Table 11.

Questionnaire list simplified best as 6 items.

Item no.	Questionnaire
ISI 1-a	Rate the current severity of your insomnia problem of difficulty falling asleep
ISI 1-b	Rate the current severity of your insomnia problem of difficulty staying asleep
ISI 3	To what extent do you consider your sleep problem to interfere with your daily functioning?
ISI 5	How worried/distressed are you about your current sleep problem?
ESS 4	How likely are you to doze off or fall sleep as a passenger in a car for an hour without a break
ESS 7	How likely are you to doze off or fall sleep sitting quietly after a lunch without alcohol