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 Top Mattress Type: Innerspring Included: 1 Mattress(es), 1 Box Spring(s) Features: Cooling, Foam Layer, Cushioning Layer, Cooling Layer, Temperature Regulating, Adjustable Base Compatible Additional Information: Suitable for Adjustable Bed Frames, Eliminates Motion Transfer, Relieves Pressure Points, Conforms To Body Coil Count: 465 Coils Manufacturer Warranty: 10 Year Bed Size: Twin Base Material: 100% Wood Comfort Type: Medium Mattress + Box Spring Measurements: 74.5 Length/Inches, 22 Depth/Inches, 38 Width/Inches Care: Spot Clean Certifications And Listings: Cpsc - 16 Cfr 1632 Compliant, Certipur-Us Certified 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 1-800-442-7902 Don’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. This mattress meets the requirements of 16CFR Part 1632 (federal flammability (open flame) standard for mattresses and mattress pads