6 x 34 x 34 (1 gel memoy foam + 5 high density foam) We combined a 1 inch layer of ventilated gel memory foam and a 5 inch layer of high density support foam for pressure relief and support with a medium feel. Infused with heat capturing gel material, the top memory foam layer is designed to prevent heat build up. This surface layer of memory foam has a ventilated design that improves airflow. J Gel memory foam is naturally hypoallergenic and resistant to allergens, mold, bacteria and dust mites. Just like regular memory foam, gel infused memory foam is still very effective in offering pressure relief.? Gel memory foam is naturally hypoallergenic and resistant to allergens, mold, bacteria and dust mites. High Density Foam has a density of 1.8 and compression of 44lbs. High density support layer for a stable, breathable foundation. Will last 5-7 years. Ships compressed in a box. Made in the USA. NOTE: COVER NOT INCLUDED WE ALSO DO CUSTOM CUT FOAMS! Please send us a message of your desired measurements. COVER AVAILABLE UPON REQUEST.