Product Description:
Memory foam pillows are designed to conform to the shape of your head and neck, offering personalized support and pressure relief, which helps in maintaining proper spinal alignment. They are often used for orthopedic support and are known for retaining their shape over time. 

Material Description:
Memory foam pillows are typically made from viscoelastic polyurethane foam, a synthetic foam that responds to body heat and weight. The covers can be made from materials like 100% polyester knitted fabric, which are often breathable, removable, and machine washable. These pillows are also often hypoallergenic and resistant to dust mites and allergens.