Table 2.

DLMO, DLMO phase shift, and DLMO phase angles of entrainment (mean ± SD)

	Control	Intervention
Baseline DLMO (day 16)	21:06 ± 1:36	20:50 ± 1:22
Final DLMO (day 30)*	21:07 ± 1:43	20:13 ± 0:55
DLMO Phase Shift (h)**	−0.1 ± 0.8	0.6 ± 0.8
Baseline DLMO→Baseline sleep onset time (h)	3.1 ± 1.4	3.2 ± 1.1
Final DLMO→Experimental Week 2 sleep onset time (h) *	3.1 ± 1.1	2.5 ± 0.9
Baseline DLMO→Baseline wake-up time (h)	9.2 ± 1.7	9.2 ± 1.4
Final DLMO→Experimental Week 2 wake-up time (h)	9.6 ± 1.8	9.9 ± 0.9

*p < .05.

^** p < .01.