Table 1.

Unstandardized coefficients for the hypothesized models predicting anxiety from day-level and person-average TST and insomnia symptoms.

		Model 1 Objective TST
Fixed Effects	Outcome	Predictor	Est	SE	P
Level 1 (Observation level)	Anxiety	Time-of-day	.502	2.196	.819
		Time-of-day x Day-level TST	.011	.005	.015
		Time-of-day x Person-avg TST	−.003	.006	.640
Level 2 (Day level)		Day-level TST	−.024	.007	.000
Level 3 (Person level)		Intercept	9.972	8.546	.243
		Person-avg TST	.012	.022	.575
		ISI	.877	.260	.001
		MEQ	−.152	.138	.273
		Age	−.225	.113	.047
Variance components
Level 1		Residual variance	114.121	4.933
Level 2		Intercept variance	37.964	7.100
Level 3		Intercept variance	126.814	20.140
		Model 2 Subjective TST
Fixed Effects	Outcome	Predictor	Est	SE	P
Level 1 (Observation level)	Anxiety	Time-of-day	−2.559	2.334	.273
		Time-of-day x Day-level TST	.010	.004	.016
		Time-of-day x Person-avg TST	.005	.005	.372
Level 2 (Day level)		Day-level TST	−.026	.006	.000
Level 3 (Person level)		Intercept	23.606	8.718	.007
		Person-avg TST	−.019	.020	.328
		ISI	.862	.2401	.000
		MEQ	−.147	.124	.234
		Age	−.262	.122	.032
Variance components
Level 1		Residual variance	135.267	5.170
Level 2		Intercept variance	40.152	5.400
Level 3		Intercept variance	146.138	20.169

Note. TST = Total sleep time; ISI = Insomnia Severity Index; MEQ = Morningness-Eveningness Questionnaire