ThirstyFish

"Sleepwalker" is a creepy piece of public art exhibited on New York City's High Line.

Sleepwalking, also known as somnambulism or noctambulism, is defined as a human state of combined sleep and wakefulness. There is no known cure. But then, wakefulness does not really have clear cut definition. Awareness is also a relative phenomenon. With so much ambiguity in these definitions, it is possible to argue that we all sleepwalker from time to time. Proof? Just look around you. Are people really aware of what they're doing?