Any of various sleep-like conditions.
The art or skill of hypnotism.
A trancelike state, artificially induced, in which a person has a heightened suggestibility, and in which suppressed memories may be experienced.
A feeling of extreme anxiety or suffocation experienced during sleep; Sleep paralysis.
Any bad, miserable, difficult or terrifying situation or experience that arouses anxiety, terror, agony or great displeasure.
A very bad or frightening dream.
To have a nightmare.