Headboard upholstered California King size, Green 4 Key benefits Provides stable back and neck support for comfortable sitting in bed. Acts as a soft alternative to a hard headboard and helps fill the gap between mattress and wall. Builtin side pockets keep a remote control, phone, headphones, or sleep mask within reach. Features Surface fabric: technical cloth fabric for a soft, durable feel. Filling material: onepiece resilience sponge for uniform support. Firmness: medium firm for balanced comfort and posture support. Removable cover with hidden zipper for easy cleaning. Two side storage pockets at the bottom of the cushion. Simple installation: slip the backrest onto the headboard and secure with the white strap. Specifications Size: California King 71 x 23 x 4 inches (length x height x thickness). Thickness option corresponds to 3.9 inches. Height: 23.6 inches / 60 cm. Color: Green 4. Filling thickness options available: 2.3 inches or 3.9 inches. Applicable for: Adults and children. Versatile use: bedside wedge pillow, sofa pillow, headboard backrest, pregnant woman support pillow, rest pillow. Package contents 1 x headboard cushion Care and unpacking instructions Product is vacuum packed for . Remove the vacuum bag, shake vigorously for 5 minutes to help the cushion expand, and allow up to 48 hours for full recovery. The cover can be removed via the hidden zipper for washing or spot cleaning according to fabric care recommendations. Practical use scenarios Bedroom: Place on a California King bed as a cushioned headboard for reading or watching TV. Dorm or sofa bed: Use as a backrest on a sofa bed or dorm mattress to create a comfortable seating area. Bay window or tatami: Position as a supportive cushion for sitting and relaxing in a bay window or on a tatami floor. Additional notes Fits all standard bed types when selecting the appropriate length. Designed to provide consistent, even support across the back and neck while seated.