To begin with, the 12.5 inch plush hybrid mattress welcomes you with a CoolFeel knit cover that feels fresh against your skin. Next, layers of NXG Next Generation Memory Foam together with gel-infused cooling technology cradle curves so well that many owners rank it the best soft mattress for side sleepers with hip pain. Because of this cushioning you experience deep pressure relief for joints without losing support.

 Beneath the foams, a Duet Coil-in-Coil Support System pairs an inner micro-coil with a taller outer coil to give targeted spinal alignment support that helps reduce morning stiffness. Individually wrapped springs also cut motion, producing advanced motion isolation for couples every night. A high-density foam encasement reinforces each edge so you can stretch or sit right to the border in full confidence. 

Finally, you can Buy Serta iSeries NXG 2500 online from Cloudy Mattress, claim free nationwide shipping, secure Affirm financing, and sleep easy under a 120-night trial and 10-year warranty.