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. 2021 Dec 17;45(3):zsab269. doi: 10.1093/sleep/zsab269

Table 2.

Actigraph-estimated sleep parameters across experimental conditions

Short Sleep (M ± SD) Healthy Sleep (M ± SD) P* Cohen’s d
Sleep onset (time) 00:44 ± 0:31 22:30 ± 0:43 <.0001 3.57
Sleep offset (time) 07:01 ± 0:21 06:58 ± 0:27 .188 0.12
Sleep period (h) 06.27 ± 0.52 08.47 ± 0.64 <.0001 3.77
Sleep efficiency (%) 92.65 ± 4.40 88.84 ± 5.97 <.0001 0.73

*P values were derived from paired-sample t-tests.