Table 1 Demographic and clinical characteristics of the study population

Age (years), median (min–max)

45 (28–58)

• Men, n = 9

46 (30–57)

• Women, n = 12

41 (28–58)

Insomnia symptoms

 difficulty falling asleep

86%

 difficulty maintaining sleep

67%

 early morning awakening

33%

 non-refreshing sleep

33%

History of hypnotics intake

 benzodiazepines

29%

 Z-drugs

19%

 trazodone

19%

 mirtazapine

9%

 melatonin

9%

 NONE

48%