Beautyrest select features our world’s premier support system along with pressure relieving foams and dual cool plus technology to keep your mattress fresh and cool.Mattress Top Type: Tight TopMattress Type: InnerspringIncluded: 1 Mattress(es)Features: Cushioning Layer, Temperature Regulating, Cooling Layer, Adjustable Base Compatible, Foam LayerAdditional Information: Relieves Pressure Points, Suitable for Adjustable Bed Frames, Conforms To Body, Eliminates Motion TransferCoil Count: 465 CoilsManufacturer Warranty: 10 YearBed Size: TwinMeasurements: 38 Width/Inches, 13 Height/Inches, 74.5 Length/InchesBase Material: 100% WoodComfort Type: MediumCare: Spot CleanCertifications And Listings: Certipur-Us Certified, Cpsc - 16 Cfr 1632 CompliantMattress Height: 13"Country 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. Includes mattress only. Mattress plus box spring option also available. This mattress meets the requirements of 16CFR Part 1632 (federal flammability (open flame) standard for mattresses and mattress pads Beautyrest® Select 13" Medium Tight Top - Mattress Only