Table 2 Demographic data and questionnaire-scores

Demographic data

Sample size

n = 30

Male/female

n = 15/n = 15

Age (years)^a

33.70 (10.47)

Age range (years)

19–55

Sleep duration

Habitual sleep duration (hours)^a,b

7.40 (0.95)

Sleeping environment

Bedpartners^c

 Without Bedpartner

n = 15

 With Bedpartner

n = 15

Questionnaire scores

RIS^a

6.50 (3.33)

PSQI^a

 Sleep quality

0.80 (0.41)

 Sleep latency

0.83 (0.87)

 Sleep duration

0.20 (0.41)

 Sleep efficiency

0.33 (0.61)

 Sleep disorders

1.07 (0.25)

 Sleep medication use

0.07 (0.25)

 Daytime sleepiness

0.83 (0.38)

 Overall PSQI-score

4.13 (1.57)