Martha Stewart Firm Support Pocket Spring and Foam Hybrid Dual-Action Cooling Mattress Twin - Firm

Martha Stewart 12 Inch Twin Firm Hybrid Pocket Spring and Foam Dual-Action Cooling Mattress with Soft Breathable CoolWeave Jacquard Knitted Top Firm support pocket spring and foam twin hybrid mattress in a box White soft knit removable Jacquard cover with CoolWeave technology CertiPUR-US Certified foam layers Cooling gel memory foam and highly resilient foam layers for contoured comfort and motion isolation Individually wrapped pocket springs provide various tensions and firmness Firm perimeter coil and foam encasement for additional edge support Support foam base layer for added stability Ideal for back and stomach sleepers and fits most bed frames with a foundation or slatted supports Expertly packed and conveniently delivered compressed and boxed for easy handling Please allow 48-72 hours for complete expansion Dimensions - 39"W x 75"D x 12"H