The object of this study is to determine variables associated with therapy-success of a cognitive behavioral self help intervention for insomnia. In this study all participants receive an online self-help CBT manual consisting of information (psycho-education) about sleep and cognitive-behavioural exercises. Adult persons with insomnia will be invited via a popular scientific website to fill out online questionnaires. Participants will be measured 4, 16, and 40 weeks after intervention with the same questionnaires.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
479
The techniques used throughout the self-help manual are all effective in reducing insomnia: 1) Stimulus control: patients should only go to bed when sleepy, use the bed and bedroom for sleep (and sex) only, maintain a regular rising time, avoid daytime naps and get out of bed and go into another room when unable to fall asleep within 15-20 minutes (return only when sleepy). 2) progressive muscle relaxation. 3) sleep hygiene education (improving health and environmental factors that affect sleep). 3). Sleep restriction, whereby participants will stay only the time in bed that they sleep. 4) cognitive therapy to challenge and dispute incorrect and unhelpful thoughts about sleep (e.g. I must sleep at least 8 hours, otherwise I'll be a wreck tomorrow).
Utrecht University
Utrecht, Utrecht, Netherlands
Sleep diary
Daily self-observation used to calculate Total Sleep Time, Wake After Sleep Onset, Sleep Onset Latency, Sleep Efficiency, and Day ratings.
Time frame: baseline
Sleep diary
Daily self-observation used to calculate Total Sleep Time, Wake After Sleep Onset, Sleep Onset Latency, Sleep Efficiency, and Day ratings.
Time frame: 4-week follow-up
Sleep diary
Daily self-observation used to calculate Total Sleep Time, Wake After Sleep Onset, Sleep Onset Latency, Sleep Efficiency, and Day ratings.
Time frame: 18-week follow-up
Sleep diary
Daily self-observation used to calculate Total Sleep Time, Wake After Sleep Onset, Sleep Onset Latency, Sleep Efficiency, and Day ratings.
Time frame: 48-week follow-up
Anxiety
Measured with the HADS
Time frame: Baseline
Anxiety
HADS
Time frame: 4-week follow-up
Anxiety
HADS
Time frame: 18-week follow-up
Anxiety
HADS
Time frame: 48-week follow-up
Depression
CES-D
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Time frame: Baseline
Depression
CES-D
Time frame: 4 week follow-up
Depression
CES-D
Time frame: 18-week follow-up
Depression
CES-D
Time frame: 48-week follow-up
Sleep medication
Sleep medication as measured by the sleep diary
Time frame: Baseline
Sleep medication
Sleep medication as measured by the sleep diary
Time frame: 4-week follow-up
Sleep medication
Sleep medication as measured by the sleep diary
Time frame: 18-week follow-up
Sleep medication
Sleep medication as measured by the sleep diary
Time frame: 48-week follow-up
Insomnia Severity
Insomnia Severity Index
Time frame: Baseline
Insomnia severity
Insomnia Severity Index
Time frame: four-week follow-up
Insomnia severity
Insomnia Severity Index
Time frame: 18-week follow-up
Insomnia severity
Insomnia Severity Index
Time frame: 48-week follow-up