High Quality Pandora-Round Memory Foam Mattress is 87 inches in diameter and 10 inches thick, it has the support base layer of 7 inches of high density foam core and 3 inches of 4.6 lbs density Next Generation Visco Memory Foam, creating a medium firmness Our s level with contouring support and cradling feel that naturally conforms to your body's weight and temperature. Memory foam is resistant to dust mites and is naturally antimicrobial. Dimension:87" diameter - 10" thick, Allergen-resistant removable and washable cover with non-skid bottom. This mattress is Vacuum packed and ships in a rectangular box. Weight: 105 lbs.