The Nectar Ultra 15” Memory Foam Mattress provides the pinnacle of pressure-relief with 4x more contouring memory foam* and a zoned ergonomic support layer providing targeted comfort to your shoulders, back, and hips. Stop overheating in your sleep thanks to 4x more cooling fibers* and temperature-regulating phase change material. Experience deep, uninterrupted sleep with the unparalleled comfort of Nectar Ultra. * Compared to Nectar Classic