Seven questions about nighttime sleep difficulty and its daytime impact during the past two weeks.
Method and research sourcesISI covers difficulty falling asleep, staying asleep, early waking, satisfaction, noticeability, distress, and interference with daytime functioning.
Each of seven responses contributes 0–4 points. The total ranges from 0 to 28 and is compared with four conventional severity ranges.
The original validation, a major psychometric study, and a university-hosted copy are listed below.
Célyne H. Bastien, Annie Vallières, Charles M. Morin
Charles M. Morin, Geneviève Belleville, Lynda Bélanger, Hans Ivers
University of Pennsylvania Center for Sleep and Circadian Neurobiology
Resources are selected by the sleep and stress topics, not by your score.
Why depression can make falling asleep or getting up difficult, how fatigue differs from needing less sleep, and what to discuss with a clinician.
How to notice prolonged overload, distinguish stress from other causes of feeling unwell, and build a realistic plan to reduce demands and find support.
Take the 10-item PSS-10 and reflect on how unpredictable, uncontrollable, and overloaded life felt during the last month.
Reflect on emotional exhaustion, depersonalization, and personal accomplishment in human-service work with the 22-item MBI-HSS.
Answer ten SAS-SV questions about smartphone-related interference, preoccupation, loss of control, and discomfort.
No. It marks a conventional severity range; diagnosis requires a broader assessment.
Rate the overall pattern during the past two weeks rather than only the best or worst night.
Yes. Medicines, pain, breathing problems, mood, schedules, and other conditions can influence sleep and the score.
