Table 2.

Within-person correlations between prior-night sleep and current-day experiences

Variable	Positive affect	Negative affect	Positive work event	Positive non- work event	Work stressors	Non-work stressors	Sleep quality	Sleep duration
Industry 1 replicate (131 IT employees)
Positive affect	0.65
Negative affect	−0.10**	0.42
Positive work event	0.09*	0.08*	0.26
Positive non-work event	0.10**	−0.02	0.17***	0.28
Work stressors	0.06	0.30***	0.11**	0.02	0.22
Non-work stressors	−0.02	0.23***	0.13***	0.06*	0.13***	0.26
Sleep quality	0.13***	−0.17***	0.03	0.05	−0.11*	−0.07*	0.25
Sleep duration	0.10**	−0.10**	0.04	0.06†	−0.13**	−0.002	0.43***	0.32
Industry 2 replicate (181 extended care employees)
Positive affect	0.60
Negative affect	−0.22***	0.42
Positive work event	0.13***	0.05	0.31
Positive non-work event	0.09**	−0.02	0.27***	0.33
Work stressors	0.01	0.24***	0.03	0.04	0.24
Non-work stressors	−0.08*	0.31***	0.06	0.05†	0.12**	0.20
Sleep quality	0.16***	−0.13***	0.21***	0.04	−0.10*	−0.14***	0.33
Sleep duration	0.06+	−0.09**	0.03	0.05†	−0.03	−0.11***	0.45***	0.26

Note.Diagonals (bold) show intraclass correlation coefficients (ICC = between-person level variance/total variance) of the variable. Correlations for IT employees were based on N_days = 862 for affect and non-work events and N_days = 505 for work events. Correlations for extended care employees were based on N_days = 1060 for affect and non-work events and N_days = 410 for work events. Affect was rated on a 1 (none of the time) to 5 (all of the time) scale. Positive events and stressors were coded as yes (1) or no (0). Sleep quality was rated 1 (very badly) to 4 (very well). Sleep duration was reported in hours.

^***p < 0.001,

^**p < 0.01,

^*p < 0.05,

^†p < 0.10