The premium 100% viscoelastic memory foam in our Core Memory Foam Pillow is a mark of high quality seen in only the best memory foam pillows. The Core Memory Foam Pillow is made of premium 100% viscoelastic memory foam to conform to the unique shape of your head and neck. This responsive material provides gentle support as you move from one sleeping position to another. Core Memory Pillow helps alleviate snoring, neck pain or headaches. Choose the Midsize pillow proportioned for smaller adults and teens at 19.5” x 12” (48cm x 30cm) with 3” (8cm) and 4” (10cm) lobes or the Fullsize option at 19.5” x 14” (48cm x 36cm) with 4” (10cm) and 5” (13cm) lobes. Each option fits a standard pillowcase and includes a plush fabric cover (machine washable). Helps correct and maintain proper neck posture.