This memory foam mattress combines supportive steel springs and plush memory foam for comfort and support you can always rely on. Dream Collection 8-inch Queen Memory Foam Hybrid Mattress utilizes conforming memory foam that cradles your body while you sleep, while the traditional innerspring layer creates lasting support. The medium-firm feel of this Queen size mattress makes it perfect for all sleep styles and preferences. Plus, this convenient hybrid mattress-in-a-box ships right to your door. Just unbox it, let it decompress for up to 48 hours, and enjoy all the cool and comfortable nights ahead.  Mattress Top Type: Tight Top Mattress Type: Hybrid, Mattress In A Box Included: 1 Mattress(es) Coil Count: 228 Coils Manufacturer Warranty: 10 Year Limited Bed Size: Twin Measurements: 75 Length/Inches, 8 Height/Inches, 39 Width/Inches Maximum Weight Limit: 650 Lbs Base Material: 100% Polyurethane Comfort Type: Cushion Firm Care: Spot Clean Certifications And Listings: Certipur-Us Certified Mattress Height: 8" Country of Origin: Imported 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. Includes mattress only. Mattress plus box spring option also available.  Mattress arrives compressed in a box and then regains its size and shape after opening.