Best Pillows for Side Sleepers 2026

Side sleepers need a pillow thick enough to fill the gap between shoulder and head, keeping the spine aligned through the night. We tested loft, firmness, and shape retention over months of nightly use. Memory foam and latex hold their shape best, while down alternative offers a softer feel. The right pillow eliminates neck pain and morning stiffness by maintaining neutral cervical alignment in the lateral position.