Spa Sensations 8" Memory Foam Mattress, Size: Queen 8" thick memory foam mattress responds to the heat and pressure of your body; Creates a customized sleep surface High-density foam base layer adds support Queen: 60'' x 80'' Memory foam mattress is tightly packed and vacuum sealed, please allow several hours to return to original shape. There may be a faint odor from being sealed, this is normal and will disappear in a few hours when exposed to air.