TABLE 1.
Intranight Variability Across Night of the Week
| Variable | n | Monday | Tuesday | Wednesday | Thursday | Friday | Saturday | Sunday | Fa | p |
|---|---|---|---|---|---|---|---|---|---|---|
| WASO | ||||||||||
| M(SEM) | 55 | 14.53 (1.21) | 16.12 (1.74) | 13.65 (0.80) | 16.09 (1.78) | 14.18 (0.88) | 14.95 (0.96) | 15.26 (1.01) | 0.76 | .50 |
| TST | ||||||||||
| M(SEM) | 55 | 5.45 (0.31) | 6.07 (0.21) | 5.89 (0.24) | 6.22 (0.23) | 6.29 (0.19) | 5.91 (0.20) | 6.33 (0.24) | 2.27 | .06 |
| Sleep latencyb | ||||||||||
| M(SEM) | 55 | 0.31 (0.10) | 0.23 (0.05) | 0.17 (0.03) | 0.18 (0.05) | 0.35 (0.08) | 0.18 (0.04) | 0.34 (0.8) | 1.75 | .15 |
| Sleep efficiencyc | ||||||||||
| M(SEM) | 55 | 79.89 (1.74) | 75.92 (2.17) | 78.54 (1.37) | 77.70 (1.96) | 77.09 (1.74) | 78.73 (1.86) | 76.14 (2.13) | 1.29 | .27 |
| Sleep disturbances | ||||||||||
| M(SEM) | 55 | 24.58 (1.22) | 24.29 (3.31) | 24.88 (1.28) | 25.24 (1.63) | 22.62 (1.16) | 25.22 (1.35) | 24.12 (1.34) | 0.72 | .61 |
Note. WASO = wake after sleep onset. TST = total sleep time.
a
Greenhouse–Geiser correction for nonsphericity.
b
Represents minutes of sleep latency.
c
Represents percentage of sleep efficiency.