The Jefferson mattress is a 8" Cooling gel memory foam "bed-in-a-box" . MADE IN U.S.A. by Capital Bedding. Please highlight MADE IN U.S.A. since most of these type mattresses are made in China with who knows what material. TWIN SELL PRICE IS $249.00. CAN BE SOLD ON ITS OWN AND SHIPPED FEDEX. THE SALES PRICE INCLUDES FEDEX CHARGES. FULL SELL PRICE IS $299.00. CAN BE SOLD ON IT OWN AND SHIPPED FEDEX. THE SALES PRICE INCLUDES FEDEX CHARGES MATERIALS AND CONSTRUCTION - Nature 8 inch Cooling-Gel Memory Foam Mattress is designed with Technology Design. The Twin and Full size Mattress includes Breathable Tencel Mattress Cover, 1" 2.5 LB/10 ILD GEL MEMORY COOLING FOAM and a 6" base foam designed for stability and durability. Each layers contains the Technical Support needed for Deep Sleep, it provides you the Ultimate Comfort and Pampering for your Sleep. The Jefferson Twin Size: 8" x 38" x 74". The Jefferson Full Size: 8" x 53" x 74". MEETS FLAMMABILITY CODES - 16 CFR1632 & 16 CFR1633. Comes with a 10 year limited warrantee. Tencel Cover - Tencel is an excellent choice. This material is spun into yarn and then woven into a fabric that is highly absorbent and breathable. Tencel is also an excellent choice if you're a hot sleeper because it's cool fibers make you less likely to wake up with uncomfortable night sweats. The absorbent feature of this luxury fiber makes it hypoallergenic as well. COMFORT - Jefferson All-Foam mattress design combines expertise and the best materials with advanced sleep technology. Gel Memory Foam is conducive to airflow and breathability; skin-friendly fabrics adapt to the environment to keep the mattress surface at the ideal sleeping temperature; Buoyant, no-sink support foam adapts and conforms to your body for optimal pressure relief; Specialized foam reduces motion transfer of a partner so your sleep is undisturbed.