Sleep staging stops picking electrodes: any EEG-EOG mix scores a night, and resolution drops to seconds
Sleep staging has long depended on fixed electrode sets and 30-second expert-scored epochs, which makes multi-center studies hard to harmonize. AnySleep fuses any number of EEG and EOG channels through channel attention, trained and validated on 20,589 overnight recordings from 28 datasets, matching or slightly exceeding U-Sleep at 30-second epochs and staying strong with no EOG or a single derivation. At sub-30-second resolution, the share of expert-annotated arousal time overlapping predicted Wake rises from 7.7% at 30 seconds to 57.7% near 2 seconds.