Table 2 Self reported sleep measures of all study nights collected by SF-A questionnaire for nightmare sufferers (NM) and healthy controls (HC)

Sleep quality

2.63 ± 0.64

3.03 ± 0.81

3.44 ± 0.58

3.49 ± 0.69

3.33 ± 0.60

3.75 ± 0.51

Feeling of being refreshed after sleep

2.49 ± 0.59

3.13 ± 0.83

2.85 ± 0.72

3.20 ± 0.84

2.82 ± 0.61

3.40 ± 0.78

Feeling balanced/relaxed in the evening

3.19 ± 0.70

3.63 ± 0.65

3.36 ± 0.78

3.73 ± 0.57

3.29 ± 0.58

3.93 ± 0.60

Feeling exhausted in the evening

2.98 ± 0.72

2.81 ± 0.78

2.94 ± 0.56

2.94 ± 68

3.06 ± 0.54

2.91 ± 0.74

Psychosomatic symptoms while sleeping

1.79 ± 0.52

1.76 ± 0.49

1.67 ± 0.65

1.68 ± 0.47

1.49 ± 0.47

1.60 ± 0.43