T1 (first night)

With pain medication

N = 25

Without pain medication

N = 23

p-value

VSH

Total quality of sleep, average, SD

73.6 ± 18.9

70.3 ± 21.3

0.57

Disturbance of sleep, average, SD

35.4 ± 15.2

38.0 ± 16.1

0.57

Efficacy of sleep, average, SD

16.1 ± 7.6

18.1 ± 8.0

0.39

Need for extra sleep, average, SD

17.0 ± 7.1

19.8 ± 7.1

0.19

ESS

Average, SD

4.6 ± 2.7

4.7 ± 4.3