Significant reductions in PSQI scores were found in the intervention group ( n = 28 ) from baseline ( meanSD , 10.22.5 ) to week 6 ( 5.92.4 , p < 0.001 ) , while there were no changes in the control group ( n = 32 ) from baseline ( 9.02.4 ) to week 6 ( 9.52.6 ) .