Effectively. However, that is an incomplete understanding.

What you perceive as the entirety of yourself is merely a cross-section of a greater individual that extends into higher dimensions. The Sansa expands the awareness of the viewer to this extended self. Once this awareness is achieved, it becomes possible to utilize one's other cross-sections--other selves. When one sleeps, the others gain the benefits.

In essence, the Sansa allows you to work-share yourself.