Allswell’s Supreme medium-firm hybrid mattress offers luxurious sleep at the best possible price, taking luxe to the next level. This hybrid mattress blends the main element from traditional mattresses (coil springs) with layers of memory foam. Memory foam provides supreme comfort and support and traditional spring coils provide classic comfort and a familiar bouncy feel. The eurotop mattress features two layers of high-performance memory foam underneath its plush quilted surface for a supreme sleep experience. Underneath is the hybrid mattress construction. Edge Support with Reinforced Quantum Edge You will feel as secure lying at the edge of your mattress as you do in the center thanks to Allswell’s Edge Support. The pocketed coil system works to lift you up whether you’re lying on your back, your side or on your stomach on the side of the bed. A Medium-Firm Feel That’s Just Right Allswell has become known for extra layers of innovative memory foam combined with individually wrapped coils for the perfect blend of comfort and support to give the just-right medium-firm feel. Stay asleep with individually wrapped coils that help minimize motion transfer. Gel-Infused Memory Foam Absorbs Heat Away from You A cooling graphite and copper gel layer absorbs and transfers heat away from the body. Copper is naturally microbial, helping the mattress to stay fresh for a long time. Two inches of Energexâ„¢ foam provides pressure relief over a wide range of temperature. Built-in Eurotop for Maximum Plushness The Allswell King mattress’s layers of of innovative memory foam with individually wrapped coils is topped with a plush two-layer eurotop of high-performance memory foam. The signature quilted plush surface is woven with Allswell’s signature ‘A’ for a bed that’s as attractive as it is comfortable. What are the dimensions of the Allswell King Mattress? The king-size version of this Allswell mattress measures 76" x 80" x 14".