This unique, patented pillow has a quilted side panel which creates a distinct edge that will not collapse, allowing the mask to comfortably hang over the side of the pillow. The design makes it durable enough to support the head and neck without losing its edge, yet soft enough to sleep on all night. In addition to CPAP users, patients required to sleep on their side for other reasons such as oral or dental appliances, fibromyalgia, chronic pain, or pregnancy can benefit from the pillow and its unique shape. Fitted pillowcase included.