Sleep Spindles Characteristics in Insomnia Sufferers and Their Relationship with Sleep Misperception
Table 2
Medians (ranges) of laboratory night 3 objective and subjective sleep parameters of good sleepers (GS) and paradoxical (PARA-I) and psychophysiological (PSY-I) insomnia sufferers.
GS
PARA-I
PSY-I
Subjective
SOL (min)
8.00 (0.00–25.00)
30.00 (0.00–120.00)
15.00 (8.00–60.00)
WASO (min)
3.00 (0.00–45.00)
60.00 (0.00–240.00)
17.50 (0.00–120.00)
TST (min)
450.00 (350.00–516.00)
327.50 (0.00–390.00)
420.00 (332.00–491.00)
SE (%)
95.83 (82.97–100.00)
69.38 (11.76–81.30)
88.20 (69.40–95.83)
Objective
SOL (min)
6.00 (1.00–31.33)
5.67 (2.00–32.67)
6.67 (1.33–30.33)
WASO (min)
16.33 (3.67–64.00)
29.50 (5.00–44.67)
22.34 (1.00–136.67)
TST (min)
424.00 (345.67–491.00)
419.00 (371.33–458.33)
424.67 (335.00–507.00)
SE (%)
94.00 (85.00–98.00)
90.50 (88.00–96.00)
92.50 (72.00–99.00)
Stage 1
Total time (min)
8.00 (1.00–32.33)
6.34 (1.33–22.67)
10.67 (1.67–35.33)
Proportion (%)
1.82 (0.21–8.44)
1.52 (0.32–5.67)
2.86 (0.45–7.46)
Stage 2
Total time (min)
257.67 (170.00–350.00)
248.67 (175.00–324.67)
276.67 (148.33–360.00)
Proportion (%)
62.69 (40.28–71.28)
61.24 (41.63–72.26)
64.13 (33.36–79.76)
SWS
Total time (min)
21.67 (0.84–62.67)
20.50 (4.50–73.50)
12.92 (0.00–97.00)
Proportion (%)
4.87 (0.23–14.51)
4.78 (0.99–17.49)
2.93 (0.00–21.82)
REM
Total time (min)
114.67 (60.00–169.33)
103.84 (63.67–139.67)
103.34 (67.33–164.67)
Proportion (%)
26.85 (17.36–37.64)
25.04 (17.15–32.67)
25.66 (14.92–37.97)
Note. SOL: sleep onset latency. WASO: wake after sleep onset. TST: total sleep time. SE: sleep efficiency. SWS: slow wave sleep. REM: rapid eye movement. a: significant difference between the PARA-I and PSY-I. b: significant difference between the PARA-I and GS. c: significant difference between the PSY-I and GS.
