SCI Normative Values

The Sleep Condition Indicator (SCI) is a brief 8-item scale which measures sleep problems against the DSM-5 criteria for insomnia disorder. The SCI is valid, reliable and sensitive to change (Espie et al, 2014, Luik et al, 2017). Completing the SCI on this page allows for comparison with a group of individuals matched on sex and age.

Thinking about a typical night in the last month...

...how long does it take you to fall asleep?
...if you then wake up during the night, how long are you awake for in total? (add all the wakenings up)
...how many nights a week do you have a problem with your sleep?
...how would you rate your sleep quality?

Thinking about the past month, to what extent has poor sleep...

...affected your mood, energy, or relationships?
...affected your concentration, productivity, or ability to stay awake?
...troubled you in general?

Finally...

...how long have you had a problem with your sleep?
What year were you born?
Are you male or female?