Table 2 Promax rotated matrix of the Lebanese Insomnia Scale items

I am afraid to go to bed because of my disturbed sleep

RIS 8

I think a lot about my sleep

RIS 7

I feel that I have not slept all night

RIS 6

I wake up from the slightest sound

RIS 5

Awaken short of breath or with a headache?

MOS-SS 5

Sleep induction

AIS 2

Awakenings during the night

AIS 1

How long did it usually take for you to fall asleep during the past 4 weeks?

MOS-SS 1

Final awakening earlier than desired

AIS 3

Total sleep duration

AIS 4

During the past month, how often have you had trouble sleeping because you feel too hot

PSQI 5 (g)

During the past month, how often have you hadtrouble sleeping because you feel too cold

PSQI 5 (f)

During the past month, how often have you had trouble sleeping because you have pain

PSQI 5 (i)

Take naps (5 min or longer) during the day?

MOS-SS 11

Snore during your sleep?

MOS-SS 10

Functioning (physical and mental) during the day

AIS 8

On the average, how many hours did you sleep each night during the past 4 weeks?

MOS-SS 2

Get enough sleep to feel rested upon waking in the morning?

MOS-SS 4

Cronbach alpha

Percentage of variances explained