. Author manuscript; available in PMC: 2012 Oct 22.

Published in final edited form as: J Abnorm Psychol. 2011 Aug 15;121(1):39–50. doi: 10.1037/a0024946

Table 2.

Sleep Parameters Across Groups

	Group
Variable	Bipolar	Insomnia	Control
Sleep onset latency	25.32 (18.18)^a	33.75 (19.67)^b	8.22 (5.04)^c
Wake after sleep onset	19.31 (17.22)^a	36.02 (35.56)^b	10.21 (17.51)^c
Terminal wakefulness	30.27 (38.42)^a	27.24 (19.53)^a	16.53 (18.39)^a
Number of awakenings	1.55 (0.90)^a	1.82 (0.96)^a	1.02 (0.93)^b
Total wake time	74.89 (48.02)^a	97.01 (49.62)^a	34.97 (30.67)^b
Time in bed	505.66 (67.31)^a	512.86 (52.15)^a	483.67 (50.65)^a
Total sleep time	450.19 (68.98)^a	429.67 (48.20)^a	456.32 (50.12)^a
Sleep efficiency	85.45% (7.65%)^a	80.97% (9.25%)^a	93.09% (5.35%)^b
Bedtime	11:57p.m. (84.24)^a	12:21a.m. (95.51)^a	12:10a.m. (80.40)^a
Waketime	7:49 a.m (82.26)^a	8:24a.m. (72.70)^a	7:55a.m. (68.80)^a
Final arising time	8:22a.m. (82.05)^a	8:51a.m. (69.06)^a	8:12a.m. (74.83)^a

Note. Mean values are presented. Standard deviations are in parentheses. Means having the same subscript are not significantly different at p < .05. All values are in minutes unless otherwise noted.