Ergonomic Curved Design Lucresta wedge pillow set features a perfectly crafted ergonomic curved design that offers unparalleled support and comfort. Its curved shape conforms to your body's natural curves, promoting better pressure distribution and alignment of your neck and spine. Multi-Functional Support System The pillow set includes 4 adjustable pillows with different shapes. You can make a proper shape for sitting up, lying down and sleeping on with adjustable pillows, making it versatile for your diverse needs. Perfect for recovery after surgery/injury, alleviating acid reflux and improving sleep quality. Premium Fabric & Foam Made of premium 45D high-density memory foam for superior support and comfort, the pillow set conforms your body's shape, providing customized cushioning and pressure/pain relief.