| Features combination | WK | S1 | S2 | S3 | REM | Overall |
| EEG spectral components DFA features and spectral features | 95% | 92% | 94% | 95% | 94% | 85.18% |
| RAW EEG DFA features and spectral features | 92% | 90% | 93% | 94% | 92% | 80.17% |
| Spectral features only | 87% | 87% | 88% | 89% | 91% | 68.83% |
| EEG spectral components DFA features only | 88% | 88% | 91% | 93% | 91% | 75.56% |