Shoppers searching for a back pillow usually want something to lean against while sitting up, so the choice comes down to a wedge, a reading pillow with arms, or a slim lumbar roll.
- Shape: a wedge spreads weight along your whole back, while an armrest pillow braces your shoulders and elbows.
- Firmness: high-density foam stays upright under a full body lean; shredded foam lets you reshape the surface.
- Cover fabric: breathable cotton or bamboo blends feel cooler than velvet if you sit for long stretches.
Check the height and width listed so the pillow fits between you and your headboard.