Simba’s innovative Hybrid 2500 Pocket Mattress combines hybrid technology for the perfect medium firm sleep surface. Receiving numerous accreditations including Good Housekeeping Institute 2021, this mattress was proudly awarded the Real Homes Gold award. Smaller and slimmer than regular pocket springs, the 2500 Aerocoil® springs respond to your every movement. The Simba-Pure® foam base is ergonomically zoned to hug every curve of your body. The unique Simbatex® foam top layer is infused with graphite for temperature regulation. Includes a 60 night sleep trial. Next day delivery. 10 year guarantee.