TABLE 2.

Preliminary models testing time, weekend, and potential confounding variables of sleep and mood

	Mood		Sleep parameter
	Negative mood	Happiness	Self‐reported sleep minutes	Self‐reported sleep/wake problems	Objective sleep minutes	Objective sleep efficiency
	b (SE), p	b (SE), p	b (SE), p	b (SE), p	b (SE), p	b (SE), p
Model 1
Intercept	1.80 (0.04), p < .001	3.69 (0.04), p < .001	487.83 (6.07), p < .001	12.27 (0.20), p < .001	403.53 (4.48), p < .001	92.97 (0.43), p < .001
Time	−0.01 (0.005), p = .06	0.01 (0.01), p = .32	−4.50 (1.53), p = .004	−0.07 (0.03), p = .054	−1.78 (0.86), p = .038	0.03 (0.07), p = .66
Weekend	−0.07 (0.02), p = .005	0.10 (0.03), p = .002	41.50 (7.12), p < .001	−0.69 (0.16), p < .001	26.66 (4.44), p < .001	−0.63 (0.32), p = .049
Model 2
Intercept	1.76 (0.06), p < .001	3.72 (0.07), p < .001	481.53 (12.61), p < .001	12.21 (0.33), p < .001	394.83 (8.83), p < .001	93.45 (0.75), p < .001
Time	−0.004 (0.01), p = .46	0.01 (0.01), p = .30	−4.48 (1.53), p = .004	−0.02 (0.04), p = .50	−1.34 (0.92), p = .15	−0.03 (0.07), p = .67
Weekend	−0.06 (0.03), p = .013	0.09 (0.03), p = .012	45.75 (7.41), p < .001	−0.72 (0.17), p < .001	29.60 (4.68), p < .001	−0.48 (0.34), p = .16
Sick	−0.01 (0.06), p = .82	−0.14 (0.09), p = .11	1.93 (11.04), p = .86	0.06 (0.32), p = .86	11.43 (11.84), p = .34	−1.43 (0.76), p = .06
Pain	0.16 (0.05), p < .001	−0.12 (0.06), p = .048	−3.12 (8.05), p = .70	0.87 (0.27), p < .001	−0.45 (6.32), p = .94	−1.39 (0.52), p = .008
Slept in Own Bed	−0.01 (0.05), p = .88	−0.01 (0.06), p = .85	6.60 (11.69), p = .57	−0.13 (0.29), p = .65	7.62 (8.23), p = .36	−0.20 (0.67), p = .77

Note: Estimates with robust standard errors reported. Time coded so that actigraphy/diary day 1 = 0. Weekend coded as 1 = weekend and 0 = weekday. Sick, Pain, and Slept in own bed coded as 0 = no and 1 = yes.