- Comfortable support pillow: The cylinder roll provides stable support for your head, neck and waist while you work at a desk or on the sofa, and during TV viewing or reading. It is designed to support the neck, back, knees and other joints whether you are lying flat or sitting. - Sofa and bed gap filler: This bed rest pillow runs from end to end of a king-size mattress to cover the head, foot or side, helping prevent pillows, pets and other items from falling behind, under, or out of the bed. It also serves well as a soft, elongated foam pillow for other bed sizes when placed along the wall. - Soft and comfortable neck roll: Made with waterproof fabric and ultra-soft foam to provide long-lasting comfort. The design resists flattening over time to maintain support. - Ergonomic design for natural alignment: The round foam pillow promotes proper posture, delivering maximum support and gentle comfort to reduce head, shoulder, neck, lumbar and back discomfort. - Practical use scenarios: • At a desk or on the sofa for neck, back, or knee support during work, TV, or reading. • On a king-size bed to fill gaps and prevent items from slipping behind or under the bed; can be placed along the wall for larger beds. • As an ergonomic neck roll to maintain natural alignment and comfort while resting or sleeping.