Comfortable mattress.  Bought two beds; one double, one king size each with mattress.  King size is perfect, seems good quality.  However, the 4'6" bed was supplied with a 4'0" mattress.  When I requested an exchange, I felt as if Wayfair thought I was lying about the incorrect mattress being supplied.  I requested they collect the 4' mattress and supply a 4'6" mattress, but rather than accepting they provided the wrong one, they wanted to know the serial number before they agreed to collect the mattress.  After having bought a corner sofa, pouffe, three beds/mattresses, got to admit, not impressed with treatment.