s as a mediator and each PSI-SF subscale as dependent variables.  Regarding the Parental Distress subscale, the results (see Table [0](#T0){ref-type="table"}) indicated that the total effect (*c path*) of sleep disturbances on this dimension of parenting stress (Coeff. = 0.00; *p* \< 0.000) was significant. The results also illustrated that sleep disturbances were significantly associated with the mediator PTS symptoms (Coeff. = 0.00; *p* \< 0.00; *a path*). The effect of the mediator on PD was significant (Coeff. = 0.00; *p* \< 0.000; *b path*). The direct effect of sleep disturbances on PD was also significant (Coeff. = 0.00; *p* \< 0.00; *c*′ *path*). Moreover, PTS symptoms mediated the association between sleep disturbances and PD (*r*^0^ = 0.00; *F* = 00.00; *p* \< 0.000; Coeff. = 0.00; 00% CI = \[0.00, 0.00\]) and the coefficient of the *R*-squared mediation effect size was 0.00 (00% CI = 0.00, 0.00).  ######   