The study aims to develop and test a user-friendly, accessible approach to sleep assessment which can function as an initial "triage" of targeted sleep conditions, such as insomnia, insufficient sleep syndrome, sleep apnea syndromes/snoring, and circadian sleep/wake disorders, within the clinical and community population. Specifically, this study will test the validity and reliability of a self-rated, digitized, and cost-effective diagnostic measure with sufficient sensitivity to accurately assess/diagnose common sleep conditions and/or risk for these conditions. Such an approach, would allow for faster assessment of common sleep conditions and disorders, and provide clinical knowledge to the individual, the physician, and if required insurance companies, as to those persons who need more immediate attention or treatment for their sleep condition.

Inclusion Criteria:

Patients aged 21-65 years who are referred to the sleep clinic at Carmel Medical Center and who are capable of filling out an electronic questionnaire in Hebrew.

Exclusion Criteria:

1. Patient age <21 years or >65 years.
2. Women who are pregnant or breastfeeding.
3. Nighttime shift-workers.
4. Persons who are unable to provide consent due to mental incapacity.
5. Persons referred for evaluation by Ministry of Transportation (for licensing purposes).

A general community population and clinical population physician-referred for diagnosis and assessment of sleep disorders at a sleep clinic within a large medical center.