disorder or an adverse effect of medication, or can be primary (not related to a known medical factor or another mental disorder). See also initial insomnia, middle insomnia and terminal insomnia.

(insomnia) Difficulty in going to sleep or getting enough sleep.

(insomnia) Persistent difficulty initiating or maintaining sleep.

(insomnia) The inability to fall asleep or remain asleep long enough to feel rested.

(insomnia) Insomnia is a common sleep disorder. If you have it, you may have trouble falling asleep, staying asleep, or both. As a result, you may get too little sleep or have poor-quality sleep. You may not feel refreshed when you wake up. Insomnia can be acute (short-term) or chronic (ongoing). Acute insomnia is common. Common causes include stress at work, family pressures, or a traumatic event. It usually lasts for days or weeks. Chronic insomnia lasts for a month or longer. Most cases of chronic insomnia are secondary. This means they are the symptom or side effect of some other problem, such as certain medical conditions, medicines, and other sleep disorders. Substances such as caffeine, tobacco, and alcohol can also be a cause. Sometimes chronic insomnia is the primary problem. This means that it is not caused by something else. Its cause is not well understood, but long-lasting stress, emotional upset, travel and shift work can be factors. Primary insomnia usually lasts more than one month. Insomnia is common. It affects women more often than men. You can get it at any age, but older adults are more likely to have it. You are also at higher risk of insomnia if you: Have a lot of stress; Are depressed or have other emotional distress, such as divorce or death of a spouse; Have a lower income; Work at night or have frequent major shifts in your work hours; Travel long distances with time changes; Have an inactive lifestyle; Are African American; research shows that African Americans take longer to fall asleep, don't sleep as well, and have more sleep-related breathing problems than whites. Symptoms of insomnia include: Lying awake for a long time before you fall asleep; Sleeping for only short periods; Being awake for much of the night; Feeling as if you haven't slept at all; Waking up too early. Insomnia can cause daytime sleepiness and a lack of energy. It also can make you feel anxious, depressed, or irritable. You may have trouble focusing on tasks, paying attention, learning, and remembering. Insomnia also can cause other serious problems. For example, it could make you may feel drowsy while driving. This could cause you get into a car accident. To diagnose insomnia, your health care provider: Takes your medical history; Asks for your sleep history. Your provider will ask you for details about your sleep habits.; Does a physical exam, to rule out other medical problems that might cause insomnia; May recommend a sleep study. A sleep study measures how well you sleep and how your body responds to sleep problems. Treatments include lifestyle changes, counseling, and medicines: Lifestyle changes, including good sleep habits, often help relieve acute (short-term) insomnia. These changes might make it easier for you to fall asleep and stay asleep.; A type of counseling called cognitive-behavioral therapy (CBT) can help relieve the anxiety linked to chronic (ongoing) insomnia; Several medicines also can help relieve your insomnia and allow you to re-establish a regular sleep schedule. If your insomnia is the symptom or side effect of another problem, it's important to treat that problem (if possible). NIH: National Heart, Lung, and Blood Institute

(insomnia) A disorder characterized by difficulty in falling asleep and/or remaining asleep.

Insomnia is defined as repeated difficulty with sleep initiation, maintenance, consolidation, or quality that occurs despite adequate time and opportunity for sleep and that results in some form of daytime impairment. As many as 95% of Americans have reported an episode of insomnia at some point during their lives.

Insomnia is a common sleep disorder that can make it hard to fall asleep, hard to stay asleep, or cause you to wake up too early and not be able to get back to sleep. You may still feel tired when you wake up. Insomnia can sap not only your energy level and mood but also your health, work performance and quality of life.

As per the Diagnostic and Statistical Manual of Mental Disorders, 5th edition (DSM-5), insomnia is defined as difficulty initiating or maintaining sleep, or early-morning awakening that leads to dissatisfaction with sleep quantity or quality. The resulting sleep disturbance leads to impairment in social, occupational, educational,...

Insomnia, the inability to sleep adequately. Causes may include poor sleeping conditions, circulatory or brain disorders, a respiratory disorder known as apnea, stress, or other physical or mental disorders. Insomnia is not harmful if it is only occasional; the body is readily restored by a few...