What term describes the state of walking while fully asleep?

The term that accurately describes the state of walking while fully asleep is commonly recognized as sleepwalking. Sleepwalking involves complex behaviors that occur during deep sleep, specifically during non-REM sleep, where the individual may walk, talk, or perform various activities while still largely unaware of their actions.

Although "somnambulism" is a technical term that also refers to sleepwalking, the more widely used and understood term is indeed sleepwalking. This aligns with the general terminology used in both clinical settings and everyday language.

Hypnagogia refers to the transitional state between wakefulness and sleep, characterized by hallucinations and sensations, which is unrelated to the act of walking. Noctambulism is a less commonly used synonym for sleepwalking, but it is not as widely recognized in general discourse compared to sleepwalking.