Quality Material: Our triangle pillow is designed with a removable knitted cover, which is soft and breathable. Features zipper closure, the cover can be removed for washing easily.Large Backrest Design: This cushion features an enlarged and widened backrest design that effectively supports the head and waist, lessen fatigue from prolonged sitting or lying down.Lumbar Support for Reclining: This memory foam bed wedge pillow,when reclining, it provides support for the waist to relieve pressure and protect health.Enhanced Sleep Quality: Experience improved sleep posture ,due to the ergonomically designed memory foam wedge pillow.Multifunctional Use: The wedge pillow can be used as a bedside cushion, sofa backrest pillow, or leaning pillow to meet various home needs. Specification: Material: Knitted Cotton,Memory Foam Size Chart: 56cmx56cmx30.5cm/22.05inchx22.05inchx12.01inch Package Includes: 1 Wedge Pillow Note: Please allow slightly errors 1-2cm differences due to manual measurement.