The Quest 4.0 adjustable base has a sturdy and substantial design with added features like lumbar support and active head tilt articulation. This helps relieve pressure from the lower back and neck. Hello Ergo voice activation and wireless remote allow you to easily adjust your bed just the way you like it. Wind down in Relaxation Mode with a gentle massage and fully charge your device with dual USB ports. Everyday luxury is delivered at a practical price point with the Quest 4.0.