Sleep Fragmentation
Sleep fragmentation is the repeated disruption of normal sleep continuity by brief awakenings or disturbances.
Overview
A person with sleep fragmentation may not fully wake up each time, but the repeated interruptions can reduce sleep quality, impair restoration, and affect memory, mood, and dream recall. Fragmented sleep can result from stress, sleep disorders, environmental disturbance, or physiological conditions. It is important because disrupted sleep can make unusual nocturnal experiences more likely or more memorable.
Key Insight
Sleep quality depends not only on duration, but also on continuity. Frequent interruptions can significantly change sleep experience.
Scientific Status
Sleep fragmentation is a recognised concept in sleep medicine and neuroscience.
How Researchers Study It
Researchers measure it using polysomnography, actigraphy, sleep diaries, and clinical assessment of awakenings and sleep continuity.
Quick Facts
- Field
- sleep medicine, neuroscience
- Related Concepts
- REM sleep, dream recall, sleep hallucination
- Typical Context
- insomnia, disrupted sleep, poor sleep quality
Related Terms
FAQ
Can sleep fragmentation affect dream recall?
Yes. More frequent awakenings can make dreams easier to remember.
Is sleep fragmentation the same as insomnia?
Not exactly. It can be part of insomnia, but it specifically refers to broken sleep continuity.