| Release Date | July 23, 1998 | |
|---|---|---|
| Status | Released | |
| Original Title | The Sleep Files: Altered States | |
| Runtime | 1h 0min | |
| Budget | — | |
| Revenue | — | |
| Language | — | |
| Original Language | English | |
| Production Countries | United Kingdom | |
| Production Companies | Twenty Twenty TelevisionDiscovery Communications | |