Classic Brands Cool Gel Memory Foam 6-Inch Mattress, CertiPUR-US Certified, Twin Perfect solution for Back To School, great for kids' rooms, bunk beds, and dorms 39" W x 75" L x 6" H This 6-inch profile gel memory foam is cozy and conforming for a better night's sleep Beautifully detailed all around cover with four-way stretch works with the memory foam to optimize its conforming properties Pressure relieving gel foam naturally draws heat away from the body for a more comfortable night's sleep; The high-density base foam layer mold and conform to the body to eliminate tossing and turning High-quality memory foam and pressure relieving gel memory foam are naturally hypoallergenic and resistant to allergens, mold, bacteria, and dust mites and it meets CertiPUR-US program standards for performance, emissions, and durability Medium cushion-firm feel; can be used in RV's and boats and is adjustable base friendly Mattress ships compressed, rolled and shipped in a box conveniently delivered to your door for easy set-up; frame/foundation/base not included