The FIRM Tri-Core Cervical Pillow helps provide proper alignment of the spine. Our most requested fiber support pillow provides better support and lasts longer than traditional pillows. The trapezoid shaped center delivers great orthopedic benefits for back sleeping by cradling the head and allowing the built in neck roll to firmly support the neck. The comfortable, but firm, side lobes support the head in a natural position when side sleeping. Maximize your comfort and support, the two different width neck rolls on top and bottom provide a custom fit for different sized sleepers. The generous side lobes are taller for side sleeping, and help support the neck. High resiliency fiber springs back when compressed for exceptional comfort and durability. Blended cotton cover is breathable and soft to the touch. The Tri-Core standard size fits a standard pillowcase and the midsize and petite will leave some extra room. If you are new to a cervical support pillow, it may take time to adjust; this is the pillow working to help restore proper cervical curve during sleep. Sleep as well while traveling as you do at home with proper head and neck support. The compact size of Travel Core allows you to easily fit this pillow in your suitcase. Use while sitting (lobes down with neck in center) or lying down (lobes up or down). Tri-Core Full size - 24x16 inches. Tri-Core Travel - 18x9 inches. KIT001 Tri-Core Cervical Pillow - Standard Support & Tri-Core Travel Pillow