My Butterfly Pillow (Patent Pending) is the first pillow designed by side sleepers for side sleepers with a shoulder bay allowing shoulders to connect with the pillow without changing the shape. Our core pillow is constructed of top of the line, custom blended polyurethane foam with gel particles for firmness and comfort, with better memory features than common memory foam pillows or pillows made of shredded memory foam. There are 62 vertical shafts constructing the motion grid which allows the pillow to move semi-independently as you change positions. The removable ear pillow within the core pillow is 30% softer with a floating cube design for constant comfort. Embedded beneath the ear pillow are two night owl speakers providing crisp, clean sound for white noise, audio book or music directly into the pillow without disturbing your sleeping partner.