Table 5.

General Linear Mixed Models Examining Cognitive Function and Reports of Waking and Feeling Rested (n = 16,201)

	Model 1				Model 2				Model 3
		95% CI				95% CI				95% CI
	b	Lower	Upper	p Value	b	Lower	Upper	p Value	b	Lower	Upper	p Value
Feeling Rested
Direct effect of difficulty frequency
Never	Reference				Reference				Reference
Sometimes	−0.13	−0.27	0.01	.067	−0.10	−0.23	0.04	.163	−0.09	−0.23	0.05	.196
Most nights	−0.15	−0.34	0.04	.124	−0.12	−0.31	0.07	.222	−0.11	−0.29	0.08	.275
Direct effect of time
2004	Reference				Reference				Reference
2006	−0.09	−0.19	0.01	.088	−0.09	−0.19	0.02	.096	−0.08	−0.18	0.02	.118
2010	−1.00	−1.11	−0.90	.000	−1.00	−1.10	−0.90	.000	−0.95	−1.05	−0.85	.000
2014	−1.65	−1.75	−1.55	.000	−1.66	−1.76	−1.55	.000	−1.55	−1.65	−1.45	.000
Time × Difficulty
2006 × Sometimes	−0.12	−0.31	0.07	.206	−0.13	−0.32	0.06	.190	−0.09	−0.28	0.10	.369
2010 × Sometimes	0.20	0.00	0.39	.046	0.19	0.00	0.38	.051	0.21	0.02	0.40	.032
2014 × Sometimes	0.00	−0.18	0.19	.958	0.01	−0.18	0.19	.939	0.06	−0.13	0.24	.541
2006 × Most nights	−0.14	−0.39	0.11	.264	−0.15	−0.39	0.10	.246	−0.08	−0.33	0.17	.531
2010 × Most nights	−0.02	−0.26	0.23	.896	−0.01	−0.25	0.23	.923	0.04	−0.20	0.28	.750
2014 × Most nights	−0.21	−0.46	0.05	.108	−0.19	−0.44	0.06	.133	−0.12	−0.37	0.13	.344

Notes: Model 1: models include no covariates. Model 2: models include all demographic covariates. Model 3: models include all demographic and health covariates. Bold indicates significance less than .05.