EVYA Pure Gel Hybrid Pocket Sprung Mattress.  This hybrid mattress provides excellent comfort and support with the pure gel foam and foam encapsulated pocket sprung unit. EVYA mattress collection features the very best hybrid mattresses that infuse traditional pocket sprung foundations, with high innovative foam layers created with the most technologically advanced materials. EVYA pure gel pocket sprung mattresses offer an active cool sleep experience with the cooling gel foam which provides revolutionary comfort and pressure relief, along with immediate bounce back when changing sleep positions. Designed with an open cell structure allowing significantly increased air flow than memory foam. The pure gel pocket sprung mattress has a medium firmness feel. Great night's sleep with cool temperature regulation and comfort from the cradling gel, ideal for those suffering from back / spinal pains.