Easy to clean: removable, zipandbutton cover lets you quickly remove and wash the cover for a hygienic sleep and seating area. Ideal for regular use at home, in the office, or while traveling. Multifunction support: triangular back support pillow that works as a headboard pillow, sofa pillow, lumbar/back support, legelevation cushion, or knee pillow — reduces strain when sitting up, reclining, or elevating legs. Ergonomic design: shaped to follow the natural curve of your back and adjustable to different angles for comfortable reading, using a phone, or working in bed or on the couch. Builtin pocket: convenient side pocket holds small essentials like a smartphone or remote control so your items stay within reach while you relax. Durable decorative details: tufted buttons, layered stitching, and folded edges add visual interest and refine the look of a bed, sofa, or daybed; available in multiple colors to suit your decor. Practical anywhere use: lightweight and portable for easy placement on a headboard, sofa, chair, or in a vehicle for added lumbar support during travel. Use scenarios Reading in bed: position the triangular pillow behind your lower back, adjust angle for support, and store your phone or remote in the pocket. Working on a laptop on the couch: use the pillow as back support to maintain better posture and reduce lowerback pressure during extended sessions. Travel and rest: bring the pillow on long car or plane trips to support lumbar posture or use it to elevate legs for improved circulation. What it delivers Targeted back and lumbar support that adapts to multiple sitting and reclining positions Easy maintenance with a detachable cover for washing A functional, decorative cushion that fits home, office, and travel needs without extra accessories Note: This product is the triangular back support/headboard pillow described above with a removable cover, ergonomic shape, storage pocket, and decorative finishing details.