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. 2024 Apr 3;11(4):352. doi: 10.3390/bioengineering11040352

Figure 4.

Figure 4

Changes in absolute sleep stage duration based on cool vs. warm sleepers in Early and Late Phases. Boxplots depicting distributions of changes in time (min) spent in each sleep stage for Pod OFF vs. cool (blue) or warm (red) temperatures during the Early and Late Phases for females (A) and males (B). The black diamonds denote sample means, and the horizontal lines within the boxes denote medians. The dotted line at 0 indicates no change from Pod OFF Baseline to Pod ON. * Indicates a significant difference in linear mixed models from Pod OFF Baseline at p < 0.05, and ‡ indicates trending toward significance at p < 0.10.