Weimoc Ultimate Dreams Short 9-Inch Crazy Euro Top mattress, Queen 9 Inch Thick Medium Firm Convoluted High Density Foam Mattress, it can take up to 24-48 hours for the mattress to take shape. 100% Made in USA, 100% Made in USA components All of our Foams are Certipur-US and meet the highest standards for quality Dual Convoluted Foam Core Layers with TriZone Support Roll Packed and Delivered right to your front door!