Insomnia refers to difficulty falling asleep, staying asleep, or getting restful sleep. This page explains likely causes, common signs, everyday measures that may help sleep quality, and when to consider professional assessment.
Insomnia often reflects several interacting factors rather than a single cause. Stress and anxiety, shift work or irregular schedules, caffeine or alcohol close to bedtime, chronic pain or other long-term health issues, and an unsuitable sleep environment are frequent contributors. Psychiatric conditions and hormonal changes can also disrupt sleep patterns.
People with insomnia may have trouble falling asleep, wake frequently at night, or wake unrefreshed in the morning. Daytime effects can include reduced concentration, lower energy, mood changes and decreased performance at work or school. If sleep difficulties persist and noticeably affect daily functioning, evaluation is advised.
Sleep hygiene covers behaviors and environmental adjustments that can support sleep. Aim for consistent bed and wake times, make the bedroom cool, dark and quiet, avoid using the bed for wakeful activities, reduce screen time before bed and limit late caffeine or nicotine. These measures are general guidance and may not resolve persistent problems.
Consider seeing a healthcare professional if sleep problems last several weeks, significantly interfere with daytime functioning or safety (for example, causing drowsiness while driving), or if you notice symptoms that may indicate another condition—such as repeated pauses in breathing during sleep, severe chest pain, fainting-like episodes or marked shortness of breath. Clinicians can assess possible causes and refer to sleep medicine, neurology or psychiatry services when appropriate.
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