Ergonomic Medically Firm Memory Foam Bed Pillow by GOXY w. Magnets and Extra Bamboo Pillowcase 99% memory foam, 1% magnets Adopts to body, cool and comfortable, breaths with no odor, lasts - designed by Engineer and Holistic Guru that has chosen best characteristics for pillow to make your sleep enjoyable and relaxed (Quality memory foam); Relaxes the pain and stiffness while positioning neck vertebrae in right position (Ergonomic); Neutralizes daily stress and allow relaxed sleep (Magnets) Has all antibacterial and hypoallergenic effects while allows using without other cover alternatively two pillowcases (Bamboo with Aloe Vera); No risk  90-days are long enough to make proper experience or return them without extra cost.