Drift into cool comfort and dependable support each night with a super king mattress that blends a 12.5 gauge Bonnell spring core with an enhanced gel layer for orthopaedic relief and temperature balance. Nightfall's open coil system encourages better spinal alignment while the gel contours to your body, easing pressure and helping keep you cool. Soft recycled polyester layers and a quilted panel add a gentle touch, making every sleep both supportive and soothing. With a hypoallergenic cover and a soft to medium feel, it's boxed and ready for simple setup, so you'll enjoy a glacier-fresh sleep in no time.