An assemblage piece of art using the prompt "sleepwalker" could depict a young girl figure, in the act of sleepwalking through a bedroom lit by the moonlight coming from a window.The figure is depicted with their eyes closed, arms outstretched, and a dazed expression on their face. The rooom includes other symbolic or metaphorical elements, such as clocks or mirrors, Overall, the piece would aim to evoke a sense of mystery and dream-like surrealism.