Comparison of sleep characteristics on match days and non-match days
| Variable | Day type (mean (±SD)) | Difference (effect size (±90% CI)) | ||||
|---|---|---|---|---|---|---|
| No match | Day match | Night match | Day match vs no match | Night match vs no match | Night match vs day match | |
| Sea-level natives (Australians, n=10) | ||||||
| Time in bed (h) | 9.0 (±0.4) | 9.3 (±1.2) | 9.0 (±1.0) | 0.2 (±0.6) | 0.0 (±0.4) | −0.2 (±0.5) |
| Sleep onset (hh:mm) | 23:50 (±0:29) | 00:10 (±0:75) | 23:44 (±0:28) | 0.3 (±0.7) | −0.1 (±0.3) | −0.5 (±0.6) |
| Sleep offset (hh:mm) | 08:14 (±0:30) | 08:10 (±0:53) | 08:11 (±0:51) | −0.1 (±0.3) | −0.1 (±0.4) | 0.0 (±0.3) |
| Total sleep time (h) | 6.5 (±0.3) | 6.2 (±1.0) | 6.7 (±1.0) | −0.4 (±0.6) | 0.2 (±0.5) | 0.5 (±0.5) |
| Cumulative sleep time (h) | 6.6 (±0.4) | 6.2 (±1.0) | 6.7 (±1.0) | −0.5 (±0.6) | 0.1 (±0.4) | 0.5 (±0.5) |
| Sleep efficiency (%) | 77 (±3) | 78 (±4) | 79 (±3) | 0.3 (±0.6) | 0.6 (±0.7) | 0.3 (±0.9) |
| Move and Frag Index | 29 (±5) | 28 (±6) | 25 (±7) | −0.2 (±0.4) | −0.7 (±0.7) | −0.5 (±0.7) |
| Subjective sleep quality | 3.7 (±0.4) | 3.7 (±0.6) | 3.4 (±0.5) | −0.1 (±0.6) | −0.7 (±0.7) | −0.5 (±0.8) |
| High-altitude natives (Bolivians, n=9) | ||||||
| Time in bed (h) | 7.9 (±0.3) | 8.5 (±0.7) | 8.3 (±0.6) | 0.9 (±0.5) L | 0.6 (±0.5) | −0.2 (±0.6) |
| Sleep onset (hh:mm) | 00:28 (±0:17) | 00:13 (±0:32) | 23:56 (±0:25) | −0.5 (±0.5) | −1.1 (±0.5) V | −0.5 (±0.7) |
| Sleep offset (hh:mm) | 07:49 (±0:18) | 08:20 (±0:46) | 07:51 (±0:42) | 0.7 (±0.5) | 0.0 (±0.5) | −0.5 (±0.5) |
| Total sleep time (h) | 5.7 (±0.5) | 6.4 (±0.7) | 6.0 (±0.9) | 0.8 (±0.4) L | 0.4 (±0.4) | −0.4 (±0.4) |
| Cumulative sleep time (h) | 5.7 (±0.5) | 6.5 (±0.9) | 6.0 (±0.9) | 0.9 (±0.5) L | 0.4 (±0.4) | −0.5 (±0.4) |
| Sleep efficiency (%) | 77 (±4) | 79 (±5) | 76 (±6) | 0.3 (±0.3) | −0.2 (±0.4) | −0.4 (±0.3) |
| Move and Frag Index | 26 (±5) | 24 (±8) | 26 (±7) | −0.3 (±0.4) | 0.0 (±0.5) | 0.2 (±0.6) |
| Subjective sleep quality | 3.8 (±0.3) | 4.3 (±0.6) | 4.0 (±0.0) | 0.4 (±0.4) | 0.2 (±0.4) | −0.3 (±0.7) |
Measures of sleep quantity and sleep quality for the Australians and Bolivians for days on which the teams competed in no match, a day match and a night match. Comparisons between the measures for each type of day are presented as standardised differences (ie, effect size with 90% CI). The likelihood that an observed difference was a true difference is indicated by ‘L’ if likely (ie, 75–95%) and ‘V’ if very likely (ie, 95–99%).