Say goodbye to restless nights and hello to reliable support with the Ortho Arthur Mattress by Arthur Sleep. Crafted for sleepers who need extra stability, this orthopaedic hybrid gel foam mattress delivers firm, no-sink comfort to help maintain proper posture and reduce pressure on joints and muscles. The Ortho Arthur features 2000 high-quality pocket springs and a robust, high-density gel foam core designed to keep the spine aligned and the body evenly supported throughout the night. A breathable top layer adds a subtle touch of contouring without compromising its firm feel — ideal for back and stomach sleepers or anyone who prefers a sturdy sleep surface. Finished with a soft, stretch-knit cover that promotes airflow and regulates temperature, this mattress provides a cool, clean sleep experience every night. Whether you're managing back pain, outfitting a primary bedroom, or simply prefer extra support, the Ortho Arthur is a smart, comfortable choice. Features Orthopaedic-Level Support: Firm feel is ideal for back and stomach sleepers and those who need enhanced spinal alignment. Supportive Foam Construction: High-density base foam offers lasting durability and pressure relief with minimal motion transfer. Low-Sink Surface: Helps reduce aches and pains by keeping your body lifted and aligned. Breathable Stretch-Knit Cover: Promotes airflow to help regulate temperature and wick away moisture. Arthur Sleep Mattress Size: Single (3')