Table 2.
The ratio each stage in nocturnal sleep (%)
| Night | DEEP | LIGHT | REM | WAKE | |
|---|---|---|---|---|---|
| Subject 1 | 1st | 17.6 | 50.1 | 29.1 | 3.2 |
| 2nd | 13.9 | 52.2 | 26.9 | 6.9 | |
| 3rd | 18.2 | 52.8 | 25.5 | 4.4 | |
| 4th | 18.5 | 54.9 | 24.3 | 2.3 | |
| Subject 2 | 1st | 19.7 | 58.5 | 15.9 | 5.8 |
| 2nd | 18.9 | 62.6 | 13.9 | 3.6 | |
| 3rd | 23.3 | 59.1 | 15.9 | 1.6 | |
| 4th | 19.7 | 54.5 | 23.9 | 1.9 | |
| Subject 3 | 1st | 26.1 | 55.0 | 15.3 | 3.7 |
| 2nd | 28.3 | 51.2 | 20.9 | 9.5 | |
| 3rd | 29.8 | 53.2 | 18.4 | 8.6 | |
| 4th | 18.2 | 47.4 | 22.7 | 11.7 | |
| Subject 4 | 1st | 32.4 | 50.5 | 13.9 | 3.2 |
| 2nd | 32.1 | 43.8 | 22.2 | 1.9 | |
| 3rd | 27.4 | 45.6 | 24.2 | 2.7 | |
| 4th | 28.9 | 48.7 | 18.1 | 4.3 | |
| Subject 5 | 1st | 12.0 | 62.6 | 23.8 | 2.6 |
| 2nd | 15.6 | 62.2 | 20.1 | 3.2 | |
| 3rd | 18.9 | 56.7 | 22.5 | 1.9 | |
| 4th | 14.8 | 47.8 | 29.8 | 7.6 | |
| Subject 6 | 1st | 12.8 | 48.0 | 4.0 | 33.2 |
| 2nd | 23.7 | 52.9 | 14.2 | 9.2 | |
| 3rd | – | – | – | – | |
| 4th | 20.8 | 54.6 | 17.0 | 7.6 |