DSM-IV-TR Diagnostic Criteria for Primary Insomnia
A. The predominant complaint is difficulty initiating or maintaining sleep, or nonrestorative sleep, for at least 1 month.
- The predominant complaint is difficulty initiating sleep
- For the cases, the predominant complaint is difficulty maintaining sleep
- Waking multiple times (waking 3 or more times at night)
- Taking a long time to get back to sleep after awakening at night (30 or more
- Waking too early in the AM (30 or more minutes early)
- The predominant complaint is nonrestorative sleep
- The complaint has lasted at least one month
B. The sleep disturbance (or associated daytime fatigue) causes clinically significant distress or impairment in social, occupational, or other important areas of functioning.
C. The sleep disturbance does not occur exclusively during the course of narcolepsy, breathing-related sleep disorder, circadian rhythm sleep disorder, or parasomnia.
ICD-10 Diagnostic Criteria for Non-Organic Insomnia
A. The complaint is either of difficulty falling asleep or maintaining sleep or of poor quality sleep
B. The sleep disturbance has occurred at least three times per week for at least 1 month
C. There is a preoccupation with the sleeplessness and excessive concern over its consequences at night and during the day
D. The unsatisfactory quantity and/or quality of sleep either causes marked distress or interferes with ordinary activities of daily living
Research Diagnostic Criteria for Insomnia Disorder
A. The individual reports one or more of the following sleep-related complaints: difficulty initiating sleep, difficulty maintaining sleep, waking up too early, or sleep that is chronically non-restorative or poor in quality.
B. The above sleep difficulty occurs despite adequate opportunity and circumstances for sleep.
C. At least one of the following forms of daytime impairment related to the nighttime sleep difficulty is reported by the individual
- Fatigue/ Malaise
- Attention, concentration, or memory impairment
- Social/Vocational dysfunction or poor school performance
- Mood disturbance/Irritability
- Daytime sleepiness
- Motivation/Energy/Initiative reduction
- Proneness for errors/accidents at work or while driving
- Tension headaches, and/or GI symptoms in response to sleep loss
- Concerns or worries about sleep