​Featuring 825 density coils, this supportive mattress offers zoned comfort and pressure relief where you need it—with upgrades available for even more cooling and comfort.Gel memory foam lumbar support band provides support for the lower back and hipsSerta® pillowsoft® aire a soft foam provides enhanced cushioning for exceptional comfort and promotes airflow through its unique, gently rippling designAntimicrobial mattress protection - keeps your mattress fresh and clean from odor causing bacteria. This product protects the mattress but does not protect users against bacteria, viruses, germs or other disease organisms.Custom support coil system - 805 individually wrapped coil system in addition to providing contouring, cradling support, this system of up to 805 individually wrapped coils features serta’s bestedge® foam encasement technologyAn extra-deep foam rail to help reduce edge roll-off and extend the sleep surface.Proudly 100% USA assembledCompatible with most frames, platforms, and adjustable basesWe only use foam that is certipur-us certified Mattress Top Type: Tight TopMattress Type: InnerspringIncluded: 1 Mattress(es), 1 Box Spring(s)Features: Adjustable Base Compatible, Wrapped Coils, Foam Layer, AntimicrobialAdditional Information: Conforms To Body, Suitable for Adjustable Bed FramesCoil Count: 493 CoilsManufacturer Warranty: 10 Year LimitedBed Size: TwinMaximum Weight Limit: 1000 LbsBase Material: 90% Metal, 10% FoamComfort Type: PlushMattress + Box Spring Measurements: 19.5 Height/InchesCare: Spot CleanCertifications And Listings: Certipur-Us CertifiedCountry of Origin: Made in US Visit our Furniture & Mattress Customer Care Center for delivery options, protection plans and other services.Problem with an order or need help with a return? Our Furniture & Mattress Customer Service agents will be happy to help. Give us a call at 1-800-442-7902Don’t forget to print off your delivery checklist to avoid any delays or issues when delivering your item. 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. Serta Perfect Sleeper Adoring Night 10.5" Plush Mattress + Box Spring