Physiological Sleep Propensity Might Be Unaffected by Significant Variations in Self-Reported Well-Being, Activity, and Mood
Table 2
Results of -test aimed on comparison of objective measures of sleepiness and sleep.
Season
Winter either before or after treatment
Summer
Condition
Before
After
Remission
Group
Patients
Controls
Patients
Controls
Patients
Controls
Latency to stage 1 sleep (SL), min, on 20-min interval of napping attempt and baseline sleep
Daytime
17.4 ± 3.9
13.9 ± 5.3
15.3 ± 4.2
14.9 ± 4.8
14.1 ± 2.6
13.4 ± 4.7
Nighttime
14.2 ± 5.5
11.5 ± 4.0
13.4 ± 4.9
11.7 ± 4.0
12.6 ± 4.1
10.1 ± 5.4
Baseline
12.4 ± 7.7
9.4 ± 6.7
13.9 ± 6.0
6.3 ± 4.7
6.0 ± 5.9
2.8 ± 3.2
Baseline sleep
TST, min
483.5 ± 50.3
401.8 ± 68.0
469.9 ± 37.7
437.0 ± 36.5
478.8 ± 42.3
423.7 ± 47.6
SL, min
21.0 ± 23.3
9.4 ± 6.7
23.0 ± 17.5
6.3 ± 4.7
19.2 ± 17.4
12.0 ± 6.0
Wake, min
14.3 ± 5.4
21.6 ± 10.8
11.0 ± 6.6
8.5 ± 6.5
11.3 ± 2.9
36.2 ± 25.5
Stage 1, %
5.2 ± 1.4
7.2 ± 2.6
5.9 ± 1.6
3.6 ± 1.4
7.5 ± 3.8
5.8 ± 1.2
Stage 2, %
64.9 ± 6.0
60.9 ± 6.7
57.7 ± 6.1
64.5 ± 2.4
56.9 ± 9.5
59.9 ± 9.1
SWS, %
9.7 ± 4.9
14.8 ± 4.4
12.8 ± 4.4
12.6 ± 3.5
13.9 ± 9.8
15.1 ± 9.8
REM, %
20.2 ± 3.7
17.1 ± 3.8
23.6 ± 3.2
19.3 ± 2.4
21.7 ± 2.8
19.2 ± 4.9
SE, %
92.9 ± 5.5
92.5 ± 3.9
93.2 ± 3.1
96.7 ± 1.9
95.5 ± 2.1
89.7 ± 5.2
Notes. SL: Latency to onset of stage 1 sleep; Daytime: mean SL for 5 naps scheduled at 10:00, 12:00, 14:00, 16:00, and 18:00; Nighttime: mean SL for 4 naps at 23:00, 1:00, 3:00, and 5:00; Baseline: SL on the first 20-min interval of Baseline night sleep (light off at 23:00). See also Figure 1. Wake: wake time after sleep onset; sleep stages are given as percentage to Total Sleep Time (TST); SWS: slow wave sleep (stages 3 and 4 sleep); REM: Rapid Eye Movement sleep; SE: sleep efficiency expressed as percentage of sleep time in total bed time (i.e., TST plus total wake time). Level of significance for difference between patients and controls: ().
