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. 2023 Jun 1;46(8):zsad158. doi: 10.1093/sleep/zsad158

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Figure 3. — Sleep architecture of female DIO and lean C57BL/6J mice. Obesity significantly decreased (A) total sleep time, which was attributed to a reduction in the duration of (B) NREM sleep, but not (C) REM sleep. Overall quality of sleep was similar between groups since no significant differences were observed in (D) sleep efficiency, (E-F) number of sleep bouts, and (G-H) average duration of sleep bouts. (I) Arousal index was similar between groups, which suggests that obesity did not affect sleep fragmentation in female mice. Data are shown as median ± 1.5*IQR. Independent t-test and Mann–Whitney U test.