This is advertised as being 5" thick and suitable as a couch cushion replacement.  It's completely useless in that capacity.  It was delivered rolled into a tight tube.  Even when released from the packaging it only became almost 3" thick and when sat on collapsed immediately to flat.  This is false advertising.  Do not purchase if you have hopes of using it for anything other than a flimsy dog mat.  I'm so disappointed.  My first and LAST purchase from Wayfair.