Comfortable Sleep Pillow - provides a therapeutic relief for all sleep and neck pains, and you will feel completely refreshed when you wake up and rest all day. Its high-quality fabric keeps you cool and comfortable all night. Ergonomics - Proven contour design perfectly supports and aligns your head, neck, shoulders and back. You will fall asleep faster and deeper. When your body tries to adjust to the right position, you may feel uncomfortable during the first two weeks. Whether you are in bed, stomach bed or side bed, you can try new comfort. For more information, please visit the saien website https://www.travel-lax.com or Ali International Mall High-quality materials - breathable memory forms provide better air circulation, keeping you cool and dry. Our hypoallergenic rayon/polyester proprietary blend pillowcase feels soft and supple while providing dust-proof protection. Safety - All materials are chemical free and improve health.