Insomnia

Insomnia is a sleep disorder characterized by difficulty falling asleep, staying asleep, or obtaining restorative sleep despite adequate opportunity, resulting in daytime impairment. It may be short-term (acute) — often linked to stress or a life event — or chronic (at least three nights per week for three months or longer).

Insomnia can occur on its own or alongside other conditions such as anxiety, depression, chronic pain, or sleep apnea. Cognitive behavioral therapy for insomnia (CBT-I) is the recommended first-line treatment for chronic insomnia. Medicines can help in selected situations but are generally preferred for short-term use. Good sleep practices support both prevention and recovery.

Symptoms of insomnia include:

• Difficulty falling asleep at the beginning of the night
• Waking up during the night and having trouble returning to sleep
• Waking up too early and being unable to fall back asleep
• Sleep that feels unrefreshing
• Daytime fatigue, moodiness, or irritability
• Difficulty concentrating or remembering
• Increased errors or accidents
• Ongoing worry about sleep

Chronic insomnia often creates a cycle of anxiety about sleep that further disrupts sleep.

Insomnia often results from a combination of predisposing, precipitating, and perpetuating factors:

• Stress and major life events
• Anxiety and depression
• Poor sleep habits (irregular schedule, screen use in bed, clock-watching)
• Caffeine, alcohol, nicotine, and large late meals
• Medications (certain stimulants, steroids, some antidepressants, decongestants)
• Medical conditions (chronic pain, heart failure, asthma, GERD, hyperthyroidism)
• Other sleep disorders (sleep apnea, restless legs syndrome, circadian rhythm disorders)
• Shift work and jet lag
• Aging-related changes in sleep architecture

Risk is higher in women, older adults, people under chronic stress, those with mental-health or medical conditions, shift workers, and individuals with irregular schedules or high caffeine/alcohol use. A family tendency toward insomnia is sometimes reported.

Chronic insomnia is associated with:

• Lower quality of life and reduced productivity
• Increased risk of depression and anxiety
• Higher risk of accidents (including motor-vehicle crashes)
• Possible contributions to hypertension, obesity, and diabetes risk
• Impaired immune function and greater inflammation in some studies
• Medication dependence if sleeping pills are used long-term without a plan

Sleep-hygiene and lifestyle measures that support healthy sleep:

• Keep a consistent sleep–wake schedule, including weekends
• Create a dark, quiet, cool bedroom; reserve the bed for sleep and intimacy
• Limit caffeine after early afternoon and avoid alcohol as a sleep aid
• Turn off bright screens before bed; use dim light in the evening
• Exercise regularly, but not vigorously right before bed
• Wind down with a relaxing pre-sleep routine
• Address stress with problem-solving, counseling, or relaxation techniques

Diagnosis relies on a careful sleep history, review of medical and psychiatric conditions and medications, and assessment of daytime impact. A sleep diary for 1–2 weeks is often helpful. Screening for depression, anxiety, sleep apnea, and restless legs is important. Formal polysomnography is reserved for suspected sleep apnea or other specific sleep disorders rather than routine insomnia evaluation. Actigraphy may be used in some cases.

See a clinician if insomnia regularly affects daytime function, mood, or safety, or if it lasts longer than a few weeks. Evaluation is especially important when insomnia coexists with loud snoring, witnessed breathing pauses, restless legs, depression, anxiety, or chronic pain. Sudden severe insomnia or insomnia with other neurologic symptoms warrants prompt assessment.

Cognitive behavioral therapy for insomnia (CBT-I) is first-line for chronic insomnia. It includes stimulus control, sleep restriction therapy, cognitive therapy targeting unhelpful beliefs about sleep, relaxation training, and sleep-hygiene education. CBT-I can be delivered in person, in groups, or via validated digital programs.

Medications (when needed):

• Short-term use of benzodiazepine-receptor agonists, dual orexin receptor antagonists, or certain other agents under clinician guidance
• Low-dose sedating antidepressants in selected patients
• Melatonin may help for circadian-related issues; evidence for chronic insomnia is mixed
• Avoid long-term reliance on over-the-counter antihistamines

Treat coexisting conditions (apnea, restless legs, pain, mood disorders). Combine behavioral therapy with medication when appropriate, with a plan to taper drugs.

Core self-management steps:

• Go to bed and wake up at consistent times
• Leave the bedroom if you cannot sleep after about 20 minutes; return only when sleepy
• Limit naps or keep them short and early in the afternoon
• Reduce clock-watching
• Use the bed only for sleep and intimacy
• Practice a wind-down routine and manage evening light exposure
• Follow the CBT-I plan if one has been prescribed
• Avoid starting multiple new sleep aids without medical advice

Bring:

• A 1–2 week sleep diary (bedtime, sleep latency, awakenings, rise time, naps, caffeine/alcohol)
• List of medicines and supplements
• Notes on mood, pain, snoring, or restless legs
• How insomnia affects work, mood, and safety
• Questions about CBT-I access, medication options, and expected timeline for improvement