Looking for superior comfort and convience? Look no further. The Serta Perfect Sleeper Splendid Slumber 12" Medium Gel Memory Foam Mattress-in-a-Box mattress delivers cool, pressure-relieving comfort and cradling support right to your front door. This gel memory foam mattress brings together 3 unique foams, our Hexcloud Gel Memory Foam, Cradlege Foam, and Cool Twist Gel Memory Foam to give you what you've been dreaming about. Plus, our antimicrobial mattress protection keeps your mattress fresh and clean from odor causing bacteria. We pack these high-quality mattresses in easy-to-move cartons to give you fuss-free comfort. Simply unpack, unroll, and unwind. This product does not protect users against bacteria, viruses, germs, or other disease organisms.  A cool, pressure-relieving medium feel 12" gel memory foam mattress that ships in a convenient carton. Cool Twist Gel Foam is swirled directly into a breathable foam designed to promote airflow and heat dissipation.  Serta's exclusive Hexcloud Gel Memory Foam boasts unique geometric cut outs to deliver cool, contouring pressure relief for oh-so-relaxing sleep. 825 individually wrapped coil system provide contouring, cradling support from edge-to-edge, minimizing the impact of your partner’s movements. Antimicrobial mattress protection: keeps mattress fresh and clean from odor causing bacteria. Easy set up- just unpack, unroll, and unwind. We only use foam that is certi-pur certified. Proudly 100% USA assembled. Compatible with most frames, platforms and adjustable bases.  Mattress Top Type: Tight Top Mattress Type: Mattress In A Box Included: 1 Mattress(es) Features: Mattress In A Box Additional Information: Suitable for Adjustable Bed Frames, Relieves Pressure Points, Eliminates Motion Transfer, Conforms To Body Manufacturer Warranty: 10 Year Limited Bed Size: California King Measurements: 83.5 Length/Inches Maximum Weight Limit: 800 Lbs Base Material: 100% Foam Comfort Type: Medium Care: Spot Clean Certifications And Listings: Certipur-Us Certified Mattress Height: 12" Country of Origin: Made in US Mattress arrives compressed in a box and then regains its size and shape after opening.