If comfort is at the top of your list of priorities, then the USM PR340 Heat and Massage Lift Chair is the perfect option for you. This 3 position model comes standard with lower back heat and vibrating massage and is designed to accommodate medium build users and provide full body cushioning and support. The chair's seat is constructed of four durable seat springs that will provide a lifetime of support without sagging. The overstuffed seam seat back also adds another layer of comfort and luxury. Most importantly, this powerful life chair will help you sit and stand without assistance and increase your freedom and mobility.