Well-documented sleep datasets from healthy adults are important for sleep pattern analysis and comparison with a wide range of neuropsychiatric disorders. Currently, available sleep datasets from healthy adults are acquired using low-density arrays with a minimum of four electrodes in a typical sleep montage. The low spatial resolution is thus prohibitive for the analysis of the spatial structure of sleep. Here we introduce an open-access sleep dataset from 29 healthy adults (13 female, aged 32.17 ± 6.30 years) acquired at the Montreal Neurological Institute. The dataset includes overnight polysomnograms with high-density scalp electroencephalograms incorporating 83 electrodes, electrocardiogram, electromyogram, electrooculogram, and an average of electrode positions using manual co-registrations and sleep scoring annotations. Data characteristics and group-level analysis of sleep properties were assessed. The database can be accessed through ( https://doi.org/10.17605/OSF.IO/R26FH ). This is the first high-density electroencephalogram open sleep database from healthy adults, allowing researchers to investigate sleep physiology at high spatial resolution. We expect that this database will serve as a valuable resource for studying sleep physiology and for benchmarking sleep pathology.

Adult Sleep Laboratory Montreal Chest Institute McGill University Health Centre Montreal Quebec Canada

Analytical Neurophysiological Lab Department of Neurology Duke University Durham North Carolina USA

Analytical Neurophysiological Lab Montreal Neurological Institute and Hospital McGill University Montreal Quebec Canada

Department of Biomedical Engineering Duke University Durham North Carolina USA

International Clinical Research Centre St Anne's University Hospital Brno Brno Czech Republic

Multimodal Functional Imaging Lab Department of Biomedical Engineering McGill University Montreal Quebec Canada

Multimodal Imaging and Connectome Analysis Laboratory McConnell Brain Imaging Centre Montreal Neurological Institute and Hospital McGill University Montreal Quebec Canada

The Czech Academy of Sciences Institute of Scientific Instruments Brno Czech Republic

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