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Sleep. Essay Preview: Sleep. Report this essay REM and NREM sleep (REM- Rapid Eye Movement) Two types of sleep: NREM &REM (occurs appx. every 90 min.) Stage 4- deepest sleep with 50% or more delta (slow) waves; sleepwalking and sleep terrors can occur during partial arousal from stage 4 sleep Narcolepsy- serious sleep disorder characterized.
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Hypnotic SuggestionHypnotic SusceptibilityNrem SleepState Of Heightened Suggestibility