Raw data for the paper. Codes for UTSN-L2 are available at https://github.com/tarotez/sleepstages. EEG data for teacher data and tests are in the following link (Google drive). https://drive.google.com/drive/folders/1Y5IYUKw0ehcYPmQFP5jNHZoe4hW_dfUZ?usp=drive_link