The Under Mattress Gentle Incline Elevator is a 7" foam cushion designed for those looking for a comfortable and supportive sleeping experience. This king-sized foam cushion comes with two 30" wide foam elevators, providing a gentle incline to help with posture and circulation while sleeping. Made with polyurethane foam, this cushion offers medium firmness and is easy to care for with hand wash instructions. Perfect for adults looking for a comfortable and supportive sleep solution.