Table 4.

Spearman correlations of ecological momentary assessment variables with previous night’s sleep data.

Ecological momentary assessment (next day)		Sleep onset latency (min)	Sleep efficiency (%)	Wake after sleep onset (min)
Morning (Time 1)
	Mood	.208	−.287	.284
	Fatigue	.258	−.402	.395a
	Sleepy or drowsy	.273	−.404a	.381a
	Perceived thinking abilities	.174	−.327	.304
Midday (Time 2)
	Mood	.262	−.144	.096
	Fatigue	.328	−.358	.347
	Sleepy or drowsy	.257	−.316	.267
	Perceived thinking abilities	.312	−.232	.166
Afternoon (Time 3)
	Mood	.204	−.227	.192
	Fatigue	.372a	−.329	.287
	Sleepy or drowsy	.208	−.228	.163
	Perceived thinking abilities	.255	−.153	.041
Evening (Time 4)
	Mood	.197	−.262	.165
	Fatigue	.229	−.273	.225
	Sleepy or drowsy	.145	−.292	.239
	Perceived thinking abilities	.229	−.133	.054

^aSignificant correlation at P<.01.