Featuring a 3 zoned coil design, this mattress offers pressure relief and support where you need it, with a cool twist® gel memory foam that contours to your body—with upgrades available for even more cooling and comfort. Cool feel™ fabric - a luxurious, breathable cover with a cool-to-the-touch sensation from technology that is plant-derived. Our biobased phase change material consists of 53% biobased content and is certified through the usda biopreferred® program.   Antimicrobial 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.   Cool twist® gel memory foam - this breathable, gel-infused memory foam gently cradles your body while promoting enhanced airflow.   850 edition custom 3 zoned support coil system. This system of individually wrapped coils provides contouring, cradling support from edge-to-edge, minimizing the impact of your partner’s movements   Proudly 100% usa assembled   Compatible with most frames, platforms and adjustable bases   We only use foam that is certipur-us certified  Mattress Top Type: Tight Top Mattress Type: Innerspring Included: 1 Mattress(es) Features: Breathable, Foam Layer, Wrapped Coils, Temperature Regulating, Antimicrobial Additional Information: Suitable for Adjustable Bed Frames, Conforms To Body Coil Count: 493 Coils Manufacturer Warranty: 10 Year Limited Bed Size: Twin Measurements: 40 Width/Inches, 76 Length/Inches, 12 Height/Inches Maximum Weight Limit: 1000 Lbs Base Material: 90% Metal, 10% Foam Comfort Type: Extra Firm Care: Spot Clean Certifications And Listings: Certipur-Us Certified Mattress Height: 12" 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. Includes mattress only. Mattress plus box spring option also available.