Association between sleep state misperception and bedtime behavior in patients with chronic insomnia
Mizuki Kudo1, Naoko Ayabe2,3, Masahiro Takeshima1
1Department of Neuropsychiatry, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita City, 010-8543, Japan.
Scientific Reports
|June 17, 2024
Summary
Patients with chronic insomnia often misperceive their sleep, underestimating total sleep time. Home-based actigraphy monitoring can reveal sleep habits linked to this sleep state misperception.
Area of Science:
- Sleep Medicine
- Behavioral Science
Background:
- Previous research on sleep state misperception primarily used polysomnography in lab settings.
- Limited data exists on habitual sleep patterns and misperception within home environments.
Purpose of the Study:
- To investigate sleep state misperception in chronic insomnia patients within their home environment.
- To identify sleep habits associated with the severity of sleep state misperception using actigraphy.
Main Methods:
- A 14-day lumbar-worn actigraphy study was conducted.
- Included 31 patients with chronic insomnia and 42 healthy volunteers.
- Subjective sleep assessments via diaries and questionnaires, alongside objective actigraphy data.
Main Results:
- Objective sleep measures were similar between groups; however, insomnia patients reported significantly worse subjective sleep quality.
- A correlation between subjective and objective total sleep time was found in healthy individuals, but not in the insomnia group.
- Insomnia patients exhibited earlier bedtimes, longer time in bed, and underestimated their total sleep time, particularly with earlier bedtimes.
Conclusions:
- Chronic insomnia patients demonstrate significant sleep state misperception in their home environment.
- Underestimation of sleep is linked to specific sleep habits like earlier bedtimes.
- Home-based monitoring of sleep status and habits is crucial for targeted interventions like sleep hygiene and cognitive behavioral therapy for insomnia.
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