Table 1. Summary statistics (Mean and SD) by day for cortisol measures immediately after awakening (0 min), 30 and 45 min later, an aggregate measure of the cortisol awakening response, sleep quality, awakening time and momentary daily life stress and distress aggregated over the day.

Variable	Day 1			Day 2			t-test
	M	SD	Min; Max	M	SD	Min; Max
Cortisol 0 min (nmol/L)	10.4	6.1	2.2; 24.5	8.5	3.9	1.8; 15.7	t(19) = 1.5, p = .15
Cortisol +30 min (nmol/L)	13.4	4.9	5.0; 21.5	13.8	5.1	5.2; 23.1	t(19) = 0.2, p = .86
Cortisol +45 min (nmol/L)	13.5	5.9	6.4; 28.5	13.1	6.3	4.2; 31.1	t(19) = 0.3, p = .30
CAR AUCI	99.0	211.0	−262; 551	153.7	186.9	−128; 660	t(19) = −1.1, p = .29
Sleep quality	5.3	2.8	0; 9	5.6	2.7	0; 9	t(21) = −0.8, p = .43
Awakening time (h since midnight)	7.7	0.9	6.1; 8.6	7.6	0.8	6.1; 8.6	t(21) = 1.1, p = .30
ASQ (stress anticipation)	5.7	0.9	4.4; 7.2	6.7	0.9	4.4; 8.0	t(21) = 0.3, p = .79
Daily life stress (aggregate)	1.9	0.9	0.3; 3.3	2.1	1.3	0.3; 4.7	t(22) = −0.7, p = .51
Momentary distress (aggregate)	2.9	1.3	0.8; 5.6	3.1	1.4	0.7; 5.2	t(22) = −0.5, p = .66

Note. CAR AUCI = cortisol awakening response area under the curve increase; ASQ = Anticipatory Stress Questionnaire.

Difference tests are t-tests for paired samples.