<p>A relaxation device (10) includes a body supporting member (13) that supports a user's body and includes a seat (30). A rocking driver (12) controlled by a control unit (24) to rock the body supporting member in at least one direction. A cover member (40) is attached to both a case (14), which covers the rocking driver, and the body supporting member (13). The cover member closes a clearance between the case and the body supporting means, and the cover member is deformable in correspondence with rocking of the body supporting member. The cover member includes an inner cover (41) and an outer cover (42), which covers the inner cover and has higher flexibility than the inner cover.</p>
