Insomnia can be categorized as either acute or chronic.
- Acute insomnia is typically short-term and can last from one night to a few weeks, often in response to a specific event or stressor.
- Chronic insomnia lasts for months or even years and is usually a result of underlying physical or psychological conditions.
There are several types of insomnia, including:
- Onset insomnia - difficulty falling asleep
- Maintenance insomnia - difficulty staying asleep
- Terminal insomnia - early morning awakening