Table 3.

The effects of napping on the diurnal cortisol pattern.

	Reference Condition
	No-Nap-P		Morning Nap-E		Afternoon Nap-P
	B	SE	B	SE	B	SE
Intercept	9.22	0.82	9.95	1.04	8.09	0.84
Morning nap-E	0.73	0.96	--	--	1.86	1.13
Afternoon nap-P	−1.13	1.02	−1.86	1.13	--	--
Afternoon nap- E	0.44	1.06	−0.29	1.12	1.57	0.60
No-Nap-P	--	--	−0.73	0.96	1.13	0.02
Morning decline	−2.19***	0.37	−2.72***	0.42	−2.15***	0.36
Morning nap-E	−0.53	0.45	--	--	−0.57	0.52
Afternoon nap-P	0.04	0.36	0.57	0.52	--	--
Afternoon nap-E	−0.21	0.40	0.32	0.50	−0.26	0.29
No-Nap-P	--	--	0.53	0.45	−0.04	0.36
Noon decline	−0.27***	0.07	−0.06	0.16	−0.19*	0.09
Morning nap-E	0.21	0.17	--	--	0.12	0.16
Afternoon nap-P	0.09	0.10	−0.12	0.16	--	--
Afternoon nap-E	−0.08	0.09	−0.29	0.16	−0.17	0.11
No-Nap-P	--	--	−0.21	0.17	−0.09	0.10
Nap-awakening rise	−0.17	0.49	7.32***	1.54	3.24***	0.76
Morning nap-E	7.50***	1.64	--	--	4.08*	1.70
Afternoon nap-P	3.41***	0.84	−4.08*	1.70	--	--
Afternoon nap-E	0.89	0.50	−6.61***	1.52	−2.53**	0.77
No-Nap-P	--	--	−7.50***	1.64	−3.41***	0.84
Post-nap decline	−.38*	0.18	−1.71***	0.41	−1.00***	0.23
Morning nap-E	−1.34**	0.47	--	--	−0.71	0.40
Afternoon nap-P	−0.63*	0.27	0.71	0.40	--	--
Afternoon nap-E	−1.10***	0.25	0.24	0.41	−0.47	0.26
No-Nap-P	--	--	1.34**	0.47	0.63*	0.27
Evening decline	−0.33**	0.09	−0.60***	0.12	−0.30**	0.11
Morning nap-E	−0.27**	0.10	--	--	−0.30*	0.14
Afternoon nap-P	0.04	0.15	0.30*	0.14	--	--
Afternoon nap-E	0.20	0.29	0.47	0.29	0.16	0.27
No-Nap-P	--	--	0.27*	0.10	−0.04	0.15

Note: The four nap conditions were dummy coded. Three models were estimated, each with either the parent collected no-nap (No-Nap-P), experimenter collected morning nap (Morning Nap-E), or parent collected afternoon nap (Afternoon Nap-P) as a reference condition in order to evaluate all pairwise comparisons among the four cortisol profiles. Piecewise growth modeling was used to estimate linear coefficients for five separate periods.

^*p < .05,

^**p < .01,

^***p < .001