The Sleep Files: Altered States
- Sal: 1998
- Welat: United Kingdom
- Genre: Documentary
- Studio: Twenty Twenty Television, Discovery Communications
- Keyword:
- Serek: Joseph Bullman
- Avdan: Nigel Anthony, Rosalind Cartwright, Denise Corke, Michel Corke, Penny Corke, Floyd S. Cornelison, Jr., M.D.
