		Minutes of sleep	Time to Get to sleep (minutes)	Sleep satisfaction (VAS)	Levels of stress (VAS)	Levels of fatigue (VAS)	Levels of health (VAS)
Levels of stress (VAS)	r	−0.104	0.073	−0.411	1.000	0.774	−0.323
Levels of stress (VAS)	P	0.040	0.146	0.000		0.000	0.000
Levels of fatigue (VAS)	r	−0.115	0.062	−0.429	0.774	1.000	−0.340
Levels of fatigue (VAS)	P	0.022	0.217	0.000	0.000		0.000
PSQI
Subjective sleep quality	r	−0.223	0.268	−0.539	0.393	0.360	−0.412
Subjective sleep quality	P	0.000	0.000	0.000	0.000	0.000	0.000
Sleep latency	r	−0.149	0.835	−0.185	0.044	0.064	−0.153
Sleep latency	P	0.003	0.000	0.000	0.383	0.199	0.002
Sleep duration	r	−0.887	0.191	−0.264	0.067	0.081	−0.139
Sleep duration	P	0.000	0.000	0.000	0.183	0.110	0.006
Habitual sleep efficiency	r	−0.258	0.121	−0.015	0.049	0.036	−0.084
Habitual sleep efficiency	P	0.000	0.019	0.769	0.349	0.487	0.103
Sleep disturbances	r	−0.097	0.328	−0.239	0.183	0.208	−0.217
Sleep disturbances	P	0.054	0.000	0.000	0.000	0.000	0.000
Daytime dysfunction	r	−0.090	0.021	−0.244	0.297	0.269	−0.270
Daytime dysfunction	P	0.073	0.673	0.000	0.000	0.000	0.000
PSQI score	r	−0.519	0.567	−0.442	0.294	0.291	−0.370
PSQI score	P	0.000	0.000	0.000	0.000	0.000	0.000