Sleep measure | Wednesday (n=185) | Thursday (n=188) | p Value |
---|---|---|---|
TST (minutes)* | 442 (4) | 437 (4) | 0.20 |
WASO (minutes)† | 68 (43) | 65 (46) | 0.40 |
Sleep efficiency (%)† | 86.1 (9.3) | 87.1 (7.5) | 0.54 |
SOL (minutes)† | 2 (4) | 2 (4) | 0.38 |
Number of awakenings* | 24 (1) | 22 (1) | 0.05 |
Length of awakenings (minutes)† | 3 (2) | 3 (1) | 0.96 |
Sleep onset time | S: 9.4% L: 52.4% E: 38.3% |
E=more than 30 min earlier than Wednesday; L=more than 30 min later than Wednesday; S=within 30 min of Wednesday.
*Data are presented as mean (SE), paired Student's t-test.
†Data are presented as median (IQR), Wilcoxon Signed-rank test.
SOL, sleep onset latency; TST, total sleep time; WASO, wake after sleep onset.