Sleep Innovations Sage 8-inch Cooling Gel Memory Foam Mattress, Bed in a Box, Made in The USA, 20-Year Warranty - Twin Size TWIN MATTRESS: Drift into a sounder, deeper sleep on this cooling gel memory foam mattress ideal for any sleeping position and smaller body types. COMFORT & SUPPORT: Get the best nights sleep every night, with temperature regulation, proven pressure point relief and personalized alignment. COOLING GEL MEMORY FOAM: Every body is unique and deserves personalized comfortthis mattress lightly cradles your body with a DuoComfort Design including a cooling gel memory foam top layer and firm support foam bottom. MEDIUM/FIRM MATTRESS: Mattress with a medium-firm feel provides head-to-toe comfort so you wake up feeling refreshed, recharged and ready to take on the day. BED-IN-A-BOX: Mattress ships compressed and rolled in a box, conveniently delivered to your door for easy set-up. 6th Bullet: MADE IN THE USA: This Sleep Innovations mattress is proudly made in the USA, and comes with a 20-year warranty.