BackJoy SleepSound Grey Pillow for Neck Posture and Pain Relief | Plane Pillow Innovative Combination of cool comfort &trade; memory foam and Soft Support. Naturally adjusts and conforms to your head and neck, providing optimal sleeping posture and comfort while you travel. Ergonomic Design: Aligns and supports proper head and neck posture so you can travel in comfort and avoid aches. Controlled Cut: Designed to fit your head more comfortably. Thermoregulation: Breathable materials keep you cool, comfortable, and rested. Adjustable control: fits to your size and preference