So far the mattress feels like a typical foam mattress.  Very comfortable.  The price was amazingly affordable for a king.  Haven’t had a chance to use it much as it was just unpackaged last night.  It was shipped very well packed.  Easy to store until we were ready to install.  These mattresses might be the new wave of the future mattresses.  Didn’t quite know what to expect.  So far very impressed for the quality and price of a foam mattress.  I normally would have went Temperpedic.