Quality Materials and Durable Support Cover: soft, plush fabric that is skinfriendly, breathable and comfortable for prolonged use. Filling: resilient pearl cotton provides lasting elasticity and firm back support without flattening over time. Construction: extrawide bottom for stable placement behind the back or along the headboard area. Ergonomic Back Support Wedge shape follows the natural curvature of the spine to support the upper body and shoulders. Reduces pressure and muscle strain while reading, watching TV, working on a laptop, or resting upright. Designed for longterm comfort and postural support. Easy to Use and Maintain Removable cover secured with detachable buttons and a side zipper for quick removal and cleaning. Stable fit: wider base prevents slipping and keeps the pillow in place against the mattress or wall. Versatile Headboard Alternative Extralarge size fills the gap between mattress and wall to serve as a comfortable, sturdy backrest or headboard substitute. Converts a sofa bed into a more comfortable seating area or joins two twin beds into a sofastyle bed arrangement. Also suitable as a protective cushion for children and as a caravan/RV headboard solution. Compatible with standard bed sizes and typical sofa/bed configurations. Practical Use Scenarios Reading and Relaxation: Sit up in bed with solid lumbar and shoulder support for long reading sessions without slouching. Media and Work: Use as a stable backrest for watching TV or working on a laptop from bed or a sofa bed. Travel and Family: Place in a caravan or RV as a compact headboard, or use as a safety cushion and backrest when two twin beds are converted into a sofa. What makes this pillow stand out Combination of plush, breathable fabric and resilience pearl cotton for comfort and longevity. Ergonomic wedge design tailored to support posture and reduce upperbody pressure. Practical fastening system (zipper + detachable buttons) for easy cleaning and secure fit. Large, stable footprint that adapts to beds, sofa beds, and caravans while protecting children and improving seating comfort.