Get the great night's sleep you deserve with the Elmhurst Extra Firm mattress from Mattress 1st. The 850 (Queen) Individually Wrapped Coil (IWC) System with Coil Encasement works with the contours of your body for optimal support throughout the entire mattress. A layer of Gel Active® Gel Memory Foam provides personalized comfort while a layer of Hi IFD Support™ Foam gives you additional firm support. The top features a layer of Gentle Support™ Foam and another layer of Hi IFD Support™ Foam that both provide extra support where you need it most. Finally, an EvenCool™ Fabric keeps you comfortable and cool all night long. This mattress is ideal for stomach sleepers.