Sleep 16 - Audio - Robert Rich’s sleep albums - Somnium, 2001 (7 hrs), Perpetual: A Somnium Continuum, 2014 (8 hrs)
Somnium (2001) is an album by the American ambient musician Robert Rich. It is a seven-hour album on a DVD-video that was partly inspired by Rich's sleep concert series of the early 1980s and mid 1990s. Perpetual is a 2014 8 hour sequel, revisiting and developing ideas from the first album.
Somnium, 2001 (7 hrs)
https://robertrich.com/album/somnium/
Perpetual: A Somnium Continuum, 2014 (8 hrs)
https://robertrich.com/album/perpetual/
Spotify sleep playlists