. Author manuscript; available in PMC: 2017 Apr 1.

Published in final edited form as: Arch Womens Ment Health. 2015 Aug 1;19(2):209–218. doi: 10.1007/s00737-015-0557-5

Table 2.

Maternal sleep from 33 weeks gestation to 16 weeks postpartum

	33 Weeks	2 Weeks	6 Weeks	16 Weeks	Effect of Week
Measure
Sleep Onset	23:32±73 min	23:38±75 min	23:36±72 min	23:36±86 min	F_3,114=0.04, p=ns
Sleep Offset	7:57±85 min	8:21±89 min	8:09±77 min	7:35±81 min	F_3,114=1.62, p=ns
Time in Bed	8.3±0.9 hrs	8.7±0.9 hrs^*	8.6±1.0 hrs	8.0±1.2	F_3,114=2.85, p=.04
TST	6.8±1.3 hrs	6.2±0.8 hrs	6.3±0.9 hrs	6.5±1.0 hrs	F_3,114=2.32, p=.08
Wake Minutes	89±42 min	153±42 min ^#,^*	137±37 min ^#,^*	91±35 min	F_3,114=20.73, p<.001
Sleep Efficiency	82.9±8.5%	72.4±6.9% ^#,^*	74.8±6.5% ^#,^*	82.7±5.4%	F_3,114=17.75, p<.001
Number of Naps	2.3±2.0	2.5±1.7	2.1±1.6	1.8±2.4	F_3,115=0.71, p=ns
Mean Nap Minutes	51.3±35.5 min	49.8±31.1 min	49.0±36.7 min	57.1±63.4 min	F_3,115=0.21, p=ns

= Significantly different from 33 weeks;

= significantly different from 16 weeks