Diamond Response Copper Cool Hybrid 12" Medium Mattress Size:Twin XL Experience the Helix Dusk Difference:

Experience the Helix Dusk Difference:

named Best Mattress for Side Sleepers by the Sleep Foundation

The Bear Bed Foundation

delivering all-night cooling comfort

Diamond Response Copper Cool Hybrid 12" Medium Mattress Size:Twin XL Experience the Helix Dusk Difference:Cool Touch Temperature Regulating FabricCool Copper Memory FoamCertipur HD Comfort LayersDynamic Edge Coil System20 Year Warranty. The Response Cool features a specially woven cooling fabric cover that waterfalls down the sides of the mattress. This hybrid mattress is 12" thick with an 8" dynamic edge coil base system and 4 layers of high density support foam including copper cooling memory foam. All foam layers are CertiPUR US certified Top layer of