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Mean Duration of Sleep Characteristics Between the Four Types of Sleep Patterns
| Sleep Characteristics | Monophasic (n=105) | Biphasic-Siesta (n=141) | Biphasic-Dawn (n=46) | Polyphasic (n=113) | p-value |
|---|---|---|---|---|---|
| Mean ± SD | Mean ± SD | Mean ± SD | Mean ± SD | ||
| Total day sleep (hours) | 7.60 ± 1.38 | 7.96 ± 1.45 | 7.51 ± 1.42 | 8.12 ± 1.53 | 0.013 |
| Total night sleep (hours) | 6.87 ± 1.34 | 6.46 ± 1.49 | 6.99 ± 2.00 | 6.79 ± 1.38 | 0.056 |
| Afternoon siesta (minutes) | 13.74 ± 19.82 | 61.02 ± 40.83 | 13.04 ± 23.20 | 68.70 ± 42.85 | <0.001 |
