The SS4 subset of the Montreal Archive of Sleep Studies (MASS) cohort includes :
- 40 subjects (age 25.3±4.3 years, age range: 18-35 years)
- 14 males (age 27.4±4.5 years, age range: 21-35 years)
- 26 females (age 24.1±3.9 years, age range: 18-33 years)
- Sleep stage scoring rules : R&K
- Page size (s) : 20
The sleep stages are the same as those included in the dataset named "SS4 Biosignals and Sleep stages".
Sleep stage scoring does not necessarily start at the beginning of the PSG recording.