TABLE 1.

Parameters of sleep analysis (mean ± SD, n = 10) registered with actimetry during the three sleep conditions [i.e. normal sleep night (NNS), sleep deprivation at the beginning of the night (SDB), and sleep deprivation at the end of the night (SDE)].

Parameters	NNS	SDB	SDE
Start of sleep (h)	23:10 ± 00:32	03:12 ± 00:34	23:15 ± 00:22
End of sleep (h)	07:10 ± 00:42	07:13 ± 00:20	03:13 ± 00:23
Sleep efficiency (%)	90.6 ± 1.4	86.5 ± 1.2*	78.2 ± 1.3*
Sleep latency (min)	41 ± 23	39 ± 20	36 ± 12*
Nocturnal awakening duration (min)	14 ± 2	14 ± 1	14 ± 2

*Significant difference compared to NNS at p < 0.05.