The Sleep Files: Altered States
- વર્ષ: 1998
- દેશ: United Kingdom
- શૈલી: Documentary
- સ્ટુડિયો: Twenty Twenty Television, Discovery Communications
- કીવર્ડ:
- ડાયરેક્ટર: Joseph Bullman
- કાસ્ટ: Nigel Anthony, Rosalind Cartwright, Denise Corke, Michel Corke, Penny Corke, Floyd S. Cornelison, Jr., M.D.
