The reimagined Stearns & Foster® Lux Estate 14.5" ultra firm tight top mattress is handcrafted for outstanding support and indulgent comfort. Tempur-Indulge™ memory foam, durable latex, and IntelliCoil® innersprings and PrecisionEdge™ support provides elevated levels of support, pressure relief, and durability, while an enhanced cool-to-the-touch cover and 8 air vents throughout the mattress add even more cooling and airflow for a refreshing night's sleep. Mattress Top Type: Tight Top Mattress Type: Innerspring Included: 1 Mattress(es), 1 Box Spring(s) Features: Handmade, Gel, Full Support, Wrapped Coils Additional Information: Suitable for Adjustable Bed Frames Coil Count: 984 Coils Manufacturer Warranty: 10 Year Limited Bed Size: Twin Xl Maximum Weight Limit: 600 Lbs Base Material: 100% Polyurethane Comfort Type: Extra Firm Mattress + Box Spring Measurements: 23.5 Height/Inches Care: Spot Clean Certifications And Listings: Cpsc - 16 Cfr 1632 Compliant, Cpsc - 16 Cfr 1633 Compliant 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.