Mattress Top Type: Tight Top Mattress Type: Memory Foam Included: 1 Box Spring(s), 1 Mattress(es) Features: Foam Layer, Cooling Layer, Cushioning Layer, Full Support, Zone Quilting, Temperature Regulating Additional Information: Eliminates Motion Transfer, Suitable for Adjustable Bed Frames, Conforms To Body, Relieves Pressure Points Manufacturer Warranty: 10 Year Limited Bed Size: Twin Xl Measurements: 38 Width\Inches, 12 Height\Inches, 79.5 Depth\Inches Maximum Weight Limit: 850 Lbs Base Material: 100% Foam Comfort Type: Plush Mattress + Box Spring Measurements: 21 Depth\Inches, 79.5 Length\Inches, 38 Width\Inches Care: Spot Clean Certifications And Listings: Certipur-Us Certified Country of Origin: Made in US Set includes mattress plus box spring\foundation. King and Cal. King mattress sets feature 2-piece side-by-side foundations for easier navigation in tight spaces. new!Serta iComfort® Aveda 12" Plush Memory Foam - Mattress + Box Spring