Most models offer two common positions: about 100° (upright/reading) and about 160° (near‑flat for sleeping or napping).
They use a contoured (spine‑conforming) backrest, wide armrests and thick high‑density sponge padding to relieve pressure and support the shoulders, lumbar area and hips.
They are described as suitable for living rooms, bedrooms, study rooms and offices.
They use pillow‑style seat and back cushions filled with thick high‑density sponge padding.
Descriptions cite a solid wood frame, sturdy wooden legs and a reinforced structure that together provide a stable build to minimize shaking.