This picture is of the Sheet Stealer, a product designed by Noam Toran, which over the course of the night slowly steals the sheets until the now awake individual rolls over and takes it back. He designed this piece to recreate both bad and good aspects of being in a relationship.
Here is an interview with Noam Toran, that gives some more information about him and his projects.
Hat tip from a fellow sheet stealer.
