Table 6. Bootstrapping results of the total, direct and indirect effects of multiple mediation model.

Effects/variables	B	SE	95%CI
Total effect of trait self-control on sleep quality	.368	.075	[.221, .515]
Direct effect of trait self-control on sleep quality	.226	.062	[.104, .347]
Total indirect effect of trait self-control on sleep quality	.142	.049	[.044, .237]
Through SH1	.060	.030	[.002, .123]
Through SH2	.008	.011	[-.011, .035]
Through SH3	.013	.011	[-.006, .038]
Through SH4	.044	.022	[.005, .089]
Through bedtime media use	.018	.014	[-.002, .051]
Total effect of chronotype on sleep quality	.050	.013	[.024, .076]
Direct effect of chronotype on sleep quality	.018	.012	[-.005, .041]
Total indirect effect of chronotype on sleep quality	.032	.008	[.015, .047]
Through SH1	.016	.005	[.007, .027]
Through SH2	.003	.004	[-.005, .011]
Through SH3	.000	.001	[-.002, .003]
Through SH4	.005	.004	[-.001, .013]
Through bedtime media use	.007	.003	[.001, .014]

Note. B = unstandardized coefficient, CI = confidence interval, SE = standard error. SH1 = pre-sleep stress management, SH2 = sleep timing regularity, SH3 = avoiding sleep-disrupting food or activities, SH4 = keeping a restful sleep environment.