MCI	Mild Cognitive Impairment
MASS	Montreal Archive of Sleep Studies
EEG	Electroencephalography
LR	Logistic regression
RF	Random forest
XGBoost	Extreme gradient boosting
SVM	Support vector machine
RBF-SVM	Radial basis function support vector machine
ROC-AUC	Receiver operating characteristic–area under the curve
MMSE	Mini-mental state examination
MoCA	Montreal Cognitive Assessment
MRI	Magnetic resonance imaging
LOSO	Leave-one-subject-out
AASM	American academy of sleep medicine
NC	Not classified
REM	Rapid eye movement
WASO	Wake after sleep onset