We have been analyzing the SHHS and could not locate the sleep stages annotations in the edf files. Could you please help me locate it?
Thanks for using the site. You can read more about the SHHS annotations here - https://sleepdata.org/datasets/shhs/pages/05-polysomnography-introduction.md
We generally do not post EDF+ files (with an embedded annotations channel), instead we keep staging and event scoring annotations in separate files (for SHHS, two XML formats).