Table 3.

Sleep Diaries

		Pre-intervention		Post-intervention				Effect Size (ηp2)
variable	condition	mean	SD	mean	SD	Time (F)	Treatment x Time (F)
TIB	MBCT	517.1	60.1	492.1	58.4	1.9	.02	0.001
	CON	529.2	61.5	510.4	53.5
TST	MBCT	419.6	82.7	436.3	62.3	3.9	2.6	.12
	CON	451.4	71.3	440.3	61.9
SE	MBCT	81.3	13.0	88.8	8.8	1.9	9.3**	0.33
	CON	85.1	6.5	86.1	6.9
SOL	MBCT	19.3	19.6	11.8	9.4	.006	1.5	.07
	CON	19.8	10.5	18.3	8.4
WASO	MBCT	27.5	39.5	15.9	25.8	.05	4.2#	.18
	CON	14.3	14.2	16.7	24.6
TWT	MBCT	46.8	52.4	27.7	28.4	.04	4.5*	.19
	CON	34.2	20.7	35.0	30.0
quality	MBCT	2.9	0.5	3.3	0.6	0.08	0.74	0.04
	CON	3.1	1.0	2.9	0.5

Note: MBCT= Mindfulness-Based Cognitive Therapy (n=13)

CON= Waitlist control (n=10)

TIB= time in bed (minutes); TST= total sleep time (minutes), SE=sleep efficiency (%), TWT= total wake time (minutes)

^*p < .05

^**p < .01

^#p < .10