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Sleep indicators of subjects.
| Subject | ||||
|---|---|---|---|---|
| S1 | S2 | S3—Day1 | S3—Day2 | |
| Shifts in sleep posture (n/hour) | 1.63 | 1.00 | 2.38 | 2.53 |
| Number of postures that last longer than 15 min (n/hour) | 1.38 | 1.20 | 1.50 | 1.75 |
| Average duration in a posture (min) | 19.20 | 60.00 | 25.26 | 23.68 |
| Sleep efficiency (percentage) | 89.38 | 96.00 | 91.67 | 83.56 |
